Poul Einar Heegaard
Om
Education
-
Master's Degree (Siv.ing.) in 1989 from Division of Computer Systems and Telematics, NTH (now NTNU) while working as a Teaching assistant (1988-1989). Thesis title: “Transient dependability properties in distributed systems”.
-
PhD degree (Dr.ing.) in 1998 from Department of Telematics, NTNU while working as Research Scholar (1994-1998). Thesis title:"Efficient simulation of network performance by importance sampling".
Experience
-
Professor at Department of Information Security and Communication Technology (IIK), NTNU (2017-current)
- Head of Networking Research Group @ IIK (2019-2021)
-
Head of Department, Department of Telematics, NTNU (2009-2013)
-
Professor at Department of Telematics (ITEM), NTNU (2010-2017)
- Head of NTNU QUAM-lab (2015-2019)
-
Research Scientist (1989-1999) and Senior Research Scientist from 1999 at SINTEF Telecom and Informatics
-
Associate Professor at Department of Telematics, NTNU, in adjunct position (20%) in 1999-2003, reduced position (50%) in 2003-2006), and full time position since 2006. Coordinator of Network Research area 2006-2009.
-
Research Scientist (1999-2001) and Senior Scientist (2001-2009) at Telenor Research and Development
-
Visiting researcher (March, 2007) hosted by Dr. Sandmann at University of Bamberg, Germany
-
Visiting researcher (Sept 2007-July 2008) hosted by Prof. Trivedi at Duke University, Durham, NC
-
Visiting researcher Lucent Technologies Bell Labs (Aug 2016), hosted by Dr Veena Mendiratta
-
Visiting professor University of Illinois at Urbana-Champaign (Aug 2016), hosted by Ravishankar K. Iyer
-
Visiting professor University of Zagreb FER (Apr 2015 and Aug 2016), hosted by Ass.Prof. Lea Skorin-Kapov.
-
Visiting professor Budapest University of Technology and Economics (Sept 2016), hosted by Ass.Prof. Gergely Biczók
-
Visiting professor TU München (Oct - Dec 2015), hosted by Prof. Wolfgang Kellerer
-
Visiting professor Ghent University (Jan - Jun 2016), hosted by Prof. Piet Demeester
-
Visiting professor TU München (Aug - Dec 2022), hosted by Prof. Wolfgang Kellerer
-
Visiting professor Ghent University (Jan - Jun 2023), hosted by Prof. Lieven De Marez
Courses
-
TTM4110 Dependability and Performance with Discrete Event Simulation (textbook [EHHP16]) [subject responsible]
-
TM8105 Advanced Simulations Methodologies, PhD course started autumn 2004 [subject responsible together with Prof Helvik]
-
TTM4120 Dependable Systems. [subject responsible when Prof Helvik was on sabbatical leave 2005]
-
TTM9 Traffic and dependability, Laboratory in tools and methodology [in course development, now subject responsible Prof Helvik]
-
TTM4185: Security and Robustness in ICT system
[EHHP16] Peder J. Emstad, Poul E. Heegaard, Bjarne E. Helvik, Laurent Paquereau. Dependability and performance with discrete event simulation. : Tapir akademiske forlag 2016. 278 s. NTNU
Research interests
-
QoS evaluation and management in communication systems and services
-
rare event simulation techniques
-
survivability quantification
-
monitoring, routing and management in dynamic networks
-
distributed, autonomous and adaptive management and routing
My webpage at Department of Information Security and Communication Technology contains more details about me, see here.
Publikasjoner
2023
-
Myhre, Stine Fleischer;
Fosso, Olav Bjarte;
Gjerde, Oddbjørn;
Heegaard, Poul Einar.
(2023)
Reliability Assessment Tool for Modern Electrical Distribution Systems - A Monte Carlo Simulation Approach.
Norges teknisk-naturvitenskapelige universitet
Norges teknisk-naturvitenskapelige universitet
Doktorgradsavhandling
-
Ystgaard, Kaja Fjørtoft;
Atzori, Luigi;
Palma, David;
Heegaard, Poul Einar;
Bertheussen, Lene Elisabeth;
Jensen, Magnus Rom.
(2023)
Review of the theory, principles, and design requirements of human-centric Internet of Things (IoT).
Journal of Ambient Intelligence and Humanized Computing
Vitenskapelig artikkel
-
Hossfeld, Tobias;
Varela, Martin;
Skorin-Kapov, Lea;
Heegaard, Poul Einar.
(2023)
A Greener Experience: Trade-Offs between QoE and CO<inf>2</inf> Emissions in Today's and 6G Networks.
IEEE Communications Magazine
Vitenskapelig artikkel
-
Vatten, Trond;
Jiang, Yuming;
Heegaard, Poul Einar.
(2023)
Assessing NFV Network Recovery Strategies after Random Failures and Targeted Attacks.
IEEE conference proceedings
Vitenskapelig Kapittel/Artikkel/Konferanseartikkel
-
Hossfeld, Tobias;
Heegaard, Poul Einar;
Kellerer, Wolfgang.
(2023)
Comparing the Scalability of Communication Networks and Systems.
IEEE Access
Vitenskapelig artikkel
-
Gajic, Marija;
Lange, Stanislav;
Vatten, Trond;
Furdek, Marija;
Heegaard, Poul Einar.
(2023)
Survivability Assessment of 5G Network Slicing During Massive Outages.
IEEE conference proceedings
Vitenskapelig Kapittel/Artikkel/Konferanseartikkel
2022
-
Hoßfeld, Tobias;
Heegaard, Poul Einar;
Varela, Martin;
Jarchel, Michael.
(2022)
User-Centric Markov Reward Model on the Example of Cloud Gaming.
IEEE Xplore Digital Library
Vitenskapelig artikkel
-
Hoßfeld, Tobias;
Varela, Martin;
Skorin-Kapov, Lea;
Heegaard, Poul Einar.
(2022)
What is the trade-off between CO2 emission and video-conferencing QoE? .
SIGMM Records
Vitenskapelig artikkel
-
Gebraselase, Befekadu;
Adrah, Charles Mawutor;
Zerihun, Tesfaye Amare;
Helvik, Bjarne Emil;
Heegaard, Poul Einar.
(2022)
Blockchain Support For Time-Critical Self-Healing In Smart Distribution Grids.
IEEE (Institute of Electrical and Electronics Engineers)
Vitenskapelig Kapittel/Artikkel/Konferanseartikkel
-
Adrah, Charles Mawutor;
Palma, David;
Kure, Øivind;
Heegaard, Poul Einar.
(2022)
Deploying 5G architecture for protection systems in smart distribution grids.
IEEE conference proceedings
Vitenskapelig Kapittel/Artikkel/Konferanseartikkel
-
Myhre, Stine Fleischer;
Fosso, Olav B;
Heegaard, Poul Einar;
Gjerde, Oddbjørn.
(2022)
RELSAD: A Python package for reliability assessment of modern distribution systems.
Journal of Open Source Software (JOSS)
Vitenskapelig artikkel
2021
-
Mehmood, Kashif;
Mendis, Handunneththi V. Kalpanie;
Kralevska, Katina;
Heegaard, Poul Einar.
(2021)
Intensjonsbasert nettverksadministrasjon og orkestrering for smarte distribusjonsnett.
IEEE (Institute of Electrical and Electronics Engineers)
Vitenskapelig Kapittel/Artikkel/Konferanseartikkel
-
Muka, Romina;
Garau, Michele;
Tola, Besmir;
Heegaard, Poul Einar.
(2021)
Effect of 5G communication service failure on placement of Intelligent Electronic Devices in Smart Distribution Grids.
IEEE (Institute of Electrical and Electronics Engineers)
Vitenskapelig Kapittel/Artikkel/Konferanseartikkel
-
Mendis, Handunneththi V. Kalpanie;
Heegaard, Poul Einar;
Casares-Giner, Vicente;
Li, Frank Yong;
Kralevska, Katina.
(2021)
Transient Performance Modelling of 5G Slicing with Mixed Numerologies for Smart Grid Traffic.
IEEE (Institute of Electrical and Electronics Engineers)
Vitenskapelig Kapittel/Artikkel/Konferanseartikkel
-
Haugli, Fredrik Bakkevig;
Heegaard, Poul Einar.
(2021)
Modeling framework for study of distributed and centralized smart grid system services.
IEEE (Institute of Electrical and Electronics Engineers)
Vitenskapelig Kapittel/Artikkel/Konferanseartikkel
-
Garau, Michele;
Muka, Romina;
Heegaard, Poul Einar;
Helvik, Bjarne Emil.
(2021)
Co-simulation and Discrete Event Simulation for Reliability Assessment of Power System and ICT: A Comparison.
IEEE (Institute of Electrical and Electronics Engineers)
Vitenskapelig Kapittel/Artikkel/Konferanseartikkel
-
Muka, Romina;
Garau, Michele;
Heegaard, Poul Einar.
(2021)
Genetic algorithm for placement of IEDs for fault location in smart distribution grids.
Institution of Engineering and Technology (IET)
Vitenskapelig Kapittel/Artikkel/Konferanseartikkel
2020
-
Rak, Jacek;
Heegaard, Poul Einar;
Helvik, Bjarne Emil.
(2020)
Resilience of communication networks to random failures and disasters: An optimization perspective.
Networks
Vitenskapelig artikkel
-
Kamisinski, Andrzej;
Musumeci, Francesco;
Hmaity, Ali;
Tornatore, Massimo;
Casazza, Marco;
Farshad, Arsham.
(2020)
Resilient NFV Technology and Solutions.
Springer
Faglig kapittel
-
Helvik, Bjarne Emil;
Vizarreta, Petra;
Heegaard, Poul Einar;
Trivedi, Kishor;
Mas Machuca, Carmen.
(2020)
Modelling of Software Failures.
Springer
Faglig kapittel
-
Barani, Mostafa;
Vadlamudi, Vijay Venu;
Heegaard, Poul Einar.
(2020)
Reliability analysis of cyber‐physical microgrids: Study of grid‐connected microgrids with communication‐based control systems.
IET Generation, Transmission & Distribution
Vitenskapelig artikkel
-
Hossfeld, Tobias;
Heegaard, Poul Einar;
Skorin-Kapov, Lea;
Varela, Martin;
Fiedler, Markus.
(2020)
From QoS Distributions to QoE Distributions: a System's Perspective.
IEEE (Institute of Electrical and Electronics Engineers)
Vitenskapelig Kapittel/Artikkel/Konferanseartikkel
-
Myhre, Stine Fleischer;
Fosso, Olav B;
Heegaard, Poul Einar;
Gjerde, Oddbjørn;
Kjølle, Gerd Hovin.
(2020)
Modeling Interdependencies with Complex Network Theory in a Combined Electrical Power and ICT System.
IEEE (Institute of Electrical and Electronics Engineers)
Vitenskapelig Kapittel/Artikkel/Konferanseartikkel
-
Refvik, Håvard Sandgrind;
Heegaard, Poul Einar.
(2020)
Robustness of short-term load forecasting models for smart grids.
NTNU
Mastergradsoppgave
-
Adrah, Charles Mawutor;
Palma, David;
Kure, Øivind;
Heegaard, Poul Einar.
(2020)
A network design algorithm for multicast communication architectures in smart transmission grids.
Electric power systems research
Vitenskapelig artikkel
-
Gajic, Marija;
Furdek, Marija;
Heegaard, Poul Einar.
(2020)
A Framework for Spatial and Temporal Evaluation of Network Disaster Recovery.
IEEE Press
Vitenskapelig Kapittel/Artikkel/Konferanseartikkel
-
Hossfeld, Tobias;
Heegaard, Poul Einar;
Skorin-Kapov, Lea;
Varela, Martin.
(2020)
Deriving QoE in systems: from fundamental relationships to a QoE-based Service-level Quality Index.
Quality and User Experience
Vitenskapelig artikkel
2019
-
Mendis, Handunneththi V. Kalpanie;
Heegaard, Poul Einar;
Kralevska, Katina.
(2019)
5G Network Slicing as an Enabler for Smart Distribution Grid Operations.
CIRED Conference Proceedings
Vitenskapelig artikkel
-
Hossfeld, Tobias;
Atzori, Luigi;
Heegaard, Poul Einar;
Skorin-Kapov, Lea;
Varela, Martin.
(2019)
The Interplay between QoE, User Behavior and System Blocking in QoE Management.
IEEE (Institute of Electrical and Electronics Engineers)
Vitenskapelig Kapittel/Artikkel/Konferanseartikkel
-
De Moor, Katrien;
Borge, Hege Krokås;
Heegaard, Poul Einar.
(2019)
Young children and the use of video chat: implications for QoE research.
IEEE (Institute of Electrical and Electronics Engineers)
Vitenskapelig Kapittel/Artikkel/Konferanseartikkel
-
Hossfeld, Tobias;
Heegaard, Poul Einar;
Skorin-Kapov, Lea;
Varela, Martin.
(2019)
Fundamental Relationships for Deriving QoE in Systems.
IEEE (Institute of Electrical and Electronics Engineers)
Vitenskapelig Kapittel/Artikkel/Konferanseartikkel
-
Ammar, Doreid;
De Moor, Katrien;
Skorin-Kapov, Lea;
Fiedler, Markus;
Heegaard, Poul Einar.
(2019)
Exploring the Usefulness of Machine Learning in the Context of WebRTC Performance Estimation.
IEEE (Institute of Electrical and Electronics Engineers)
Vitenskapelig Kapittel/Artikkel/Konferanseartikkel
-
Hossfeld, Tobias;
Heegaard, Poul Einar;
Skorin-Kapov, Lea;
Varela, Martin.
(2019)
On System QoE: Merging the system and the QoE perspectives.
SIGMM Records
Vitenskapelig artikkel
-
Rak, Jacek;
Heegaard, Poul Einar;
Helvik, Bjarne Emil.
(2019)
Highlights from RNDM 2018 – 10th Anniversary Workshop on Resilient Networks Design and Modeling.
IEEE Communications Magazine
Sammendrag/abstract
-
Muka, Romina;
Haugli, Fredrik Bakkevig;
Vefsnmo, Hanne;
Heegaard, Poul Einar.
(2019)
Information Inconsistencies in Smart Distribution
Grids under Different Failure Causes modelled by
Stochastic Activity Networks.
IEEE (Institute of Electrical and Electronics Engineers)
Vitenskapelig Kapittel/Artikkel/Konferanseartikkel
-
Metzger, Florian;
Hossfeld, Tobias;
Bauer, André;
Kounev, Samuel;
Heegaard, Poul Einar.
(2019)
Modeling of Aggregated IoT Traffic and Its Application to an IoT Cloud.
Proceedings of the IEEE
Vitenskapelig artikkel
-
Adrah, Charles Mawutor;
Yellajosula, Jaya R. A. K.;
Kure, Øivind;
Palma, David;
Heegaard, Poul Einar.
(2019)
An IP Multicast Framework for Routable Sample Value Communication in Transmission Grids.
Journal of Communications
Vitenskapelig artikkel
2018
-
Hoßfeld, Tobias;
Varela, Martin;
Heegaard, Poul Einar;
Skorin-Kapov, Lea.
(2018)
QoE Analysis of the Setup of Different Internet Services for FIFO Server Systems.
Lecture Notes in Computer Science (LNCS)
Vitenskapelig artikkel
-
Ammar, Doreid;
De Moor, Katrien;
Heegaard, Poul Einar.
(2018)
An Experimental Platform for QoE Studies of WebRTC-based Multi-Party Video Communication.
International Journal of New Computer Architectures and their Applications (IJNCAA)
Vitenskapelig artikkel
-
Hossfeld, Tobias;
Skorin-Kapov, Lea;
Heegaard, Poul Einar;
Varela, Martin.
(2018)
A new QoE fairness index for QoE management
.
Quality and User Experience
Vitenskapelig artikkel
-
Moldovan, Christian;
Skorin-Kapov, Lea;
Heegaard, Poul Einar;
Hossfeld, Tobias.
(2018)
Optimal Fairness and Quality in Video Streaming with Multiple Users.
IEEE Press
Vitenskapelig Kapittel/Artikkel/Konferanseartikkel
-
Hossfeld, Tobias;
Varela, Martin;
Heegaard, Poul Einar;
Skorin-Kapov, Lea.
(2018)
Observations on Emerging Aspects in QoE Modeling and Their Impact on QoE Management
.
IEEE (Institute of Electrical and Electronics Engineers)
Vitenskapelig Kapittel/Artikkel/Konferanseartikkel
-
Hossfeld, Tobias;
Metzger, Florian;
Heegaard, Poul Einar.
(2018)
Traffic modeling for aggregated periodic IoT data
.
IEEE Press
Vitenskapelig Kapittel/Artikkel/Konferanseartikkel
-
Xie, Lang;
Heegaard, Poul Einar;
Jiang, Yuming.
(2018)
Non-Markovian Survivability Assessment Model for Infrastructure Wireless Networks.
Proceedings of the International Symposium on Wireless Communication Systems
Vitenskapelig artikkel
-
Esposito, Christian;
Gouglidis, Antonios;
Hutchison, David;
Gurtov, Andrei;
Helvik, Bjarne Emil;
Heegaard, Poul Einar.
(2018)
On the Disaster Resiliency within the Context of 5G Networks: The RECODIS Experience.
IEEE Press
Vitenskapelig Kapittel/Artikkel/Konferanseartikkel
-
Oostenbrink, Jorik;
Kuipers, Fernando;
Heegaard, Poul Einar;
Helvik, Bjarne Emil.
(2018)
Evaluating Local Disaster Recovery Strategies.
Performance Evaluation Review
Vitenskapelig artikkel
-
Heegaard, Poul Einar;
Helvik, Bjarne Emil;
Rak, Jacek.
(2018)
Proceedings 10th International Workshop on Resilient Networks Design and Modeling (RNDM).
IEEE Press
International Workshop on Resilient Networks Design and Modeling (10)
Vitenskapelig antologi/Konferanseserie
-
Zerihun, Tesfaye Amare;
Helvik, Bjarne Emil;
Heegaard, Poul Einar.
(2018)
A modeling approach for dependability analysis of smart distribution grids
.
IEEE Press
Vitenskapelig Kapittel/Artikkel/Konferanseartikkel
-
Vizarreta, Petra;
Trivedi, Kishor;
Helvik, Bjarne Emil;
Heegaard, Poul Einar;
Blenk, Andreas;
Kellerer, Wolfgang.
(2018)
Assessing the Maturity of SDN Controllers with Software Reliability Growth Models.
IEEE Transactions on Network and Service Management
Vitenskapelig artikkel
-
Gonzalez, Andres Javier;
Nencioni, Gianfranco;
Kamisinski, Andrzej;
Helvik, Bjarne Emil;
Heegaard, Poul Einar.
(2018)
Dependability of the NFV Orchestrator: State of the Art and Research Challenges.
IEEE Communications Surveys and Tutorials
Vitenskapelig artikkel
2017
-
Ammar, Doreid;
De Moor, Katrien;
Heegaard, Poul Einar.
(2017)
An Experimental Platform for QoE Studies of WebRTC-based Multi-Party Video Communication.
IEEE (Institute of Electrical and Electronics Engineers)
Vitenskapelig Kapittel/Artikkel/Konferanseartikkel
-
Xie, Lang;
Heegaard, Poul Einar;
Jiang, Yuming.
(2017)
Survivability analysis of a two-tier infrastructure-based wireless network.
Computer Networks
Vitenskapelig artikkel
-
Biczok, Gergely;
Dramitinos, Manos;
Toka, Lazio;
Heegaard, Poul Einar;
Lønsethagen, Håkon.
(2017)
Manufactured by software: SDN-enabled multi-operator composite services with the 5G Exchange.
IEEE Communications Magazine
Vitenskapelig artikkel
-
Hossfeld, Tobias;
Heegaard, Poul Einar;
Skorin-Kapov, Lea;
Varela, Martin.
(2017)
No Silver Bullet: QoE Metrics, QoE Fairness, and User Diversity in the Context of QoE Management.
IEEE (Institute of Electrical and Electronics Engineers)
Vitenskapelig Kapittel/Artikkel/Konferanseartikkel
-
Vizarreta, Petra;
Heegaard, Poul Einar;
Helvik, Bjarne Emil;
Kellerer, Wolfgang;
Mas Machuca, Carmen.
(2017)
Characterization of Failure Dynamics in SDN Controllers.
IEEE (Institute of Electrical and Electronics Engineers)
Vitenskapelig Kapittel/Artikkel/Konferanseartikkel
-
Nencioni, Gianfranco;
Helvik, Bjarne Emil;
Heegaard, Poul Einar.
(2017)
Including Failure Correlation in Availability Modeling of a Software-Defined Backbone Network.
IEEE Transactions on Network and Service Management
Vitenskapelig artikkel
-
De Moor, Katrien;
Arndt, Sebastian;
Ammar, Doreid;
Voigt-Antons, Jan-Niklas;
Perkis, Andrew;
Heegaard, Poul Einar.
(2017)
Exploring diverse measures for evaluating QoE in the context of WebRTC.
IEEE (Institute of Electrical and Electronics Engineers)
Vitenskapelig Kapittel/Artikkel/Konferanseartikkel
-
Nencioni, Gianfranco;
Helvik, Bjarne Emil;
Heegaard, Poul Einar.
(2017)
Implementing the Availability Model of a Software-Defined Backbone Network in Möbius.
NTNU
Rapport
-
Hossfeld, Tobias;
Skorin-Kapov, Lea;
Heegaard, Poul Einar;
Varela, Martin.
(2017)
Definition of QoE Fairness in Shared Systems.
IEEE Communications Letters
Vitenskapelig artikkel
-
Gullhav, Anders Nordby;
Nygreen, Bjørn;
Heegaard, Poul Einar.
(2017)
Simulation of the response time distribution of fault-tolerant multi-tier cloud services.
Journal of Simulation
Vitenskapelig artikkel
-
Vizarreta, Petra;
Trivedi, Kishor;
Helvik, Bjarne Emil;
Heegaard, Poul Einar;
Kellerer, Wolfgang;
Mas Machuca, Carmen.
(2017)
An empirical study of software reliability in SDN controllers.
IEEE (Institute of Electrical and Electronics Engineers)
Vitenskapelig Kapittel/Artikkel/Konferanseartikkel
2016
-
Hossfeld, Tobias;
Skorin-Kapov, Lea;
Heegaard, Poul Einar;
Varela, Martin;
Chen, Kuan-ta.
(2016)
On Additive and Multiplicative QoS-QoE Models for Multiple QoS Parameters.
Vitenskapelig Kapittel/Artikkel/Konferanseartikkel
-
Nencioni, Gianfranco;
Helvik, Bjarne Emil;
Gonzalez, Andres Javier;
Heegaard, Poul Einar;
Kamisinski, Andrzej.
(2016)
Impact of SDN Controllers Deployment on Network Availability.
NTNU
Rapport
-
Tornatore, Massimo;
André, Joao;
Babarczi, Peter;
Braun, Torsten;
Følstad, Eirik Larsen;
Heegaard, Poul Einar.
(2016)
A Survey on Network Resiliency Methodologies against Weather-based Disruptions.
IEEE Sarnoff Symposium
Vitenskapelig Kapittel/Artikkel/Konferanseartikkel
-
Ammar, Doreid;
De Moor, Katrien;
Heegaard, Poul Einar;
Fiedler, Markus;
Xie, Min.
(2016)
Revealing the Dark Side of WebRTC Statistics Collected by Google Chrome.
IEEE (Institute of Electrical and Electronics Engineers)
Vitenskapelig Kapittel/Artikkel/Konferanseartikkel
-
Nencioni, Gianfranco;
Helvik, Bjarne Emil;
Gonzalez, Andres Javier;
Heegaard, Poul Einar;
Kamisinski, Andrzej.
(2016)
Availability Modelling of Software-Defined Backbone Networks.
IEEE Press
Vitenskapelig Kapittel/Artikkel/Konferanseartikkel
-
Heegaard, Poul Einar;
Helvik, Bjarne Emil;
Nencioni, Gianfranco;
Wäfler, Jonas.
(2016)
Managed Dependability in Interacting Systems.
Springer
Vitenskapelig Kapittel/Artikkel/Konferanseartikkel
-
Ammar, Doreid;
De Moor, Katrien;
Heegaard, Poul Einar.
(2016)
Quality of Experience-assessment of WebRTC based video communication
.
ERCIM News
Populærvitenskapelig artikkel
-
Bartnes, Maria;
Moe, Nils Brede;
Heegaard, Poul Einar.
(2016)
The future of information security incident management training: A case study of electrical power companies.
Computers & Security
Vitenskapelig artikkel
-
Hu, Chengchen;
Li, Hao;
Jiang, Yuming;
Cheng, Yu;
Heegaard, Poul Einar.
(2016)
Deep Semantics Inspection over Big Network Data at Wire Speed.
IEEE Network
Vitenskapelig artikkel
-
Hossfeld, Tobias;
Heegaard, Poul Einar;
Varela, Martin;
Möller, Sebastian.
(2016)
QoE Beyond the MOS: An In-Depth Look at QoE via Better Metrics and their Relation to MOS.
Quality and User Experience
Vitenskapelig artikkel
-
Ammar, Doreid;
De Moor, Katrien;
Xie, Min;
Fiedler, Markus;
Heegaard, Poul Einar.
(2016)
Video QoE killer and performance statistics in WebRTC-based video communication.
IEEE conference proceedings
Vitenskapelig Kapittel/Artikkel/Konferanseartikkel
-
Heegaard, Poul Einar;
Biczok, Gergely;
Toka, Lazio.
(2016)
Sharing is Power: Incentives for Information Exchange in Multi-Operator Service Delivery.
IEEE Press
Vitenskapelig Kapittel/Artikkel/Konferanseartikkel
-
Sieber, Christian;
Heegaard, Poul Einar;
Hoßfeld, Tobias;
Kellerer, Wolfgang.
(2016)
Sacrificing efficiency for quality of experience: YouTube's redundant traffic behavior.
IEEE (Institute of Electrical and Electronics Engineers)
Vitenskapelig Kapittel/Artikkel/Konferanseartikkel
-
Mas Machuca, Carmen;
Secci, Stefano;
Vizerrata, Petra;
Kuipers, Fernando;
Gouglidis, Antonios;
Hutchison, David.
(2016)
Technology-related Disasters: A Survey towards Disaster-resilient Software Defined Networks.
IEEE Sarnoff Symposium
Vitenskapelig Kapittel/Artikkel/Konferanseartikkel
2015
-
Sand, Kjell;
Heegaard, Poul Einar.
(2015)
Next Generation Control Centres - State of art and future scenarios. Version 2.0.
Norges Teknisk Naturvitenskapelige Universitet
Rapport
-
Wäfler, Jonas;
Heegaard, Poul Einar.
(2015)
Interdependency in Smart Grid Recovery.
IEEE (Institute of Electrical and Electronics Engineers)
Vitenskapelig Kapittel/Artikkel/Konferanseartikkel
-
Heegaard, Poul Einar;
Helvik, Bjarne Emil;
Trivedi, Kishor;
Machida, Fumio.
(2015)
Survivability as a Generalization of Recovery.
IEEE (Institute of Electrical and Electronics Engineers)
Vitenskapelig Kapittel/Artikkel/Konferanseartikkel
-
Hossfeld, Tobias;
Heegaard, Poul Einar;
Varela, Martin.
(2015)
QoE beyond the MOS: Added value using quantiles and distributions.
IEEE conference proceedings
Vitenskapelig Kapittel/Artikkel/Konferanseartikkel
-
Østrem, Trond;
Bolkesjø, Torjus Folsland;
Rong, Chunming;
Wolff, Robert;
Sand, Kjell;
Mathisen, Geir.
(2015)
Norwegian Smart Grid Research Strategy.
The Scientific Committee of the Norwegian Smart Grid Centre
Rapport
-
Heegaard, Poul Einar;
Helvik, Bjarne Emil;
Mendiratta, Veena.
(2015)
Achieving Dependability in Software-Defined Networking - A Perspective.
IEEE (Institute of Electrical and Electronics Engineers)
Vitenskapelig Kapittel/Artikkel/Konferanseartikkel
-
Gonzalez, Andres Javier;
Grønsund, Pål R.;
Mahmood, Kashif;
Helvik, Bjarne Emil;
Heegaard, Poul Einar;
Nencioni, Gianfranco.
(2015)
Service availability in the NFV Virtualized Evolved Packet Core.
IEEE Press
Vitenskapelig Kapittel/Artikkel/Konferanseartikkel
-
Wäfler, Jonas;
Heegaard, Poul Einar.
(2015)
How to use mobile communication in critical infrastructures: A dependability analysis.
Lecture Notes in Computer Science (LNCS)
Vitenskapelig artikkel
-
Zerihun, Tesfaye Amare;
Helvik, Bjarne Emil;
Heegaard, Poul Einar;
Krogstie, John.
(2015)
Quantitative Modelling of Digital Ecosystems.
ERCIM News
Short communication
-
Khan, Razib Hayat;
Heegaard, Poul Einar.
(2015)
Software Performance Evaluation Utilizing UML Specification and SRN Model and Their Formal Representation.
Journal of Software
Vitenskapelig artikkel
-
Wäfler, Jonas;
Heegaard, Poul Einar.
(2015)
Consequences of Increased Automation in Smart Grids.
ERCIM News
Short communication
2014
-
Wäfler, Jonas;
Heegaard, Poul Einar.
(2014)
Quantifying Influence of Strategies and Network Properties in Repairing Simultaneous Failures in Smart Grid.
NIKT: Norsk IKT-konferanse for forskning og utdanning
Vitenskapelig artikkel
2013
-
Wäfler, Jonas;
Heegaard, Poul Einar.
(2013)
A Combined Structural and Dynamic Modelling Approach for Dependability Analysis in Smart Grid.
Association for Computing Machinery (ACM)
Vitenskapelig Kapittel/Artikkel/Konferanseartikkel
-
Wäfler, Jonas;
Heegaard, Poul Einar.
(2013)
Structural Dependability Analysis in Smart Grid under Simultaneous Failures.
IEEE Press
Vitenskapelig Kapittel/Artikkel/Konferanseartikkel
-
Villa, Bjørn Jonny;
De Moor, Katrien;
Heegaard, Poul Einar;
Instefjord, Anders.
(2013)
Investigating Quality of Experience in the context of adaptive video streaming: findings from an experimental user study.
Akademika forlag
Vitenskapelig Kapittel/Artikkel/Konferanseartikkel
-
Xie, Lang;
Heegaard, Poul Einar;
Jiang, Yuming.
(2013)
Modeling and Quantifying the Survivability of Telecommunication Network Systems under Fault Propagation.
Lecture Notes in Computer Science (LNCS)
Vitenskapelig artikkel
-
Xie, Lang;
Jiang, Yuming;
Heegaard, Poul Einar.
(2013)
Modelling and Analysis of the Survivability of Telecommunication Networks.
IEEE Press
Vitenskapelig Kapittel/Artikkel/Konferanseartikkel
-
Gullhav, Anders N.;
Nygreen, Bjørn;
Heegaard, Poul Einar.
(2013)
Approximating the Response Time Distribution of Fault-tolerant Multi-tier Cloud Services.
IEEE (Institute of Electrical and Electronics Engineers)
Vitenskapelig Kapittel/Artikkel/Konferanseartikkel
-
Villa, Bjørn Jonny;
Heegaard, Poul Einar.
(2013)
Estimating Available Bandwidth on Access Links by Means of Stratified Probing.
International Journal of Electrical Energy
Vitenskapelig artikkel
-
Villa, Bjørn Jonny;
Heegaard, Poul Einar.
(2013)
A Measurement Study of Active Probing on Access Links.
Springer Publishing Company
Vitenskapelig Kapittel/Artikkel/Konferanseartikkel
-
Wäfler, Jonas;
Heegaard, Poul Einar.
(2013)
Interdependency Modeling in Smart Grid and the Influence of ICT on Dependability.
Lecture Notes in Computer Science (LNCS)
Vitenskapelig artikkel
-
Xie, Lang;
Heegaard, Poul Einar;
Jiang, Yuming.
(2013)
Network Survivability under Disaster Propagation: Modeling and Analysis.
IEEE Wireless Communications and Networking Conference
Vitenskapelig artikkel
-
Villa, Bjørn Jonny;
Heegaard, Poul Einar.
(2013)
Detecting Period and Burst Durations in Video Streaming by means of Active Probing.
International Journal of Computer and Communication Engineering
Vitenskapelig artikkel
-
Villa, Bjørn Jonny;
Heegaard, Poul Einar.
(2013)
Group Based Traffic Shaping for Adaptive HTTP Video Streaming.
IEEE (Institute of Electrical and Electronics Engineers)
Vitenskapelig Kapittel/Artikkel/Konferanseartikkel
2012
-
Khan, Razib Hayat;
Heegaard, Poul Einar;
Wali Ullah, Kazi.
(2012)
Performance Evaluation of Distributed System Using SPN.
IntechOpen
Vitenskapelig Kapittel/Artikkel/Konferanseartikkel
-
Villa, Bjørn Jonny;
Heegaard, Poul Einar.
(2012)
Improving Fairness in QoS and QoE domains for Adaptive Video Streaming.
International Journal On Advances in Networks and Services
Vitenskapelig artikkel
-
Xie, Lang;
Heegaard, Poul Einar;
Jiang, Yuming.
(2012)
Modeling and Analysis of the Survivability of an Infrastructure-Based Wireless Network.
Lecture Notes in Computer Science (LNCS)
Vitenskapelig artikkel
-
Villa, Bjørn Jonny;
Heegaard, Poul Einar.
(2012)
Improving Perceived Fairness and QoE for Adaptive Video Streams.
International Academy, Research and Industry Association (IARIA)
Vitenskapelig Kapittel/Artikkel/Konferanseartikkel
-
Chilwan, Ameen;
Undheim, Astrid;
Heegaard, Poul Einar.
(2012)
Effects of Dynamic Cloud Cluster Load on Differentiated Service Availability.
International Conference on Data Networks, Communications, Computers - Proceedings
Vitenskapelig artikkel
-
Kuipers, Fernando;
Heegaard, Poul Einar.
(2012)
Self-organizing systems : 6th International Workshop IWSOS 2012.
Springer
Lecture Notes in Computer Science (LNCS) (7166)
Vitenskapelig antologi/Konferanseserie
-
Khan, Razib Hayat;
Heegaard, Poul Einar;
Machida, Fumio;
Trivedi, Kishor.
(2012)
A performability modeling framework considering service components deployment.
International Journal On Advances in Networks and Services
Vitenskapelig artikkel
-
Villa, Bjørn Jonny;
Heegaard, Poul Einar;
Instefjord, Anders.
(2012)
Improving Fairness for Adaptive HTTP Video Streaming.
Springer
Vitenskapelig Kapittel/Artikkel/Konferanseartikkel
2011
-
Villa, Bjørn Jonny;
Heegaard, Poul Einar.
(2011)
Towards Knowledge-driven QoE Optimization in Home Gateways.
International Academy, Research and Industry Association (IARIA)
Vitenskapelig Kapittel/Artikkel/Konferanseartikkel
-
Csorba, Mate Jozsef;
Meling, Hein;
Heegaard, Poul Einar.
(2011)
A Bio-inspired Method for Distributed Deployment of Services.
New generation computing
Vitenskapelig artikkel
-
Villa, Bjørn Jonny;
Heegaard, Poul Einar.
(2011)
A Monitor Plane Component for Adaptive Video Streaming.
NIKT: Norsk IKT-konferanse for forskning og utdanning
Vitenskapelig artikkel
-
Csorba, Mate Jozsef;
Heegaard, Poul Einar;
Herrmann, Peter Michael.
(2011)
Cost-Efficient Deployment of Distributed Software Services.
Doktoravhandlinger ved NTNU (2011:122)
Doktorgradsavhandling
-
Khan, Razib Hayat;
Heegaard, Poul Einar.
(2011)
A performance modeling framework incorporating service components deployment issue.
International Proceedings of Computer Science and Information Technology
Vitenskapelig artikkel
-
Khan, Razib Hayat;
Heegaard, Poul Einar.
(2011)
Derivation of Stochastic Reward Net (SRN) from UML Specification Considering Cost Efficient Deployment Management of Collaborative Service Components.
International Journal of New Computer Architectures and their Applications (IJNCAA)
Vitenskapelig artikkel
-
Undheim, Astrid;
Chilwan, Ameen;
Heegaard, Poul Einar.
(2011)
Differentiated Availability in Cloud Computing SLAs.
IEEE (Institute of Electrical and Electronics Engineers)
Vitenskapelig Kapittel/Artikkel/Konferanseartikkel
-
Khan, Razib Hayat;
Heegaard, Poul Einar.
(2011)
A performance modeling framework incorporating cost efficient deployment of multiple collaborating components.
Communications in Computer and Information Science (CCIS)
Vitenskapelig artikkel
2010
-
Khan, Razib Hayat;
Heegaard, Poul Einar.
(2010)
Translation from UML to SPN model: A performance modeling framework.
Lecture Notes in Computer Science (LNCS)
Vitenskapelig artikkel
-
Brugge, Jonathan;
Paquereau, Laurent;
Heegaard, Poul Einar.
(2010)
Experience Report on Implementing and Simulating a Routing Protocol in NS-2 and NS-3.
IEEE (Institute of Electrical and Electronics Engineers)
Vitenskapelig Kapittel/Artikkel/Konferanseartikkel
-
Csorba, Mate Jozsef;
Heegaard, Poul Einar;
Herrmann, Peter.
(2010)
Component Deployment Using Parallel Ant-nests.
International Journal of Autonomous and Adaptive Communications Systems
Vitenskapelig artikkel
-
Heegaard, Poul Einar;
Wittner, Otto.
(2010)
Overhead Reduction in Distributed Path Management System.
Computer Networks
Vitenskapelig artikkel
-
Ofigsbø, Mona Holsve;
Mjølsnes, Stig Frode;
Heegaard, Poul Einar;
Nilsen, Leif.
(2010)
Reducing the Cost of Certificate Revocation: A Case Study.
Lecture Notes in Computer Science (LNCS)
Vitenskapelig artikkel
-
Csorba, Mate Jozsef;
Meling, Hein;
Heegaard, Poul Einar.
(2010)
Ant system for service development in private and public clouds.
Association for Computing Machinery (ACM)
Vitenskapelig Kapittel/Artikkel/Konferanseartikkel
-
Csorba, Mate Jozsef;
Heegaard, Poul Einar.
(2010)
Optimization and Service Deployment in Private and Public Clouds.
ERCIM News
Vitenskapelig artikkel
-
Csorba, Mate Jozsef;
Heegaard, Poul Einar.
(2010)
Swarm Intelligence Heuristics for Component Deployment.
Lecture Notes in Computer Science (LNCS)
Vitenskapelig artikkel
-
Xie, Lang;
Heegaard, Poul Einar;
Zhang, Jin;
Xiang, Jie.
(2010)
System State aware Admission Control scheme for IEEE 802.16 WiMAX-based healthcare system.
ACM Publications
Annet
-
Villa, Bjørn Jonny;
Heegaard, Poul Einar.
(2010)
Monitoring and control of QoE in media streams by click software router.
Tapir Akademisk Forlag
Vitenskapelig Kapittel/Artikkel/Konferanseartikkel
2009
-
Østhus, Ivar Conradi;
Hansen, Lars-Petter Gunhildsberg;
Heegaard, Poul Einar.
(2009)
Online Broadband Test Tools.
Tapir Akademisk Forlag
Vitenskapelig Kapittel/Artikkel/Konferanseartikkel
-
Csorba, Mate Jozsef;
Heegaard, Poul Einar;
Meling, Hein.
(2009)
Laying pheromone trails for balanced and dependable component mappings.
Lecture Notes in Computer Science (LNCS)
Vitenskapelig artikkel
-
Csorba, Mate Jozsef;
Meling, Hein;
Heegaard, Poul Einar.
(2009)
Laying Pheromone Trails for Balanced and Dependable Component Mappings.
Abstrakt forlag
Vitenskapelig Kapittel/Artikkel/Konferanseartikkel
-
Csorba, Mate Jozsef;
Meling, Hein;
Heegaard, Poul Einar;
Herrmann, Peter.
(2009)
Foraging for Better Deployment of Replicated Service Components.
Springer
Vitenskapelig Kapittel/Artikkel/Konferanseartikkel
-
Heegaard, Poul Einar;
Sandmann, Werner.
(2009)
Importance Sampling Simulations of Phase-Type Queues.
Winter simulation conference : proceedings
Vitenskapelig artikkel
-
Heegaard, Poul Einar;
Trivedi, Kishor.
(2009)
Survivability Modeling with Stochastic Reward Nets.
Winter simulation conference : proceedings
Vitenskapelig artikkel
-
Heegaard, Poul Einar;
Trivedi, Kishor.
(2009)
Network survivability modeling.
Computer Networks
Vitenskapelig artikkel
-
Csorba, Mate Jozsef;
Meling, Hein;
Heegaard, Poul Einar;
Herrmann, Peter.
(2009)
Foraging for Better Deployment of Replicated Service Components.
Lecture Notes in Computer Science (LNCS)
Vitenskapelig artikkel
2008
-
Csorba, Mate Jozsef;
Heegaard, Poul Einar;
Herrmann, Peter.
(2008)
Adaptable Model-based Component Deployment Guided by Artificial Ants.
Association for Computing Machinery (ACM)
Annet
-
Kjeldsen, Vebjørn;
Wittner, Otto Jonassen;
Heegaard, Poul Einar.
(2008)
Distributed and Scalable Path Management by a System of Cooperating Ants.
CSREA Press
Vitenskapelig Kapittel/Artikkel/Konferanseartikkel
-
Heegaard, Poul Einar;
Trivedi, Kishor.
(2008)
Survivability Quantification of Communication Services.
Vitenskapelig Kapittel/Artikkel/Konferanseartikkel
-
Heegaard, Poul Einar;
Trivedi, Kishor.
(2008)
Survivability in Real-sized Networks Quantified by Analytical Delay Distributions.
IEEE (Institute of Electrical and Electronics Engineers)
Vitenskapelig Kapittel/Artikkel/Konferanseartikkel
-
Csorba, Mate Jozsef;
Heegaard, Poul Einar;
Herrmann, Peter.
(2008)
Cost-Efficient Deployment of Collaborating Components.
Lecture Notes in Computer Science (LNCS)
Vitenskapelig artikkel
-
Heegaard, Poul Einar.
(2008)
Empirical Data from Mobile and IP Telephony.
Journal of Communication Software and Systems
Vitenskapelig artikkel
-
Heegaard, Poul Einar;
Helvik, Bjarne Emil;
Wittner, Otto Jonassen.
(2008)
The Cross Entropy Ant System for Network Path Management.
Telektronikk
Vitenskapelig artikkel
2007
-
Emstad, Peder Johannes;
Heegaard, Poul Einar;
Helvik, Bjarne Emil;
Paquereau, Laurent.
(2007)
Dependability and performance with discrete event simulation.
Tapir Akademisk Forlag
Tapir Akademisk Forlag
Kompendium
-
Stray, Petter;
Jelle, Thomas;
Heegaard, Poul Einar.
(2007)
Field Test of Mobile Wi-Fi Terminals in a Wireless City.
Tapir Akademisk Forlag
Vitenskapelig Kapittel/Artikkel/Konferanseartikkel
-
Heegaard, Poul Einar;
Sandmann, Werner.
(2007)
Ant-based Approach for Determining the Change of Measure in Importance Sampling.
Vitenskapelig Kapittel/Artikkel/Konferanseartikkel
-
Tjora, Åsmund;
Skavhaug, Amund;
Heegaard, Poul Einar.
(2007)
A Mathematical Model for Run-Time Distributions in a Fault Tolerant System with Nonhomogeneous Passive Replicas.
Vitenskapelig Kapittel/Artikkel/Konferanseartikkel
-
Heegaard, Poul Einar.
(2007)
Empirical Observations of Traffic Patterns in Mobile and IP Telephony.
Springer
Vitenskapelig Kapittel/Artikkel/Konferanseartikkel
-
Heegaard, Poul Einar;
Sandmann, Werner.
(2007)
Efficient Estimation of Loss Rates in Optical Packet Switched Networks with Wavelength Conversion.
IEEE (Institute of Electrical and Electronics Engineers)
Vitenskapelig Kapittel/Artikkel/Konferanseartikkel
-
Heegaard, Poul Einar;
Sandmann, Werner.
(2007)
Evaluating Differentiated Quality of Service Parameters in Optical Packet Switching.
Springer
Vitenskapelig Kapittel/Artikkel/Konferanseartikkel
-
Heegaard, Poul Einar.
(2007)
Evolution of Traffic Patterns in Telecommunication Systems.
IEEE conference proceedings
Vitenskapelig Kapittel/Artikkel/Konferanseartikkel
-
Bjørndalen, John Markus;
Haugland, Dag;
Heegaard, Poul Einar;
Løkketangen, Arne;
Møller-Pedersen, Birger;
Rong, Chunming.
(2007)
NIK 2007.
Tapir Akademisk Forlag
Tapir Akademisk Forlag
Vitenskapelig antologi/Konferanseserie
2006
-
Heegaard, Poul Einar;
Fuglem, Ingebrigt.
(2006)
Demonstrating ant-based monitoring on software IP routers (Deliverable 14).
BISON project
Rapport
-
Heegaard, Poul Einar;
Wittner, Otto Jonassen.
(2006)
Self-tuned Refresh Rate in a Swarm Intelligence Path Management System.
Lecture Notes in Computer Science (LNCS)
Vitenskapelig artikkel
-
Heegaard, Poul Einar;
Wittner, Otto Jonassen.
(2006)
Restoration performance vs. overhead in a swarm intelligence path management system.
Lecture Notes in Computer Science (LNCS)
Vitenskapelig artikkel
2005
-
Paquereau, Laurent;
Viken, Brynjar;
Heegaard, Poul Einar.
(2005)
Combining performance monitoring and location data in wireless networks.
Tapir Akademisk Forlag
Vitenskapelig Kapittel/Artikkel/Konferanseartikkel
-
Heegaard, Poul Einar;
Helvik, Bjarne Emil;
Andreassen, Ragnar.
(2005)
Application of Rare Event Techniques to Trace Driven Simulation.
Vitenskapelig Kapittel/Artikkel/Konferanseartikkel
-
Heegaard, Poul Einar;
Wittner, Otto;
Helvik, Bjarne Emil.
(2005)
Self-managed virtual path management in dynamic networks.
Lecture Notes in Computer Science (LNCS)
Vitenskapelig artikkel
-
Heegaard, Poul Einar;
Wittner, Otto;
Helvik, Bjarne Emil.
(2005)
Self-management of virtual paths in dynamic networks.
Lecture Notes in Computer Science (LNCS)
Vitenskapelig artikkel
2004
-
Emstad, Peder Johannes;
Heegaard, Poul Einar;
Helvik, Bjarne Emil.
(2004)
Pålitelighet og ytelse i informasjons- og kommunikasjonssystem - Grunnlag.
Tapir Akademisk Forlag
Tapir Akademisk Forlag
Kompendium
-
Heegaard, Poul Einar.
(2004)
Evaluation of basic services in AHN, P2P and Grid networks (Deliverable 07).
BISON project
Rapport
-
Heegaard, Poul Einar.
(2004)
Implementation of basic services in AHN, P2P and Grid networks (Deliverable 06).
BISON project
Rapport
-
Heegaard, Poul Einar.
(2004)
Evaluation plan (Deliverable 04).
BISON project
Rapport
-
Heegaard, Poul Einar.
(2004)
Models for Basic Services in AHN, P2P Networks (Deliverable 05).
BISON project
Rapport
2002
-
Wittner, Otto;
Heegaard, Poul Einar;
Helvik, Bjarne Emil.
(2002)
Swarm Based Distributed Search in the AMIGOS Environment.
AVANTEL Technical Report
Rapport
2001
-
Görg, Carmelita;
Lamers, Eugen;
Fuß, Oliver;
Heegaard, Poul Einar.
(2001)
Rare Event Simulation.
Vitenskapelig Kapittel/Artikkel/Konferanseartikkel
-
Viken, Brynjar Åge;
Heegaard, Poul Einar.
(2001)
GenSyn - Generator of synthetic Internet traffic.
Network Analysis Times Publisher: National Laboratory for Applied Network Research/Measurement and Operations Analysis Team
Populærvitenskapelig artikkel
-
Viken, Brynjar Åge;
Heegaard, Poul Einar.
(2001)
A Distributed Test Environment for IP Performance.
Telektronikk
Populærvitenskapelig artikkel
1999
-
Emstad, Peder Johannes;
Heegaard, Poul Einar;
Helvik, Bjarne Emil.
(1999)
Pålitelighet og ytelse i informasjons- og kommunikasjonssystem. Grunnlag.
Institutt for telematikk, NTNU
Kompendium
1998
-
Heegaard, Poul Einar.
(1998)
Efficient simulation of network performance by importance sampling.
Doktor ingeniøravhandling (1998:33)
Doktorgradsavhandling
-
Heegaard, Poul Einar.
(1998)
A scheme for adaptive biasing in importance sampling.
AEU - International Journal of Electronics and Communications
Vitenskapelig artikkel
Tidsskriftspublikasjoner
-
Ystgaard, Kaja Fjørtoft;
Atzori, Luigi;
Palma, David;
Heegaard, Poul Einar;
Bertheussen, Lene Elisabeth;
Jensen, Magnus Rom.
(2023)
Review of the theory, principles, and design requirements of human-centric Internet of Things (IoT).
Journal of Ambient Intelligence and Humanized Computing
Vitenskapelig artikkel
-
Hossfeld, Tobias;
Varela, Martin;
Skorin-Kapov, Lea;
Heegaard, Poul Einar.
(2023)
A Greener Experience: Trade-Offs between QoE and CO<inf>2</inf> Emissions in Today's and 6G Networks.
IEEE Communications Magazine
Vitenskapelig artikkel
-
Hossfeld, Tobias;
Heegaard, Poul Einar;
Kellerer, Wolfgang.
(2023)
Comparing the Scalability of Communication Networks and Systems.
IEEE Access
Vitenskapelig artikkel
-
Hoßfeld, Tobias;
Heegaard, Poul Einar;
Varela, Martin;
Jarchel, Michael.
(2022)
User-Centric Markov Reward Model on the Example of Cloud Gaming.
IEEE Xplore Digital Library
Vitenskapelig artikkel
-
Hoßfeld, Tobias;
Varela, Martin;
Skorin-Kapov, Lea;
Heegaard, Poul Einar.
(2022)
What is the trade-off between CO2 emission and video-conferencing QoE? .
SIGMM Records
Vitenskapelig artikkel
-
Myhre, Stine Fleischer;
Fosso, Olav B;
Heegaard, Poul Einar;
Gjerde, Oddbjørn.
(2022)
RELSAD: A Python package for reliability assessment of modern distribution systems.
Journal of Open Source Software (JOSS)
Vitenskapelig artikkel
-
Rak, Jacek;
Heegaard, Poul Einar;
Helvik, Bjarne Emil.
(2020)
Resilience of communication networks to random failures and disasters: An optimization perspective.
Networks
Vitenskapelig artikkel
-
Barani, Mostafa;
Vadlamudi, Vijay Venu;
Heegaard, Poul Einar.
(2020)
Reliability analysis of cyber‐physical microgrids: Study of grid‐connected microgrids with communication‐based control systems.
IET Generation, Transmission & Distribution
Vitenskapelig artikkel
-
Adrah, Charles Mawutor;
Palma, David;
Kure, Øivind;
Heegaard, Poul Einar.
(2020)
A network design algorithm for multicast communication architectures in smart transmission grids.
Electric power systems research
Vitenskapelig artikkel
-
Hossfeld, Tobias;
Heegaard, Poul Einar;
Skorin-Kapov, Lea;
Varela, Martin.
(2020)
Deriving QoE in systems: from fundamental relationships to a QoE-based Service-level Quality Index.
Quality and User Experience
Vitenskapelig artikkel
-
Mendis, Handunneththi V. Kalpanie;
Heegaard, Poul Einar;
Kralevska, Katina.
(2019)
5G Network Slicing as an Enabler for Smart Distribution Grid Operations.
CIRED Conference Proceedings
Vitenskapelig artikkel
-
Hossfeld, Tobias;
Heegaard, Poul Einar;
Skorin-Kapov, Lea;
Varela, Martin.
(2019)
On System QoE: Merging the system and the QoE perspectives.
SIGMM Records
Vitenskapelig artikkel
-
Rak, Jacek;
Heegaard, Poul Einar;
Helvik, Bjarne Emil.
(2019)
Highlights from RNDM 2018 – 10th Anniversary Workshop on Resilient Networks Design and Modeling.
IEEE Communications Magazine
Sammendrag/abstract
-
Metzger, Florian;
Hossfeld, Tobias;
Bauer, André;
Kounev, Samuel;
Heegaard, Poul Einar.
(2019)
Modeling of Aggregated IoT Traffic and Its Application to an IoT Cloud.
Proceedings of the IEEE
Vitenskapelig artikkel
-
Adrah, Charles Mawutor;
Yellajosula, Jaya R. A. K.;
Kure, Øivind;
Palma, David;
Heegaard, Poul Einar.
(2019)
An IP Multicast Framework for Routable Sample Value Communication in Transmission Grids.
Journal of Communications
Vitenskapelig artikkel
-
Hoßfeld, Tobias;
Varela, Martin;
Heegaard, Poul Einar;
Skorin-Kapov, Lea.
(2018)
QoE Analysis of the Setup of Different Internet Services for FIFO Server Systems.
Lecture Notes in Computer Science (LNCS)
Vitenskapelig artikkel
-
Ammar, Doreid;
De Moor, Katrien;
Heegaard, Poul Einar.
(2018)
An Experimental Platform for QoE Studies of WebRTC-based Multi-Party Video Communication.
International Journal of New Computer Architectures and their Applications (IJNCAA)
Vitenskapelig artikkel
-
Hossfeld, Tobias;
Skorin-Kapov, Lea;
Heegaard, Poul Einar;
Varela, Martin.
(2018)
A new QoE fairness index for QoE management
.
Quality and User Experience
Vitenskapelig artikkel
-
Xie, Lang;
Heegaard, Poul Einar;
Jiang, Yuming.
(2018)
Non-Markovian Survivability Assessment Model for Infrastructure Wireless Networks.
Proceedings of the International Symposium on Wireless Communication Systems
Vitenskapelig artikkel
-
Oostenbrink, Jorik;
Kuipers, Fernando;
Heegaard, Poul Einar;
Helvik, Bjarne Emil.
(2018)
Evaluating Local Disaster Recovery Strategies.
Performance Evaluation Review
Vitenskapelig artikkel
-
Vizarreta, Petra;
Trivedi, Kishor;
Helvik, Bjarne Emil;
Heegaard, Poul Einar;
Blenk, Andreas;
Kellerer, Wolfgang.
(2018)
Assessing the Maturity of SDN Controllers with Software Reliability Growth Models.
IEEE Transactions on Network and Service Management
Vitenskapelig artikkel
-
Gonzalez, Andres Javier;
Nencioni, Gianfranco;
Kamisinski, Andrzej;
Helvik, Bjarne Emil;
Heegaard, Poul Einar.
(2018)
Dependability of the NFV Orchestrator: State of the Art and Research Challenges.
IEEE Communications Surveys and Tutorials
Vitenskapelig artikkel
-
Xie, Lang;
Heegaard, Poul Einar;
Jiang, Yuming.
(2017)
Survivability analysis of a two-tier infrastructure-based wireless network.
Computer Networks
Vitenskapelig artikkel
-
Biczok, Gergely;
Dramitinos, Manos;
Toka, Lazio;
Heegaard, Poul Einar;
Lønsethagen, Håkon.
(2017)
Manufactured by software: SDN-enabled multi-operator composite services with the 5G Exchange.
IEEE Communications Magazine
Vitenskapelig artikkel
-
Nencioni, Gianfranco;
Helvik, Bjarne Emil;
Heegaard, Poul Einar.
(2017)
Including Failure Correlation in Availability Modeling of a Software-Defined Backbone Network.
IEEE Transactions on Network and Service Management
Vitenskapelig artikkel
-
Hossfeld, Tobias;
Skorin-Kapov, Lea;
Heegaard, Poul Einar;
Varela, Martin.
(2017)
Definition of QoE Fairness in Shared Systems.
IEEE Communications Letters
Vitenskapelig artikkel
-
Gullhav, Anders Nordby;
Nygreen, Bjørn;
Heegaard, Poul Einar.
(2017)
Simulation of the response time distribution of fault-tolerant multi-tier cloud services.
Journal of Simulation
Vitenskapelig artikkel
-
Ammar, Doreid;
De Moor, Katrien;
Heegaard, Poul Einar.
(2016)
Quality of Experience-assessment of WebRTC based video communication
.
ERCIM News
Populærvitenskapelig artikkel
-
Bartnes, Maria;
Moe, Nils Brede;
Heegaard, Poul Einar.
(2016)
The future of information security incident management training: A case study of electrical power companies.
Computers & Security
Vitenskapelig artikkel
-
Hu, Chengchen;
Li, Hao;
Jiang, Yuming;
Cheng, Yu;
Heegaard, Poul Einar.
(2016)
Deep Semantics Inspection over Big Network Data at Wire Speed.
IEEE Network
Vitenskapelig artikkel
-
Hossfeld, Tobias;
Heegaard, Poul Einar;
Varela, Martin;
Möller, Sebastian.
(2016)
QoE Beyond the MOS: An In-Depth Look at QoE via Better Metrics and their Relation to MOS.
Quality and User Experience
Vitenskapelig artikkel
-
Wäfler, Jonas;
Heegaard, Poul Einar.
(2015)
How to use mobile communication in critical infrastructures: A dependability analysis.
Lecture Notes in Computer Science (LNCS)
Vitenskapelig artikkel
-
Zerihun, Tesfaye Amare;
Helvik, Bjarne Emil;
Heegaard, Poul Einar;
Krogstie, John.
(2015)
Quantitative Modelling of Digital Ecosystems.
ERCIM News
Short communication
-
Khan, Razib Hayat;
Heegaard, Poul Einar.
(2015)
Software Performance Evaluation Utilizing UML Specification and SRN Model and Their Formal Representation.
Journal of Software
Vitenskapelig artikkel
-
Wäfler, Jonas;
Heegaard, Poul Einar.
(2015)
Consequences of Increased Automation in Smart Grids.
ERCIM News
Short communication
-
Wäfler, Jonas;
Heegaard, Poul Einar.
(2014)
Quantifying Influence of Strategies and Network Properties in Repairing Simultaneous Failures in Smart Grid.
NIKT: Norsk IKT-konferanse for forskning og utdanning
Vitenskapelig artikkel
-
Xie, Lang;
Heegaard, Poul Einar;
Jiang, Yuming.
(2013)
Modeling and Quantifying the Survivability of Telecommunication Network Systems under Fault Propagation.
Lecture Notes in Computer Science (LNCS)
Vitenskapelig artikkel
-
Villa, Bjørn Jonny;
Heegaard, Poul Einar.
(2013)
Estimating Available Bandwidth on Access Links by Means of Stratified Probing.
International Journal of Electrical Energy
Vitenskapelig artikkel
-
Wäfler, Jonas;
Heegaard, Poul Einar.
(2013)
Interdependency Modeling in Smart Grid and the Influence of ICT on Dependability.
Lecture Notes in Computer Science (LNCS)
Vitenskapelig artikkel
-
Xie, Lang;
Heegaard, Poul Einar;
Jiang, Yuming.
(2013)
Network Survivability under Disaster Propagation: Modeling and Analysis.
IEEE Wireless Communications and Networking Conference
Vitenskapelig artikkel
-
Villa, Bjørn Jonny;
Heegaard, Poul Einar.
(2013)
Detecting Period and Burst Durations in Video Streaming by means of Active Probing.
International Journal of Computer and Communication Engineering
Vitenskapelig artikkel
-
Villa, Bjørn Jonny;
Heegaard, Poul Einar.
(2012)
Improving Fairness in QoS and QoE domains for Adaptive Video Streaming.
International Journal On Advances in Networks and Services
Vitenskapelig artikkel
-
Xie, Lang;
Heegaard, Poul Einar;
Jiang, Yuming.
(2012)
Modeling and Analysis of the Survivability of an Infrastructure-Based Wireless Network.
Lecture Notes in Computer Science (LNCS)
Vitenskapelig artikkel
-
Chilwan, Ameen;
Undheim, Astrid;
Heegaard, Poul Einar.
(2012)
Effects of Dynamic Cloud Cluster Load on Differentiated Service Availability.
International Conference on Data Networks, Communications, Computers - Proceedings
Vitenskapelig artikkel
-
Khan, Razib Hayat;
Heegaard, Poul Einar;
Machida, Fumio;
Trivedi, Kishor.
(2012)
A performability modeling framework considering service components deployment.
International Journal On Advances in Networks and Services
Vitenskapelig artikkel
-
Csorba, Mate Jozsef;
Meling, Hein;
Heegaard, Poul Einar.
(2011)
A Bio-inspired Method for Distributed Deployment of Services.
New generation computing
Vitenskapelig artikkel
-
Villa, Bjørn Jonny;
Heegaard, Poul Einar.
(2011)
A Monitor Plane Component for Adaptive Video Streaming.
NIKT: Norsk IKT-konferanse for forskning og utdanning
Vitenskapelig artikkel
-
Khan, Razib Hayat;
Heegaard, Poul Einar.
(2011)
A performance modeling framework incorporating service components deployment issue.
International Proceedings of Computer Science and Information Technology
Vitenskapelig artikkel
-
Khan, Razib Hayat;
Heegaard, Poul Einar.
(2011)
Derivation of Stochastic Reward Net (SRN) from UML Specification Considering Cost Efficient Deployment Management of Collaborative Service Components.
International Journal of New Computer Architectures and their Applications (IJNCAA)
Vitenskapelig artikkel
-
Khan, Razib Hayat;
Heegaard, Poul Einar.
(2011)
A performance modeling framework incorporating cost efficient deployment of multiple collaborating components.
Communications in Computer and Information Science (CCIS)
Vitenskapelig artikkel
-
Khan, Razib Hayat;
Heegaard, Poul Einar.
(2010)
Translation from UML to SPN model: A performance modeling framework.
Lecture Notes in Computer Science (LNCS)
Vitenskapelig artikkel
-
Csorba, Mate Jozsef;
Heegaard, Poul Einar;
Herrmann, Peter.
(2010)
Component Deployment Using Parallel Ant-nests.
International Journal of Autonomous and Adaptive Communications Systems
Vitenskapelig artikkel
-
Heegaard, Poul Einar;
Wittner, Otto.
(2010)
Overhead Reduction in Distributed Path Management System.
Computer Networks
Vitenskapelig artikkel
-
Ofigsbø, Mona Holsve;
Mjølsnes, Stig Frode;
Heegaard, Poul Einar;
Nilsen, Leif.
(2010)
Reducing the Cost of Certificate Revocation: A Case Study.
Lecture Notes in Computer Science (LNCS)
Vitenskapelig artikkel
-
Csorba, Mate Jozsef;
Heegaard, Poul Einar.
(2010)
Optimization and Service Deployment in Private and Public Clouds.
ERCIM News
Vitenskapelig artikkel
-
Csorba, Mate Jozsef;
Heegaard, Poul Einar.
(2010)
Swarm Intelligence Heuristics for Component Deployment.
Lecture Notes in Computer Science (LNCS)
Vitenskapelig artikkel
-
Csorba, Mate Jozsef;
Heegaard, Poul Einar;
Meling, Hein.
(2009)
Laying pheromone trails for balanced and dependable component mappings.
Lecture Notes in Computer Science (LNCS)
Vitenskapelig artikkel
-
Heegaard, Poul Einar;
Sandmann, Werner.
(2009)
Importance Sampling Simulations of Phase-Type Queues.
Winter simulation conference : proceedings
Vitenskapelig artikkel
-
Heegaard, Poul Einar;
Trivedi, Kishor.
(2009)
Survivability Modeling with Stochastic Reward Nets.
Winter simulation conference : proceedings
Vitenskapelig artikkel
-
Heegaard, Poul Einar;
Trivedi, Kishor.
(2009)
Network survivability modeling.
Computer Networks
Vitenskapelig artikkel
-
Csorba, Mate Jozsef;
Meling, Hein;
Heegaard, Poul Einar;
Herrmann, Peter.
(2009)
Foraging for Better Deployment of Replicated Service Components.
Lecture Notes in Computer Science (LNCS)
Vitenskapelig artikkel
-
Csorba, Mate Jozsef;
Heegaard, Poul Einar;
Herrmann, Peter.
(2008)
Cost-Efficient Deployment of Collaborating Components.
Lecture Notes in Computer Science (LNCS)
Vitenskapelig artikkel
-
Heegaard, Poul Einar.
(2008)
Empirical Data from Mobile and IP Telephony.
Journal of Communication Software and Systems
Vitenskapelig artikkel
-
Heegaard, Poul Einar;
Helvik, Bjarne Emil;
Wittner, Otto Jonassen.
(2008)
The Cross Entropy Ant System for Network Path Management.
Telektronikk
Vitenskapelig artikkel
-
Heegaard, Poul Einar;
Wittner, Otto Jonassen.
(2006)
Self-tuned Refresh Rate in a Swarm Intelligence Path Management System.
Lecture Notes in Computer Science (LNCS)
Vitenskapelig artikkel
-
Heegaard, Poul Einar;
Wittner, Otto Jonassen.
(2006)
Restoration performance vs. overhead in a swarm intelligence path management system.
Lecture Notes in Computer Science (LNCS)
Vitenskapelig artikkel
-
Heegaard, Poul Einar;
Wittner, Otto;
Helvik, Bjarne Emil.
(2005)
Self-managed virtual path management in dynamic networks.
Lecture Notes in Computer Science (LNCS)
Vitenskapelig artikkel
-
Heegaard, Poul Einar;
Wittner, Otto;
Helvik, Bjarne Emil.
(2005)
Self-management of virtual paths in dynamic networks.
Lecture Notes in Computer Science (LNCS)
Vitenskapelig artikkel
-
Viken, Brynjar Åge;
Heegaard, Poul Einar.
(2001)
GenSyn - Generator of synthetic Internet traffic.
Network Analysis Times Publisher: National Laboratory for Applied Network Research/Measurement and Operations Analysis Team
Populærvitenskapelig artikkel
-
Viken, Brynjar Åge;
Heegaard, Poul Einar.
(2001)
A Distributed Test Environment for IP Performance.
Telektronikk
Populærvitenskapelig artikkel
-
Heegaard, Poul Einar.
(1998)
A scheme for adaptive biasing in importance sampling.
AEU - International Journal of Electronics and Communications
Vitenskapelig artikkel
Bøker
-
Heegaard, Poul Einar;
Helvik, Bjarne Emil;
Rak, Jacek.
(2018)
Proceedings 10th International Workshop on Resilient Networks Design and Modeling (RNDM).
IEEE Press
International Workshop on Resilient Networks Design and Modeling (10)
Vitenskapelig antologi/Konferanseserie
-
Kuipers, Fernando;
Heegaard, Poul Einar.
(2012)
Self-organizing systems : 6th International Workshop IWSOS 2012.
Springer
Lecture Notes in Computer Science (LNCS) (7166)
Vitenskapelig antologi/Konferanseserie
-
Bjørndalen, John Markus;
Haugland, Dag;
Heegaard, Poul Einar;
Løkketangen, Arne;
Møller-Pedersen, Birger;
Rong, Chunming.
(2007)
NIK 2007.
Tapir Akademisk Forlag
Tapir Akademisk Forlag
Vitenskapelig antologi/Konferanseserie
Del av bok/rapport
-
Vatten, Trond;
Jiang, Yuming;
Heegaard, Poul Einar.
(2023)
Assessing NFV Network Recovery Strategies after Random Failures and Targeted Attacks.
IEEE conference proceedings
Vitenskapelig Kapittel/Artikkel/Konferanseartikkel
-
Gajic, Marija;
Lange, Stanislav;
Vatten, Trond;
Furdek, Marija;
Heegaard, Poul Einar.
(2023)
Survivability Assessment of 5G Network Slicing During Massive Outages.
IEEE conference proceedings
Vitenskapelig Kapittel/Artikkel/Konferanseartikkel
-
Gebraselase, Befekadu;
Adrah, Charles Mawutor;
Zerihun, Tesfaye Amare;
Helvik, Bjarne Emil;
Heegaard, Poul Einar.
(2022)
Blockchain Support For Time-Critical Self-Healing In Smart Distribution Grids.
IEEE (Institute of Electrical and Electronics Engineers)
Vitenskapelig Kapittel/Artikkel/Konferanseartikkel
-
Adrah, Charles Mawutor;
Palma, David;
Kure, Øivind;
Heegaard, Poul Einar.
(2022)
Deploying 5G architecture for protection systems in smart distribution grids.
IEEE conference proceedings
Vitenskapelig Kapittel/Artikkel/Konferanseartikkel
-
Mehmood, Kashif;
Mendis, Handunneththi V. Kalpanie;
Kralevska, Katina;
Heegaard, Poul Einar.
(2021)
Intensjonsbasert nettverksadministrasjon og orkestrering for smarte distribusjonsnett.
IEEE (Institute of Electrical and Electronics Engineers)
Vitenskapelig Kapittel/Artikkel/Konferanseartikkel
-
Muka, Romina;
Garau, Michele;
Tola, Besmir;
Heegaard, Poul Einar.
(2021)
Effect of 5G communication service failure on placement of Intelligent Electronic Devices in Smart Distribution Grids.
IEEE (Institute of Electrical and Electronics Engineers)
Vitenskapelig Kapittel/Artikkel/Konferanseartikkel
-
Mendis, Handunneththi V. Kalpanie;
Heegaard, Poul Einar;
Casares-Giner, Vicente;
Li, Frank Yong;
Kralevska, Katina.
(2021)
Transient Performance Modelling of 5G Slicing with Mixed Numerologies for Smart Grid Traffic.
IEEE (Institute of Electrical and Electronics Engineers)
Vitenskapelig Kapittel/Artikkel/Konferanseartikkel
-
Haugli, Fredrik Bakkevig;
Heegaard, Poul Einar.
(2021)
Modeling framework for study of distributed and centralized smart grid system services.
IEEE (Institute of Electrical and Electronics Engineers)
Vitenskapelig Kapittel/Artikkel/Konferanseartikkel
-
Garau, Michele;
Muka, Romina;
Heegaard, Poul Einar;
Helvik, Bjarne Emil.
(2021)
Co-simulation and Discrete Event Simulation for Reliability Assessment of Power System and ICT: A Comparison.
IEEE (Institute of Electrical and Electronics Engineers)
Vitenskapelig Kapittel/Artikkel/Konferanseartikkel
-
Muka, Romina;
Garau, Michele;
Heegaard, Poul Einar.
(2021)
Genetic algorithm for placement of IEDs for fault location in smart distribution grids.
Institution of Engineering and Technology (IET)
Vitenskapelig Kapittel/Artikkel/Konferanseartikkel
-
Kamisinski, Andrzej;
Musumeci, Francesco;
Hmaity, Ali;
Tornatore, Massimo;
Casazza, Marco;
Farshad, Arsham.
(2020)
Resilient NFV Technology and Solutions.
Springer
Faglig kapittel
-
Helvik, Bjarne Emil;
Vizarreta, Petra;
Heegaard, Poul Einar;
Trivedi, Kishor;
Mas Machuca, Carmen.
(2020)
Modelling of Software Failures.
Springer
Faglig kapittel
-
Hossfeld, Tobias;
Heegaard, Poul Einar;
Skorin-Kapov, Lea;
Varela, Martin;
Fiedler, Markus.
(2020)
From QoS Distributions to QoE Distributions: a System's Perspective.
IEEE (Institute of Electrical and Electronics Engineers)
Vitenskapelig Kapittel/Artikkel/Konferanseartikkel
-
Myhre, Stine Fleischer;
Fosso, Olav B;
Heegaard, Poul Einar;
Gjerde, Oddbjørn;
Kjølle, Gerd Hovin.
(2020)
Modeling Interdependencies with Complex Network Theory in a Combined Electrical Power and ICT System.
IEEE (Institute of Electrical and Electronics Engineers)
Vitenskapelig Kapittel/Artikkel/Konferanseartikkel
-
Gajic, Marija;
Furdek, Marija;
Heegaard, Poul Einar.
(2020)
A Framework for Spatial and Temporal Evaluation of Network Disaster Recovery.
IEEE Press
Vitenskapelig Kapittel/Artikkel/Konferanseartikkel
-
Hossfeld, Tobias;
Atzori, Luigi;
Heegaard, Poul Einar;
Skorin-Kapov, Lea;
Varela, Martin.
(2019)
The Interplay between QoE, User Behavior and System Blocking in QoE Management.
IEEE (Institute of Electrical and Electronics Engineers)
Vitenskapelig Kapittel/Artikkel/Konferanseartikkel
-
De Moor, Katrien;
Borge, Hege Krokås;
Heegaard, Poul Einar.
(2019)
Young children and the use of video chat: implications for QoE research.
IEEE (Institute of Electrical and Electronics Engineers)
Vitenskapelig Kapittel/Artikkel/Konferanseartikkel
-
Hossfeld, Tobias;
Heegaard, Poul Einar;
Skorin-Kapov, Lea;
Varela, Martin.
(2019)
Fundamental Relationships for Deriving QoE in Systems.
IEEE (Institute of Electrical and Electronics Engineers)
Vitenskapelig Kapittel/Artikkel/Konferanseartikkel
-
Ammar, Doreid;
De Moor, Katrien;
Skorin-Kapov, Lea;
Fiedler, Markus;
Heegaard, Poul Einar.
(2019)
Exploring the Usefulness of Machine Learning in the Context of WebRTC Performance Estimation.
IEEE (Institute of Electrical and Electronics Engineers)
Vitenskapelig Kapittel/Artikkel/Konferanseartikkel
-
Muka, Romina;
Haugli, Fredrik Bakkevig;
Vefsnmo, Hanne;
Heegaard, Poul Einar.
(2019)
Information Inconsistencies in Smart Distribution
Grids under Different Failure Causes modelled by
Stochastic Activity Networks.
IEEE (Institute of Electrical and Electronics Engineers)
Vitenskapelig Kapittel/Artikkel/Konferanseartikkel
-
Moldovan, Christian;
Skorin-Kapov, Lea;
Heegaard, Poul Einar;
Hossfeld, Tobias.
(2018)
Optimal Fairness and Quality in Video Streaming with Multiple Users.
IEEE Press
Vitenskapelig Kapittel/Artikkel/Konferanseartikkel
-
Hossfeld, Tobias;
Varela, Martin;
Heegaard, Poul Einar;
Skorin-Kapov, Lea.
(2018)
Observations on Emerging Aspects in QoE Modeling and Their Impact on QoE Management
.
IEEE (Institute of Electrical and Electronics Engineers)
Vitenskapelig Kapittel/Artikkel/Konferanseartikkel
-
Hossfeld, Tobias;
Metzger, Florian;
Heegaard, Poul Einar.
(2018)
Traffic modeling for aggregated periodic IoT data
.
IEEE Press
Vitenskapelig Kapittel/Artikkel/Konferanseartikkel
-
Esposito, Christian;
Gouglidis, Antonios;
Hutchison, David;
Gurtov, Andrei;
Helvik, Bjarne Emil;
Heegaard, Poul Einar.
(2018)
On the Disaster Resiliency within the Context of 5G Networks: The RECODIS Experience.
IEEE Press
Vitenskapelig Kapittel/Artikkel/Konferanseartikkel
-
Zerihun, Tesfaye Amare;
Helvik, Bjarne Emil;
Heegaard, Poul Einar.
(2018)
A modeling approach for dependability analysis of smart distribution grids
.
IEEE Press
Vitenskapelig Kapittel/Artikkel/Konferanseartikkel
-
Ammar, Doreid;
De Moor, Katrien;
Heegaard, Poul Einar.
(2017)
An Experimental Platform for QoE Studies of WebRTC-based Multi-Party Video Communication.
IEEE (Institute of Electrical and Electronics Engineers)
Vitenskapelig Kapittel/Artikkel/Konferanseartikkel
-
Hossfeld, Tobias;
Heegaard, Poul Einar;
Skorin-Kapov, Lea;
Varela, Martin.
(2017)
No Silver Bullet: QoE Metrics, QoE Fairness, and User Diversity in the Context of QoE Management.
IEEE (Institute of Electrical and Electronics Engineers)
Vitenskapelig Kapittel/Artikkel/Konferanseartikkel
-
Vizarreta, Petra;
Heegaard, Poul Einar;
Helvik, Bjarne Emil;
Kellerer, Wolfgang;
Mas Machuca, Carmen.
(2017)
Characterization of Failure Dynamics in SDN Controllers.
IEEE (Institute of Electrical and Electronics Engineers)
Vitenskapelig Kapittel/Artikkel/Konferanseartikkel
-
De Moor, Katrien;
Arndt, Sebastian;
Ammar, Doreid;
Voigt-Antons, Jan-Niklas;
Perkis, Andrew;
Heegaard, Poul Einar.
(2017)
Exploring diverse measures for evaluating QoE in the context of WebRTC.
IEEE (Institute of Electrical and Electronics Engineers)
Vitenskapelig Kapittel/Artikkel/Konferanseartikkel
-
Vizarreta, Petra;
Trivedi, Kishor;
Helvik, Bjarne Emil;
Heegaard, Poul Einar;
Kellerer, Wolfgang;
Mas Machuca, Carmen.
(2017)
An empirical study of software reliability in SDN controllers.
IEEE (Institute of Electrical and Electronics Engineers)
Vitenskapelig Kapittel/Artikkel/Konferanseartikkel
-
Hossfeld, Tobias;
Skorin-Kapov, Lea;
Heegaard, Poul Einar;
Varela, Martin;
Chen, Kuan-ta.
(2016)
On Additive and Multiplicative QoS-QoE Models for Multiple QoS Parameters.
Vitenskapelig Kapittel/Artikkel/Konferanseartikkel
-
Tornatore, Massimo;
André, Joao;
Babarczi, Peter;
Braun, Torsten;
Følstad, Eirik Larsen;
Heegaard, Poul Einar.
(2016)
A Survey on Network Resiliency Methodologies against Weather-based Disruptions.
IEEE Sarnoff Symposium
Vitenskapelig Kapittel/Artikkel/Konferanseartikkel
-
Ammar, Doreid;
De Moor, Katrien;
Heegaard, Poul Einar;
Fiedler, Markus;
Xie, Min.
(2016)
Revealing the Dark Side of WebRTC Statistics Collected by Google Chrome.
IEEE (Institute of Electrical and Electronics Engineers)
Vitenskapelig Kapittel/Artikkel/Konferanseartikkel
-
Nencioni, Gianfranco;
Helvik, Bjarne Emil;
Gonzalez, Andres Javier;
Heegaard, Poul Einar;
Kamisinski, Andrzej.
(2016)
Availability Modelling of Software-Defined Backbone Networks.
IEEE Press
Vitenskapelig Kapittel/Artikkel/Konferanseartikkel
-
Heegaard, Poul Einar;
Helvik, Bjarne Emil;
Nencioni, Gianfranco;
Wäfler, Jonas.
(2016)
Managed Dependability in Interacting Systems.
Springer
Vitenskapelig Kapittel/Artikkel/Konferanseartikkel
-
Ammar, Doreid;
De Moor, Katrien;
Xie, Min;
Fiedler, Markus;
Heegaard, Poul Einar.
(2016)
Video QoE killer and performance statistics in WebRTC-based video communication.
IEEE conference proceedings
Vitenskapelig Kapittel/Artikkel/Konferanseartikkel
-
Heegaard, Poul Einar;
Biczok, Gergely;
Toka, Lazio.
(2016)
Sharing is Power: Incentives for Information Exchange in Multi-Operator Service Delivery.
IEEE Press
Vitenskapelig Kapittel/Artikkel/Konferanseartikkel
-
Sieber, Christian;
Heegaard, Poul Einar;
Hoßfeld, Tobias;
Kellerer, Wolfgang.
(2016)
Sacrificing efficiency for quality of experience: YouTube's redundant traffic behavior.
IEEE (Institute of Electrical and Electronics Engineers)
Vitenskapelig Kapittel/Artikkel/Konferanseartikkel
-
Mas Machuca, Carmen;
Secci, Stefano;
Vizerrata, Petra;
Kuipers, Fernando;
Gouglidis, Antonios;
Hutchison, David.
(2016)
Technology-related Disasters: A Survey towards Disaster-resilient Software Defined Networks.
IEEE Sarnoff Symposium
Vitenskapelig Kapittel/Artikkel/Konferanseartikkel
-
Wäfler, Jonas;
Heegaard, Poul Einar.
(2015)
Interdependency in Smart Grid Recovery.
IEEE (Institute of Electrical and Electronics Engineers)
Vitenskapelig Kapittel/Artikkel/Konferanseartikkel
-
Heegaard, Poul Einar;
Helvik, Bjarne Emil;
Trivedi, Kishor;
Machida, Fumio.
(2015)
Survivability as a Generalization of Recovery.
IEEE (Institute of Electrical and Electronics Engineers)
Vitenskapelig Kapittel/Artikkel/Konferanseartikkel
-
Hossfeld, Tobias;
Heegaard, Poul Einar;
Varela, Martin.
(2015)
QoE beyond the MOS: Added value using quantiles and distributions.
IEEE conference proceedings
Vitenskapelig Kapittel/Artikkel/Konferanseartikkel
-
Heegaard, Poul Einar;
Helvik, Bjarne Emil;
Mendiratta, Veena.
(2015)
Achieving Dependability in Software-Defined Networking - A Perspective.
IEEE (Institute of Electrical and Electronics Engineers)
Vitenskapelig Kapittel/Artikkel/Konferanseartikkel
-
Gonzalez, Andres Javier;
Grønsund, Pål R.;
Mahmood, Kashif;
Helvik, Bjarne Emil;
Heegaard, Poul Einar;
Nencioni, Gianfranco.
(2015)
Service availability in the NFV Virtualized Evolved Packet Core.
IEEE Press
Vitenskapelig Kapittel/Artikkel/Konferanseartikkel
-
Wäfler, Jonas;
Heegaard, Poul Einar.
(2013)
A Combined Structural and Dynamic Modelling Approach for Dependability Analysis in Smart Grid.
Association for Computing Machinery (ACM)
Vitenskapelig Kapittel/Artikkel/Konferanseartikkel
-
Wäfler, Jonas;
Heegaard, Poul Einar.
(2013)
Structural Dependability Analysis in Smart Grid under Simultaneous Failures.
IEEE Press
Vitenskapelig Kapittel/Artikkel/Konferanseartikkel
-
Villa, Bjørn Jonny;
De Moor, Katrien;
Heegaard, Poul Einar;
Instefjord, Anders.
(2013)
Investigating Quality of Experience in the context of adaptive video streaming: findings from an experimental user study.
Akademika forlag
Vitenskapelig Kapittel/Artikkel/Konferanseartikkel
-
Xie, Lang;
Jiang, Yuming;
Heegaard, Poul Einar.
(2013)
Modelling and Analysis of the Survivability of Telecommunication Networks.
IEEE Press
Vitenskapelig Kapittel/Artikkel/Konferanseartikkel
-
Gullhav, Anders N.;
Nygreen, Bjørn;
Heegaard, Poul Einar.
(2013)
Approximating the Response Time Distribution of Fault-tolerant Multi-tier Cloud Services.
IEEE (Institute of Electrical and Electronics Engineers)
Vitenskapelig Kapittel/Artikkel/Konferanseartikkel
-
Villa, Bjørn Jonny;
Heegaard, Poul Einar.
(2013)
A Measurement Study of Active Probing on Access Links.
Springer Publishing Company
Vitenskapelig Kapittel/Artikkel/Konferanseartikkel
-
Villa, Bjørn Jonny;
Heegaard, Poul Einar.
(2013)
Group Based Traffic Shaping for Adaptive HTTP Video Streaming.
IEEE (Institute of Electrical and Electronics Engineers)
Vitenskapelig Kapittel/Artikkel/Konferanseartikkel
-
Khan, Razib Hayat;
Heegaard, Poul Einar;
Wali Ullah, Kazi.
(2012)
Performance Evaluation of Distributed System Using SPN.
IntechOpen
Vitenskapelig Kapittel/Artikkel/Konferanseartikkel
-
Villa, Bjørn Jonny;
Heegaard, Poul Einar.
(2012)
Improving Perceived Fairness and QoE for Adaptive Video Streams.
International Academy, Research and Industry Association (IARIA)
Vitenskapelig Kapittel/Artikkel/Konferanseartikkel
-
Villa, Bjørn Jonny;
Heegaard, Poul Einar;
Instefjord, Anders.
(2012)
Improving Fairness for Adaptive HTTP Video Streaming.
Springer
Vitenskapelig Kapittel/Artikkel/Konferanseartikkel
-
Villa, Bjørn Jonny;
Heegaard, Poul Einar.
(2011)
Towards Knowledge-driven QoE Optimization in Home Gateways.
International Academy, Research and Industry Association (IARIA)
Vitenskapelig Kapittel/Artikkel/Konferanseartikkel
-
Undheim, Astrid;
Chilwan, Ameen;
Heegaard, Poul Einar.
(2011)
Differentiated Availability in Cloud Computing SLAs.
IEEE (Institute of Electrical and Electronics Engineers)
Vitenskapelig Kapittel/Artikkel/Konferanseartikkel
-
Brugge, Jonathan;
Paquereau, Laurent;
Heegaard, Poul Einar.
(2010)
Experience Report on Implementing and Simulating a Routing Protocol in NS-2 and NS-3.
IEEE (Institute of Electrical and Electronics Engineers)
Vitenskapelig Kapittel/Artikkel/Konferanseartikkel
-
Csorba, Mate Jozsef;
Meling, Hein;
Heegaard, Poul Einar.
(2010)
Ant system for service development in private and public clouds.
Association for Computing Machinery (ACM)
Vitenskapelig Kapittel/Artikkel/Konferanseartikkel
-
Xie, Lang;
Heegaard, Poul Einar;
Zhang, Jin;
Xiang, Jie.
(2010)
System State aware Admission Control scheme for IEEE 802.16 WiMAX-based healthcare system.
ACM Publications
Annet
-
Villa, Bjørn Jonny;
Heegaard, Poul Einar.
(2010)
Monitoring and control of QoE in media streams by click software router.
Tapir Akademisk Forlag
Vitenskapelig Kapittel/Artikkel/Konferanseartikkel
-
Østhus, Ivar Conradi;
Hansen, Lars-Petter Gunhildsberg;
Heegaard, Poul Einar.
(2009)
Online Broadband Test Tools.
Tapir Akademisk Forlag
Vitenskapelig Kapittel/Artikkel/Konferanseartikkel
-
Csorba, Mate Jozsef;
Meling, Hein;
Heegaard, Poul Einar.
(2009)
Laying Pheromone Trails for Balanced and Dependable Component Mappings.
Abstrakt forlag
Vitenskapelig Kapittel/Artikkel/Konferanseartikkel
-
Csorba, Mate Jozsef;
Meling, Hein;
Heegaard, Poul Einar;
Herrmann, Peter.
(2009)
Foraging for Better Deployment of Replicated Service Components.
Springer
Vitenskapelig Kapittel/Artikkel/Konferanseartikkel
-
Csorba, Mate Jozsef;
Heegaard, Poul Einar;
Herrmann, Peter.
(2008)
Adaptable Model-based Component Deployment Guided by Artificial Ants.
Association for Computing Machinery (ACM)
Annet
-
Kjeldsen, Vebjørn;
Wittner, Otto Jonassen;
Heegaard, Poul Einar.
(2008)
Distributed and Scalable Path Management by a System of Cooperating Ants.
CSREA Press
Vitenskapelig Kapittel/Artikkel/Konferanseartikkel
-
Heegaard, Poul Einar;
Trivedi, Kishor.
(2008)
Survivability Quantification of Communication Services.
Vitenskapelig Kapittel/Artikkel/Konferanseartikkel
-
Heegaard, Poul Einar;
Trivedi, Kishor.
(2008)
Survivability in Real-sized Networks Quantified by Analytical Delay Distributions.
IEEE (Institute of Electrical and Electronics Engineers)
Vitenskapelig Kapittel/Artikkel/Konferanseartikkel
-
Stray, Petter;
Jelle, Thomas;
Heegaard, Poul Einar.
(2007)
Field Test of Mobile Wi-Fi Terminals in a Wireless City.
Tapir Akademisk Forlag
Vitenskapelig Kapittel/Artikkel/Konferanseartikkel
-
Heegaard, Poul Einar;
Sandmann, Werner.
(2007)
Ant-based Approach for Determining the Change of Measure in Importance Sampling.
Vitenskapelig Kapittel/Artikkel/Konferanseartikkel
-
Tjora, Åsmund;
Skavhaug, Amund;
Heegaard, Poul Einar.
(2007)
A Mathematical Model for Run-Time Distributions in a Fault Tolerant System with Nonhomogeneous Passive Replicas.
Vitenskapelig Kapittel/Artikkel/Konferanseartikkel
-
Heegaard, Poul Einar.
(2007)
Empirical Observations of Traffic Patterns in Mobile and IP Telephony.
Springer
Vitenskapelig Kapittel/Artikkel/Konferanseartikkel
-
Heegaard, Poul Einar;
Sandmann, Werner.
(2007)
Efficient Estimation of Loss Rates in Optical Packet Switched Networks with Wavelength Conversion.
IEEE (Institute of Electrical and Electronics Engineers)
Vitenskapelig Kapittel/Artikkel/Konferanseartikkel
-
Heegaard, Poul Einar;
Sandmann, Werner.
(2007)
Evaluating Differentiated Quality of Service Parameters in Optical Packet Switching.
Springer
Vitenskapelig Kapittel/Artikkel/Konferanseartikkel
-
Heegaard, Poul Einar.
(2007)
Evolution of Traffic Patterns in Telecommunication Systems.
IEEE conference proceedings
Vitenskapelig Kapittel/Artikkel/Konferanseartikkel
-
Paquereau, Laurent;
Viken, Brynjar;
Heegaard, Poul Einar.
(2005)
Combining performance monitoring and location data in wireless networks.
Tapir Akademisk Forlag
Vitenskapelig Kapittel/Artikkel/Konferanseartikkel
-
Heegaard, Poul Einar;
Helvik, Bjarne Emil;
Andreassen, Ragnar.
(2005)
Application of Rare Event Techniques to Trace Driven Simulation.
Vitenskapelig Kapittel/Artikkel/Konferanseartikkel
-
Görg, Carmelita;
Lamers, Eugen;
Fuß, Oliver;
Heegaard, Poul Einar.
(2001)
Rare Event Simulation.
Vitenskapelig Kapittel/Artikkel/Konferanseartikkel
Rapport
-
Myhre, Stine Fleischer;
Fosso, Olav Bjarte;
Gjerde, Oddbjørn;
Heegaard, Poul Einar.
(2023)
Reliability Assessment Tool for Modern Electrical Distribution Systems - A Monte Carlo Simulation Approach.
Norges teknisk-naturvitenskapelige universitet
Norges teknisk-naturvitenskapelige universitet
Doktorgradsavhandling
-
Refvik, Håvard Sandgrind;
Heegaard, Poul Einar.
(2020)
Robustness of short-term load forecasting models for smart grids.
NTNU
Mastergradsoppgave
-
Nencioni, Gianfranco;
Helvik, Bjarne Emil;
Heegaard, Poul Einar.
(2017)
Implementing the Availability Model of a Software-Defined Backbone Network in Möbius.
NTNU
Rapport
-
Nencioni, Gianfranco;
Helvik, Bjarne Emil;
Gonzalez, Andres Javier;
Heegaard, Poul Einar;
Kamisinski, Andrzej.
(2016)
Impact of SDN Controllers Deployment on Network Availability.
NTNU
Rapport
-
Sand, Kjell;
Heegaard, Poul Einar.
(2015)
Next Generation Control Centres - State of art and future scenarios. Version 2.0.
Norges Teknisk Naturvitenskapelige Universitet
Rapport
-
Østrem, Trond;
Bolkesjø, Torjus Folsland;
Rong, Chunming;
Wolff, Robert;
Sand, Kjell;
Mathisen, Geir.
(2015)
Norwegian Smart Grid Research Strategy.
The Scientific Committee of the Norwegian Smart Grid Centre
Rapport
-
Csorba, Mate Jozsef;
Heegaard, Poul Einar;
Herrmann, Peter Michael.
(2011)
Cost-Efficient Deployment of Distributed Software Services.
Doktoravhandlinger ved NTNU (2011:122)
Doktorgradsavhandling
-
Emstad, Peder Johannes;
Heegaard, Poul Einar;
Helvik, Bjarne Emil;
Paquereau, Laurent.
(2007)
Dependability and performance with discrete event simulation.
Tapir Akademisk Forlag
Tapir Akademisk Forlag
Kompendium
-
Heegaard, Poul Einar;
Fuglem, Ingebrigt.
(2006)
Demonstrating ant-based monitoring on software IP routers (Deliverable 14).
BISON project
Rapport
-
Emstad, Peder Johannes;
Heegaard, Poul Einar;
Helvik, Bjarne Emil.
(2004)
Pålitelighet og ytelse i informasjons- og kommunikasjonssystem - Grunnlag.
Tapir Akademisk Forlag
Tapir Akademisk Forlag
Kompendium
-
Heegaard, Poul Einar.
(2004)
Evaluation of basic services in AHN, P2P and Grid networks (Deliverable 07).
BISON project
Rapport
-
Heegaard, Poul Einar.
(2004)
Implementation of basic services in AHN, P2P and Grid networks (Deliverable 06).
BISON project
Rapport
-
Heegaard, Poul Einar.
(2004)
Evaluation plan (Deliverable 04).
BISON project
Rapport
-
Heegaard, Poul Einar.
(2004)
Models for Basic Services in AHN, P2P Networks (Deliverable 05).
BISON project
Rapport
-
Wittner, Otto;
Heegaard, Poul Einar;
Helvik, Bjarne Emil.
(2002)
Swarm Based Distributed Search in the AMIGOS Environment.
AVANTEL Technical Report
Rapport
-
Emstad, Peder Johannes;
Heegaard, Poul Einar;
Helvik, Bjarne Emil.
(1999)
Pålitelighet og ytelse i informasjons- og kommunikasjonssystem. Grunnlag.
Institutt for telematikk, NTNU
Kompendium
-
Heegaard, Poul Einar.
(1998)
Efficient simulation of network performance by importance sampling.
Doktor ingeniøravhandling (1998:33)
Doktorgradsavhandling
Undervisning
Emner
Formidling
2023
-
PosterGnanasekaran, Vahiny; Heegaard, Poul Einar. (2023) Exploring the Interaction between Security Operations Center and Industrial in-house Response Teams. Norges teknisk-naturvitenskapelige universitet (NTNU) 10th ACM Celebration of Women in Computing: womENcourage™ 2023 , Trondheim 2023-09-20 - 2023-09-22
-
Vitenskapelig foredragVatten, Trond; Heegaard, Poul Einar; Jiang, Yuming. (2023) Assessing NFV Network Recovery Strategies after Random Failures and Targeted Attacks. University of Hamburg, Germany in co-operation with Gdansk University of Technology, Poland. RNDM 2023 , Hamburg 2023-09-19 - 2023-09-22
-
Vitenskapelig foredragHeegaard, Poul Einar. (2023) 5G som muliggjører for kritiske tjenester. NFEA Industriell trådløs kommunikasjon 2023 , Oslo 2023-11-07 - 2023-11-08
-
Vitenskapelig foredragHeegaard, Poul Einar. (2023) 5G communication services for critical infrastructure operation. SINTEF Energy ERIGrid/CINELDI Conference 2023 , Trondheim 2023-01-31 - 2023-01-31
2018
-
Vitenskapelig foredragEsposito, Christian; Gouglidis, Antonios; Hutchison, David; Gurtov, Andrei; Helvik, Bjarne Emil; Heegaard, Poul Einar. (2018) On the Disaster Resiliency within the Context of 5G Networks: The RECODIS Experience. European Conference on Networks and Communications [EuCNC 2018] , Ljubljana 2018-06-18 - 2018-06-21
2017
-
Vitenskapelig foredragHeegaard, Poul Einar; Trivedi, Kishor. (2017) Modeling and quantification of network survivability. International Teletraffic Congress (ITC 29) 2017-09-04 - 2017-09-08
-
Vitenskapelig foredragHeegaard, Poul Einar; Trivedi, Kishor. (2017) Modeling and quantification of network survivability. 9th International Workshop on Resilient Networks Design and Modeling (RNDM 2017) 2017-09-04 - 2017-09-06
2016
-
Vitenskapelig foredragMoldovan, Christian; Sieber, Christian; Heegaard, Poul Einar; Hossfeld, Tobias; Kellerer, Wolfgang. (2016) YouTube Can Do Better: Getting the Most Out of Video Adaptation. Fourth International IEEE Workshop on Quality of Experience Centric Management. (in conjunction with ITC 2016, Würzburg) , Würzburg 2016-09-16 -
2015
-
Vitenskapelig foredragHeegaard, Poul Einar. (2015) Achieving Dependability in Software-Defined Networking - A Perspective. 7th International Workshop on Reliable Networks Design and Modeling (RNDM 2015) , Munich 2015-10-05 - 2015-10-07
-
Faglig foredragHeegaard, Poul Einar. (2015) Modeling and quantification of network survivability (Tutorial). 2015 11th International Conference on The Design of Reliable Communication Networks (DRCN) 2015-03-24 - 2015-03-27
-
Faglig foredragHeegaard, Poul Einar. (2015) Survivability as a Generalization of Recovery. 2015 11th International Conference on The Design of Reliable Communication Networks (DRCN) 2015-03-24 - 2015-03-27
2013
-
Vitenskapelig foredragVilla, Bjørn Jonny; De Moor, Katrien; Heegaard, Poul Einar; Instefjord, Anders. (2013) Investigating Quality of Experience in the context of adaptive video streaming: findings from an experimental user study. Norsk informatikkonferanse NIK 2013 , Stavanger 2013-11-18 - 2013-11-20
-
Faglig foredragWäfler, Jonas; Heegaard, Poul Einar. (2013) Interdependency Modeling in Smart Grid and the Influence of ICT on Dependability. EUNICE/IFIP WG 6.6 19th EUNICE/IFIP WG 6.6 International Workshop , Chemnitz 2013-08-28 - 2013-08-30
-
Faglig foredragWäfler, Jonas; Heegaard, Poul Einar. (2013) Structural Dependability Analysis in Smart Grid under Simultaneous Failures. IEEE 2013 IEEE International Conference on Smart Grid Communications (SmartGridComm) , Vancouver 2013-10-21 - 2013-10-24
-
Vitenskapelig foredragGullhav, Anders N.; Nygreen, Bjørn; Heegaard, Poul Einar. (2013) Approximating the Response Time Distribution of Fault-tolerant Multi-tier Cloud Services. IEEE/ACM, Technical University of Dresden 2013 IEEE/ACM 6th International Conference on Utility and Cloud Computing (UCC) , Dresden 2013-12-09 - 2013-12-12
-
Vitenskapelig foredragWäfler, Jonas; Heegaard, Poul Einar. (2013) A Combined Structural and Dynamic Modelling Approach for Dependability Analysis in Smart Grid. ACM 28th ACM Symposion on Applied Computing (SAC) , Coimbra 2013-03-18 - 2013-03-22
2012
-
Vitenskapelig foredragAurelius, Andreas; Arvidsson, Åke; Heegaard, Poul Einar; Villa, Bjørn Jonny; Kihl, Maria; Zhang, Yichi. (2012) Residential broadband Internet traffic - analysis of link load in a Swedish municipal network. 8th Swedish National Computer Networking Workshop (SNCNW 2012) 2012-06-07 - 2012-06-08
-
Vitenskapelig foredragKhan, Razib Hayat; Heegaard, Poul Einar; Machida, Fumio; Trivedi, Kishor. (2012) From UML to SRN: A Performability Modeling Framework Considering Service Components Deployment. 8th International Conference on Networking & Services 2012-03-25 - 2012-03-30
-
Vitenskapelig foredragKhan, Razib Hayat; Heegaard, Poul Einar; Machida, Fumio. (2012) From UML to SRN: A tool based support for performability modeling of distributed system considering reusable software components. 23rd IAESTD International Conference on Modelling and Simulation 2012-07-03 - 2012-07-05
2011
-
Vitenskapelig foredragVilla, Bjørn Jonny; Heegaard, Poul Einar. (2011) Towards Knowledge-driven QoE Optimization in Home Gateways. IARA ICNS 2011, The Seventh International Conference on Networking and Services , Mestre/Venice 2011-05-22 - 2011-05-27
-
ProgramdeltagelseHeegaard, Poul Einar. (2011) Innslag om Telenors mobilenettfeil i 1730 på P4. P4 P4 [Radio] 2011-06-16
-
Vitenskapelig foredragHeegaard, Poul Einar; Trivedi, Kishor. (2011) Network Survivability Modeling and Quantification (Tutorial). International Teletraffic Congress International Teletraffic Congress , San Francisco 2011-09-08 - 2011-09-09
-
Vitenskapelig foredragGullhav, Anders N.; Nygreen, Bjørn; Heegaard, Poul Einar. (2011) Service Deployment Decisions in Cloud Data Centers Based on Service Level Agreements (SLA). Informs Informas 2011 Annual Meeting , Charlotte, NC 2011-11-13 - 2011-11-16
-
Vitenskapelig foredragHeegaard, Poul Einar. (2011) QoS og tjenestekvalitet. Tekna Mobilt bredbånd - LTE - WiMAX , Oslo 2011-03-29 - 2011-03-30
-
IntervjuHeegaard, Poul Einar. (2011) Ny app gjer mobilen til naudnett. NRK Vitenskap og teknologi NRK Vitenskap og teknologi [Internett] 2011-08-11
-
Vitenskapelig foredragKhan, Razib Hayat; Heegaard, Poul Einar. (2011) A performance modeling framework incorporating service components deployment issue. International Conference on Computer Communication & Management 2011-05-02 - 2011-05-03
-
Vitenskapelig foredragKhan, Razib Hayat; Heegaard, Poul Einar. (2011) A performance modeling framework incorporating cost efficient deployment of multiple collaborating components. International Conference on Software Engineering & Computer Systems 2011-06-27 - 2011-06-29
2010
-
Vitenskapelig foredragKhan, Razib Hayat; Heegaard, Poul Einar. (2010) Translation from UML to SPN model: A performance modeling framework for managing behavior of multiple collaborative sessions and instances. International Conference on Computer Design and Applications (ICCDA), 2010 2010-06-25 - 2010-06-27
-
Vitenskapelig foredragKhan, Razib Hayat; Heegaard, Poul Einar. (2010) Translation from UML to Markov model: A performance modeling framework for managing behavior of multiple collaborative sessions and instances. 3rd IEEE International Conference on Computer Science and Information Technology (ICCSIT), 2010 2010-07-09 - 2010-07-11
-
Vitenskapelig foredragKhan, Razib Hayat; Heegaard, Poul Einar. (2010) Translation from UML to SPN model: A performance modeling framework. Networked Services and Applications – Engineering, Control and Management (EUNICE) 2010-06-28 - 2010-06-30
-
Vitenskapelig foredragKhan, Razib Hayat; Heegaard, Poul Einar. (2010) A Performance modeling framework incorporating cost efficient deployment of collaborating components. 2nd International Conference on Software Technology and Engineering, 2010 2010-10-03 - 2010-10-05
-
Vitenskapelig foredragCsorba, Mate Jozsef; Meling, Hein; Heegaard, Poul Einar. (2010) Ant System for Service Deployment in Private and Public Clouds. In proceedings of BADS 2010 (Workshop on Bio-Inspired Algorithms for Distributed Systems) , Washington, DC 2010-06-11 - 2010-06-11
-
Vitenskapelig foredragXie, Lang; Heegaard, Poul Einar; Zhang, Jin; Xiang, Jie. (2010) System State aware Admission Control scheme for IEEE 802.16 WiMAX-based healthcare system. The 6th International Wireless Communication & Mobile Computing Conference (IWCMC 2010) 2010-06-28 - 2010-07-02
-
Vitenskapelig foredragHeegaard, Poul Einar; Følstad, Eirik Larsen. (2010) Kvalitet i trådløse nett - mer enn bare radioplanlegging. Tekna Mobilt bredbånd - LTE - WiMAX , Gardermoen 2010-03-16 - 2010-03-17
-
Vitenskapelig foredragVilla, Bjørn Jonny; Heegaard, Poul Einar. (2010) Monitoring and Control of QoE in Media Streams by Click. Norsk Informatikk Konferenase 2010-11-22 - 2010-11-24
-
Vitenskapelig foredragCsorba, Mate Jozsef; Heegaard, Poul Einar. (2010) Swarm Intelligence Heuristics for Component Deployment. IFIP In proc. of IFIP EUNICE 2010 , Trondheim 2010-06-28 - 2010-06-30
-
Vitenskapelig foredragXie, Lang; Heegaard, Poul Einar; Zhang, Yan; Xiang, Jie. (2010) Reliable Channel Selection and Routing for Real-time Services over Cognitive Radio Mesh Networks. The 7th International ICST Conference on Heterogeneous Networking for Quality, Reliability, Security and Robustness (QShine 2010) 2010-11-17 - 2010-11-19
2009
-
Vitenskapelig foredragHeegaard, Poul Einar; Sandmann, Werner. (2009) Importance Sampling Simulations of Phase-Type Queues. 2009 Winter Simulation Conference , Austin, TX 2009-12-13 - 2009-12-16
-
Vitenskapelig foredragHeegaard, Poul Einar; Trivedi, Kishor. (2009) Survivability Modeling with Stochastic Reward Nets. 2009 Winter Simulation Conference 2009-12-13 - 2009-12-16
-
Vitenskapelig foredragKhan, Razib Hayat; Heegaard, Poul Einar. (2009) Translation from UML to Markov Model: A performance modeling framework. University of Bridgeport Int. Joint Conference on Computer, Information, and Systems Sciences, and Engineering (CISSE 2009) 2009-12-04 - 2009-12-12
-
Vitenskapelig foredragOfigsbø, Mona Holsve; Mjølsnes, Stig Frode; Heegaard, Poul Einar; Nilsen, Leif. (2009) Reducing the Cost of Certificate Revocation: A Case Study. EUROPKI'09 - Sixth European Workshop on Public Key Services, Applications and Infrastructures , Pisa 2009-09-10 - 2009-09-11
2008
-
Vitenskapelig foredragCsorba, Mate Jozsef; Heegaard, Poul Einar; Herrmann, Peter. (2008) Adaptable Model-based Component Deployment Guided by Artificial Ants. ICST, ACM 2nd International Conference on Autonomic Computing and Communication Systems , Turin 2008-09-23 - 2008-09-25
-
Vitenskapelig foredragHeegaard, Poul Einar; Sandmann, Werner. (2008) Ant Colony Optimized Importance Sampling: Principles, Applications and Challenges. INRIA 7th International Workshop on Rare Event Simulation (RESIM 2008) , Rennes 2008-09-24 - 2008-09-26
-
Vitenskapelig foredragHeegaard, Poul Einar. (2008) Network Survivability Quantification. University of Bremen Seminar , Bremen 2008-01-24 - 2008-01-24
-
Vitenskapelig foredragHeegaard, Poul Einar. (2008) Swarm Intelligence in Communication Networks. University of Bremen Seminar , Bremen 2008-01-24 - 2008-01-24
-
Vitenskapelig foredragCsorba, Mate Jozsef; Heegaard, Poul Einar; Herrmann, Peter. (2008) Cost-Efficient Deployment of Collaborative Components. René Meier, Sotirios Terzis 8th IFIP WG6.1 International Conference on Distributed Applications and Interoperable Systems (DAIS 2008) , Oslo 2008-06-04 - 2008-06-06
2007
-
Vitenskapelig foredragStray, Petter; Jelle, Thomas; Heegaard, Poul Einar. (2007) Field Test of Mobile Wi-Fi Terminals in a Wireless City. Norsk Informatikkonferanse (NIK 2007) , Oslo 2007-11-19 - 2007-11-21
-
Vitenskapelig foredragHeegaard, Poul Einar; Sandmann, Werner. (2007) Evaluating Differentiated Quality of Service Parameters in Optical Packet Switching. 7th International Conference on Next Generation Teletraffic and Wired/Wireless Advanced Networking (NEW2AN 2007). 2007-09-10 - 2007-09-14
-
Vitenskapelig foredragHeegaard, Poul Einar; Sandmann, Werner. (2007) Efficient Estimation of Loss Rates in Optical Packet Switched Networks with Wavelength Conversion. Second International Conference on Systems and Networks Communications (ICSNC 2007) 2007-08-25 - 2007-08-31
-
Vitenskapelig foredragHeegaard, Poul Einar; Sandmann, Werner. (2007) Ant-based Approach for Determining the Change of Measure in Importance Sampling. Winter Simulation Conference 2007 2007-12-12 - 2007-12-14
-
Vitenskapelig foredragHeegaard, Poul Einar. (2007) Evolution of Traffic Patterns in Telecommunication Systems. ChinaCom - International Conference on Communications and Networking in China 2007-08-22 - 2007-08-24
-
Vitenskapelig foredragHeegaard, Poul Einar. (2007) Expectation. Duke University Class 255 , Durham, NC 2007-10-23 - 2007-10-23
-
Vitenskapelig foredragHeegaard, Poul Einar. (2007) Continuous-Time Markov Chains. Duke University Class 255 , Durham, NC 2007-11-27 - 2007-11-27
-
Vitenskapelig foredragHeegaard, Poul Einar. (2007) Empirical Observations of Traffic Patterns in Mobile and IP Telephony. 7th International Conference on Next Generation Teletraffic and Wired/Wireless Advanced Networking (NEW2AN 2007). 2007-09-10 - 2007-09-14
2006
-
Vitenskapelig foredragHeegaard, Poul Einar; Wittner, Otto. (2006) Self-tuned refresh rate in a swarm intelligence path management system. The International EuroNGI Workshop on Self-Organizing Systems (IWSOS 2006) , Passau 2006-09-18 - 2006-09-20
-
Vitenskapelig foredragHeegaard, Poul Einar; Wittner, Otto. (2006) Restoration performance vs. overhead in a swarm intelligence path management system. 5th International Workshop on Ant Colony Optiization and Swarm Intelligence (ANTS2006) , Brussels 2006-09-04 - 2006-09-07
-
Vitenskapelig foredragTjora, Åsmund; Skavhaug, Amund; Heegaard, Poul Einar. (2006) A Mathematical Model for Run-Time Distributions in a Fault Tolerant System with Nonhomogeneous Passive Replicas. ERCIM DECOS/ERCIM Workshop on Dependable Embedded Systems , Gdansk 2006-09-26 - 2006-09-26
-
PosterHeegaard, Poul Einar; Fuglem, Ingebrigt. (2006) AntPing - prototype demonstrator of swarm based path management and monitoring. International Workshop on Self-Organizing Systems 2006 2006-09-18 - 2006-09-20
2005
-
Vitenskapelig foredragHeegaard, Poul Einar; Fuglem, Ingebrigt. (2005) Performance monitoring by swarm intelligence. SIMULA Norwegian Network Research Seminar 2005 , Forenbu 2005-10-27 - 2005-10-28
-
Vitenskapelig foredragHeegaard, Poul Einar; Helvik, Bjarne Emil; Andreassen, Ragnar. (2005) Application of Rare Event Techniques to Trace Driven Simulation. WSC Foundation INFORMS/IEEE/ACM Winter Simulation Conference 2005 , Orlando 2005-12-04 - 2005-12-07
-
Vitenskapelig foredragPaquereau, Laurent; Viken, Brynjar Åge; Heegaard, Poul Einar. (2005) Combining performance monitoring and location data in wireless networks. NIK Norsk informatikkonferanse , Bergen 2005-11-21 - 2005-11-23
2004
-
Vitenskapelig foredragHesby, Nina; Heegaard, Poul Einar; Wittner, Otto. (2004) Robust Connections in IP Networks Using Primary and Backup Path. Telnor 17th Nordic Teletraffic Seminar , Fornebu, Oslo 2004-08-25 - 2004-08-27
-
Vitenskapelig foredragHeegaard, Poul Einar; Wittner, Otto; Nicola, Victor; Helvik, Bjarne Emil. (2004) Theory: Distributed Asynchronous Algorithm for Cross-Entropy-Based Combinatorial Optimization. Uninett, NTNU, Simula Norwegian Network Research Seminar 2004 , Trondheim 2004-10-21 - 2004-10-22
-
Vitenskapelig foredragHeegaard, Poul Einar; Wittner, Otto; Nicola, Victor; Helvik, Bjarne Emil. (2004) Distributed Asynchronous Algorithm for Cross-Entropy-Based Combinatorial Optimization. University of Budapest Rare Event Simulation and Combinatorial Optimization , Budapest 2004-09-07 - 2004-09-08
-
Vitenskapelig foredragHeegaard, Poul Einar; Ryland, Jørgen. (2004) Single point passive measurements for estimation of two-way delay characteristics. Telenor 17th Nordic Teletraffic Seminar , Fornebu 2004-08-25 - 2004-08-27
-
Vitenskapelig foredragHeegaard, Poul Einar; Viken, Brynjar Åge. (2004) Performance evaluation of a low-cost network monitor. Telnor 17th Nordic Teletraffic Seminar , Fornebu, Oslo 2004-08-25 - 2004-08-27
-
Vitenskapelig foredragMykkeltveit, Anders; Heegaard, Poul Einar; Wittner, Otto. (2004) Realization of a Distributed Route Management System on Software Routers. NIK-stiftelsen Norsk Informatikkonferanse 2004 , Stavanger 2004-11-29 - 2004-12-01
2003
-
Vitenskapelig foredragWittner, Otto; Heegaard, Poul Einar; Helvik, Bjarne Emil. (2003) Scalable Distributed Discovery of Resource Paths in Telecommunication Networks using Cooperative Ant-like Agents. 2003 IEEE Congress on Evolutionary Computation [CEC2003] , Canberra 2003-12-08 - 2003-12-12
-
Vitenskapelig foredragWittner, Otto; Heegaard, Poul Einar; Helvik, Bjarne Emil. (2003) Scalable Distributed Discovery of Resource Paths in Telecommunication Networks using Cooperative Ant-like Agents. Congress on Evolutionary Computation (CEC2003) , Canberra, Australia. 2003-12-12 -
-
Vitenskapelig foredrag
-
Vitenskapelig foredragHeegaard, Poul Einar. (2003) Measurement based traffic engineering. 21. NORDUnet Network Conference , Reykjavík, Iceland 2003-08-27 -
2002
-
Vitenskapelig foredragHeegaard, Poul Einar; Aarstad, Egil; Kjønsberg, Heidi; Østerbø, Olav. (2002) On the Statistical Behaviour of Competing TCP Connections in a Bottleneck Router. 16th Nordic Teletraffic Seminar , Espoo, Finland 2002-08-23 -
-
Vitenskapelig foredragHeegaard, Poul Einar; Viken, Brynjar Åge. (2002) Adaptive Active Measurements of the Performance at Bottlenecks in IP Based Networks. 16th Nordic Teletraffic Seminar , Espoo, Finland 2002-08-23 -
2001
-
Vitenskapelig foredragRøhne, Mette; Netland, Bjørn; Grgic, Irena; Pettersen, Harald; Heegaard, Poul Einar. (2001) Handling QoS in Full Service Networks. ConTEL 2001 - 6th International Conference on Telecommunications , Zagreb, Croatia 2001-06-15 -
2000
-
Vitenskapelig foredragHeegaard, Poul Einar. (2000) GenSyn - a Java-based generator of synthetic Internet traffic linking user behaviour models to real network protocols. ITC specialist seminar on IP traffic measurement, modeling and management , Monterey, CA, USA, September 18-20, 2000
-
Vitenskapelig foredragHeegaard, Poul Einar. (2000) GenSyn - a generator of synthetic Internet traffic used in QoS experiments. NTS15 - Fifteenth Nordic Teletraffic Seminar , Lund, Sweden, August 22-24, 2000
-
Vitenskapelig foredragHeegaard, Poul Einar. (2000) GenSyn - Java-based generator of synthetic Internet traffic. Uninett testnettseminar , Tromsø, 26 og 27 januar 2000
1999
-
Vitenskapelig foredragHeegaard, Poul Einar; Helvik, Bjarne Emil. (1999) On the use of likelihood ratio as indicator of the accuracy of importance sampling estimates. Second International Workshop on Rare Event Simulation (RESIM'99) , Twente, 11.-12. mars 1999
-
Vitenskapelig foredragHeegaard, Poul Einar. (1999) Importance sampling - application to network simulation. 15th International Teletraffic Congress , Edinburgh, UK, 07.-11.06.1999
1998
-
Vitenskapelig foredragHeegaard, Poul E.; Helvik, Bjarne Emil; Stol, Norvald. (1998) Genetic Algorithms for Dimensioning of Full Service Access Networks. Fourteenth Nordic Teletraffic Seminar (NTS 14) , Lyngby, Demark
1997
-
Vitenskapelig foredragHeegaard, Poul Einar. (1997) Speedup simulation techniques (survey). Workshop on Rare Event Simulation , Aachen
-
Vitenskapelig foredragHeegaard, Poul Einar. (1997) A scheme for adaptive biasing in importance sampling. Workshop on Rare Event Simulation , Aachen
-
Vitenskapelig foredragHeegaard, Poul Einar. (1997) Efficient simulation of network performance by importance sampling. 15th International Teletraffic Congress , Washington, D.C.
-
PosterHeegaard, Poul Einar. (1997) Efficient simulation of network performance. Winter Simulation Conference , Atlanta, Ga.