2025

• Gnanasekaran, Vahiny; Fatima, Urooj; Glas, Magdalena; Heegaard, Poul Einar. (2025) A Model-Based Framework for Developing Security-Safety Incident Response Plans. International Journal of Information Security
  Vitenskapelig artikkel
• Gnanasekaran, Vahiny; Fatima, Urooj; Heegaard, Poul Einar. (2025) Replication Data for: A Model-Based Framework for Developing Security-Safety Incident Response Plans.
  Annet
• Gnanasekaran, Vahiny; Nilsen, Thomas Grønbakk; Heegaard, Poul Einar. (2025) A Comparative Study of Security Operations Center Models for Operational Technology. NIKT: Norsk IKT-konferanse for forskning og utdanning
  Vitenskapelig artikkel
• Gnanasekaran, Vahiny; Heegaard, Poul Einar. (2025) Investigating Cyber-Situational Awareness for Cyber Ranges in Offshore Operations.
  Vitenskapelig Kapittel/Artikkel/Konferanseartikkel
• Heegaard, Poul Einar; Hossfeld, Tobias. (2025) Markov Model of the Performability of Physical Servers and Virtual Machines with Failures. International Workshop on Reliable Networks Design and Modeling (RNDM)
  Vitenskapelig artikkel
• Vatten, Trond; Furdek, Marija; Gajic, Marija; Heegaard, Poul Einar. (2025) On the Service Resilience Benefits of Multi-Operator Network Sharing with NFV. International Workshop on Reliable Networks Design and Modeling (RNDM)
  Vitenskapelig artikkel
• Gnanasekaran, Vahiny; Neudert, Raphael; Heegaard, Poul Einar; Pernul, Günther. (2025) A Role Taxonomy in Security-Safety Incident Response.
  Vitenskapelig Kapittel/Artikkel/Konferanseartikkel
• Gnanasekaran, Vahiny; Heegaard, Poul Einar. (2025) Investigating Cyber-Situational Awareness for Cyber Ranges in Offshore Operations.
  Vitenskapelig Kapittel/Artikkel/Konferanseartikkel
• Nilsen, Thomas Grønbakk; Heegaard, Poul Einar; Gnanasekaran, Vahiny. (2025) Operational Technology focused Security Operations Centers (OT SOCs) in the Norwegian Industry. NTNU Open NTNU Open
  Mastergradsoppgave
• Kruszyn, Izabela Gabriela; Heegaard, Poul Einar; Gnanasekaran, Vahiny. (2025) Towards Understanding Cybersecurity Awareness and Preparedness Among Control Room Operators in OT Environments. NTNU Open NTNU Open
  Mastergradsoppgave

2024

• Mendis, Handunneththi Vimarsha Kalpani; Lange, Stanislav; Heegaard, Poul Einar. (2024) Admission Control in Intent-based Network Slices for the Smart Grid Usecase.
  Vitenskapelig Kapittel/Artikkel/Konferanseartikkel
• Gnanasekaran, Vahiny; Grøtan, Tor Olav; Bartnes, Maria; Heegaard, Poul Einar. (2024) Rethinking Independence in Safety Systems.
  Vitenskapelig Kapittel/Artikkel/Konferanseartikkel
• Gnanasekaran, Vahiny; Bartnes, Maria; Grøtan, Tor Olav; Heegaard, Poul Einar. (2024) Cyber-incident Response in Industrial Control Systems: Practices and Challenges in the Petroleum Industry.
  Vitenskapelig Kapittel/Artikkel/Konferanseartikkel
• Vatten, Trond; Fosdal, Johannes; Heegaard, Poul Einar. (2024) Resource Efficiency and Survivability of Network Slice Isolation Strategies After Massive Outages. International Workshop on Reliable Networks Design and Modeling (RNDM)
  Vitenskapelig artikkel
• Vatten, Trond; Heegaard, Poul Einar; Jiang, Yuming. (2024) NFV recovery strategies for critical services after massive failures in optical networks. Optical Switching and Networkning Journal
  Vitenskapelig artikkel
• Urke, Andreas Ramstad; Kure, Øivind; Øvsthus, Knut; Heegaard, Poul Einar. (2024) Autonomous Scheduling for Low-Power Industrial Wireless Networks. Norges teknisk-naturvitenskapelige universitet Norges teknisk-naturvitenskapelige universitet
  Doktorgradsavhandling
• Hossfeld, Tobias; Heegaard, Poul Einar; Kellerer, Wolfgang. (2024) Definition and Application of the Scalability Index: Example of 5G Network Slicing. IEEE Communications Magazine
  Vitenskapelig artikkel
• Patil, Amit Dilip; Meer, Hermann De; Heegaard, Poul Einar; Helvik, Bjarne Emil. (2024) Modeling protection systems in smart active distribution grids for a performance analysis. Energy informatics review.
  Vitenskapelig artikkel
• Hoßfeld, Tobias; Heegaard, Poul Einar; Varela, Martín; Jarschel, Michael. (2024) User-centric Markov reward model for state-dependent Erlang loss systems. Performance evaluation (Print)
  Vitenskapelig artikkel
• Granlund, Henrik; Lindskog, Herman; Heegaard, Poul Einar; Gnanasekaran, Vahiny. (2024) The Status of Operational Technology Cybersecurity within The Norwegian Food Supply Sector. Norges teknisk-naturvitenskapelige universitet Norges teknisk-naturvitenskapelige universitet
  Mastergradsoppgave
• Steffensen, Vilja; Heegaard, Poul Einar; Gnanasekaran, Vahiny. (2024) An Empirical Study of Information Sharing between CSIRT and Municipalities. Norges teknisk-naturvitenskapelige universitet Norges teknisk-naturvitenskapelige universitet
  Mastergradsoppgave
• Janardhanan, Shakthivelu; Samonaki, Maria; Heegaard, Poul Einar; Kellerer, Wolfgang; Machuca, Carmen Mas. (2024) Network Sovereignty: A Novel Metric and Its Application on Network Design. IEEE Transactions on Reliability
  Vitenskapelig artikkel

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
• Gajic, Marija; Lange, Stanislav; Vatten, Trond; Furdek, Marija; Heegaard, Poul Einar. (2023) Survivability Assessment of 5G Network Slicing During Massive Outages.
  Vitenskapelig Kapittel/Artikkel/Konferanseartikkel
• Hossfeld, Tobias; Heegaard, Poul Einar; Kellerer, Wolfgang. (2023) Comparing the Scalability of Communication Networks and Systems. IEEE Access
  Vitenskapelig artikkel
• Hossfeld, Tobias; Varela, Martin; Skorin-Kapov, Lea; Heegaard, Poul Einar. (2023) A Greener Experience: Trade-Offs between QoE and CO2 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.
  Vitenskapelig Kapittel/Artikkel/Konferanseartikkel
• 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 oversiktsartikkel/review

2022

• 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
• 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.
  Vitenskapelig Kapittel/Artikkel/Konferanseartikkel
• 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
• Adrah, Charles Mawutor; Palma, David; Kure, Øivind; Heegaard, Poul Einar. (2022) Deploying 5G architecture for protection systems in smart distribution grids.
  Vitenskapelig Kapittel/Artikkel/Konferanseartikkel

2021

• 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.
  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.
  Vitenskapelig Kapittel/Artikkel/Konferanseartikkel
• Mehmood, Kashif; Mendis, Handunneththi V. Kalpanie; Kralevska, Katina; Heegaard, Poul Einar. (2021) Intent-based Network Management and Orchestration for Smart Distribution Grids.
  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.
  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.
  Vitenskapelig Kapittel/Artikkel/Konferanseartikkel
• Haugli, Fredrik Bakkevig; Heegaard, Poul Einar. (2021) Modeling framework for study of distributed and centralized smart grid system services.
  Vitenskapelig Kapittel/Artikkel/Konferanseartikkel

2020

• Kamisinski, Andrzej; Musumeci, Francesco; Hmaity, Ali; Tornatore, Massimo; Casazza, Marco; Farshad, Arsham. (2020) Resilient NFV Technology and Solutions.
  Faglig kapittel
• Helvik, Bjarne Emil; Vizarreta, Petra; Heegaard, Poul Einar; Trivedi, Kishor; Machuca, Carmen Mas. (2020) Modelling of Software Failures.
  Faglig kapittel
• 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.
  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
• Hossfeld, Tobias; Heegaard, Poul Einar; Skorin-Kapov, Lea; Varela, Martin; Fiedler, Markus. (2020) From QoS Distributions to QoE Distributions: a System's Perspective.
  Vitenskapelig Kapittel/Artikkel/Konferanseartikkel
• 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
• Refvik, Håvard Sandgrind; Heegaard, Poul Einar. (2020) Robustness of short-term load forecasting models for smart grids. Norges teknisk-naturvitenskapelige universitet Norges teknisk-naturvitenskapelige universitet
  Mastergradsoppgave
• Rak, Jacek; Heegaard, Poul Einar; Helvik, Bjarne Emil. (2020) Resilience of communication networks to random failures and disasters: An optimization perspective. Networks
  Vitenskapelig artikkel
• 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.
  Vitenskapelig Kapittel/Artikkel/Konferanseartikkel

2019

• 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
• 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.
  Vitenskapelig Kapittel/Artikkel/Konferanseartikkel
• Ammar, Doreid; Moor, Katrien De; Skorin-Kapov, Lea; Fiedler, Markus; Heegaard, Poul Einar. (2019) Exploring the Usefulness of Machine Learning in the Context of WebRTC Performance Estimation.
  Vitenskapelig Kapittel/Artikkel/Konferanseartikkel
• Moor, Katrien De; Borge, Hege Krokås; Heegaard, Poul Einar. (2019) Young children and the use of video chat: implications for QoE research.
  Vitenskapelig Kapittel/Artikkel/Konferanseartikkel
• Hossfeld, Tobias; Heegaard, Poul Einar; Skorin-Kapov, Lea; Varela, Martin. (2019) Fundamental Relationships for Deriving QoE in Systems.
  Vitenskapelig Kapittel/Artikkel/Konferanseartikkel
• 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
• 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.
  Vitenskapelig Kapittel/Artikkel/Konferanseartikkel
• 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
• 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

2018

• 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
• Heegaard, Poul Einar; Helvik, Bjarne Emil; Rak, Jacek. (2018) Proceedings 10th International Workshop on Resilient Networks Design and Modeling (RNDM). IEEE Press IEEE Press
  Vitenskapelig antologi/Konferanseserie
• Oostenbrink, Jorik; Kuipers, Fernando; Heegaard, Poul Einar; Helvik, Bjarne Emil. (2018) Evaluating Local Disaster Recovery Strategies. Performance Evaluation Review
  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
• Hossfeld, Tobias; Metzger, Florian; Heegaard, Poul Einar. (2018) Traffic modeling for aggregated periodic IoT data.
  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.
  Vitenskapelig Kapittel/Artikkel/Konferanseartikkel
• 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
• Ammar, Doreid; Moor, Katrien De; 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
• Moldovan, Christian; Skorin-Kapov, Lea; Heegaard, Poul Einar; Hossfeld, Tobias. (2018) Optimal Fairness and Quality in Video Streaming with Multiple Users.
  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.
  Vitenskapelig Kapittel/Artikkel/Konferanseartikkel
• 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
• 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
• Zerihun, Tesfaye Amare; Helvik, Bjarne Emil; Heegaard, Poul Einar. (2018) A modeling approach for dependability analysis of smart distribution grids.
  Vitenskapelig Kapittel/Artikkel/Konferanseartikkel

2017

• Xie, Lang; Heegaard, Poul Einar; Jiang, Yuming. (2017) Survivability analysis of a two-tier infrastructure-based wireless network. Computer Networks
  Vitenskapelig artikkel
• Vizarreta, Petra; Trivedi, Kishor; Helvik, Bjarne Emil; Heegaard, Poul Einar; Kellerer, Wolfgang; Machuca, Carmen Mas. (2017) An empirical study of software reliability in SDN controllers.
  Vitenskapelig Kapittel/Artikkel/Konferanseartikkel
• Ammar, Doreid; Moor, Katrien De; Heegaard, Poul Einar. (2017) An Experimental Platform for QoE Studies of WebRTC-based Multi-Party Video Communication.
  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.
  Vitenskapelig Kapittel/Artikkel/Konferanseartikkel
• 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 (JOS)
  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
• Vizarreta, Petra; Heegaard, Poul Einar; Helvik, Bjarne Emil; Kellerer, Wolfgang; Machuca, Carmen Mas. (2017) Characterization of Failure Dynamics in SDN Controllers.
  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
• Nencioni, Gianfranco; Helvik, Bjarne Emil; Heegaard, Poul Einar. (2017) Implementing the Availability Model of a Software-Defined Backbone Network in Möbius. Norges teknisk-naturvitenskapelige universitet Norges teknisk-naturvitenskapelige universitet
  Rapport
• Moor, Katrien De; 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.
  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) Availability Modelling of Software-Defined Backbone Networks.
  Vitenskapelig Kapittel/Artikkel/Konferanseartikkel
• 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
• Sieber, Christian; Heegaard, Poul Einar; Hoßfeld, Tobias; Kellerer, Wolfgang. (2016) Sacrificing efficiency for quality of experience: YouTube's redundant traffic behavior.
  Vitenskapelig Kapittel/Artikkel/Konferanseartikkel
• Ammar, Doreid; Moor, Katrien De; Heegaard, Poul Einar. (2016) Quality of Experience-assessment of WebRTC based video communication. ERCIM News
  Populærvitenskapelig 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
• Heegaard, Poul Einar; Biczok, Gergely; Toka, Lazio. (2016) Sharing is Power: Incentives for Information Exchange in Multi-Operator Service Delivery.
  Vitenskapelig Kapittel/Artikkel/Konferanseartikkel
• Machuca, Carmen Mas; Secci, Stefano; Vizerrata, Petra; Kuipers, Fernando; Gouglidis, Antonios; Hutchison, David. (2016) Technology-related Disasters: A Survey towards Disaster-resilient Software Defined Networks.
  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.
  Vitenskapelig Kapittel/Artikkel/Konferanseartikkel
• Ammar, Doreid; Moor, Katrien De; Heegaard, Poul Einar; Fiedler, Markus; Xie, Min. (2016) Revealing the Dark Side of WebRTC Statistics Collected by Google Chrome.
  Vitenskapelig Kapittel/Artikkel/Konferanseartikkel
• Ammar, Doreid; Moor, Katrien De; Xie, Min; Fiedler, Markus; Heegaard, Poul Einar. (2016) Video QoE killer and performance statistics in WebRTC-based video communication.
  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. Norges teknisk-naturvitenskapelige universitet Norges teknisk-naturvitenskapelige universitet
  Rapport
• Heegaard, Poul Einar; Helvik, Bjarne Emil; Nencioni, Gianfranco; Wäfler, Jonas. (2016) Managed Dependability in Interacting Systems.
  Vitenskapelig Kapittel/Artikkel/Konferanseartikkel

2015

• Hossfeld, Tobias; Heegaard, Poul Einar; Varela, Martin. (2015) QoE beyond the MOS: Added value using quantiles and distributions.
  Vitenskapelig Kapittel/Artikkel/Konferanseartikkel
• Zerihun, Tesfaye Amare; Helvik, Bjarne Emil; Heegaard, Poul Einar; Krogstie, John. (2015) Quantitative Modelling of Digital Ecosystems. ERCIM News
  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
• Heegaard, Poul Einar; Helvik, Bjarne Emil; Mendiratta, Veena. (2015) Achieving Dependability in Software-Defined Networking - A Perspective.
  Vitenskapelig Kapittel/Artikkel/Konferanseartikkel
• Wäfler, Jonas; Heegaard, Poul Einar. (2015) Interdependency in Smart Grid Recovery.
  Vitenskapelig Kapittel/Artikkel/Konferanseartikkel
• Heegaard, Poul Einar; Helvik, Bjarne Emil; Trivedi, Kishor; Machida, Fumio. (2015) Survivability as a Generalization of Recovery.
  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 The Scientific Committee of the Norwegian Smart Grid Centre
  Rapport
• 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.
  Vitenskapelig Kapittel/Artikkel/Konferanseartikkel
• 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
• Sand, Kjell; Heegaard, Poul Einar. (2015) Next Generation Control Centres - State of art and future scenarios. Version 2.0. Norges Teknisk Naturvitenskapelige Universitet Norges Teknisk Naturvitenskapelige Universitet
  Rapport
• Wäfler, Jonas; Heegaard, Poul Einar. (2015) Consequences of Increased Automation in Smart Grids. ERCIM News
  Vitenskapelig artikkel

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.
  Vitenskapelig Kapittel/Artikkel/Konferanseartikkel
• Wäfler, Jonas; Heegaard, Poul Einar. (2013) Structural Dependability Analysis in Smart Grid under Simultaneous Failures.
  Vitenskapelig Kapittel/Artikkel/Konferanseartikkel
• Villa, Bjørn Jonny; Moor, Katrien De; Heegaard, Poul Einar; Instefjord, Anders. (2013) Investigating Quality of Experience in the context of adaptive video streaming: findings from an experimental user study.
  Vitenskapelig Kapittel/Artikkel/Konferanseartikkel
• Villa, Bjørn Jonny; Heegaard, Poul Einar. (2013) Group Based Traffic Shaping for Adaptive HTTP Video Streaming.
  Vitenskapelig Kapittel/Artikkel/Konferanseartikkel
• Xie, Lang; Jiang, Yuming; Heegaard, Poul Einar. (2013) Modelling and Analysis of the Survivability of Telecommunication Networks.
  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
• Villa, Bjørn Jonny; Heegaard, Poul Einar. (2013) A Measurement Study of Active Probing on Access Links.
  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
• 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
• 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
• Xie, Lang; Heegaard, Poul Einar; Jiang, Yuming. (2013) Network Survivability under Disaster Propagation: Modeling and Analysis. IEEE Wireless Communications and Networking Conference
  Vitenskapelig artikkel
• Gullhav, Anders N.; Nygreen, Bjørn; Heegaard, Poul Einar. (2013) Approximating the Response Time Distribution of Fault-­tolerant Multi­-tier Cloud Services.
  Vitenskapelig Kapittel/Artikkel/Konferanseartikkel

2012

• Khan, Razib Hayat; Heegaard, Poul Einar; Ullah, Kazi Wali. (2012) Performance Evaluation of Distributed System Using SPN.
  Vitenskapelig Kapittel/Artikkel/Konferanseartikkel
• 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
• Kuipers, Fernando; Heegaard, Poul Einar. (2012) Self-organizing systems : 6th International Workshop IWSOS 2012. Springer Springer
  Vitenskapelig antologi/Konferanseserie
• Villa, Bjørn Jonny; Heegaard, Poul Einar. (2012) Improving Perceived Fairness and QoE for Adaptive Video Streams.
  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
• Villa, Bjørn Jonny; Heegaard, Poul Einar; Instefjord, Anders. (2012) Improving Fairness for Adaptive HTTP Video Streaming.
  Vitenskapelig Kapittel/Artikkel/Konferanseartikkel

2011

• Villa, Bjørn Jonny; Heegaard, Poul Einar. (2011) Towards Knowledge-driven QoE Optimization in Home Gateways.
  Vitenskapelig Kapittel/Artikkel/Konferanseartikkel
• 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. Norges teknisk-naturvitenskapelige universitet Doktoravhandlinger ved NTNU, 1503-8181 (2011:122)
  Doktorgradsavhandling
• Csorba, Mate Jozsef; Meling, Hein; Heegaard, Poul Einar. (2011) A Bio-inspired Method for Distributed Deployment of Services. New generation computing
  Vitenskapelig artikkel
• Undheim, Astrid; Chilwan, Ameen; Heegaard, Poul Einar. (2011) Differentiated Availability in Cloud Computing SLAs.
  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
• Khan, Razib Hayat; Heegaard, Poul Einar. (2011) A performance modeling framework incorporating service components deployment issue. International Proceedings of Computer Science and Information Technology (IPCSIT)
  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

2010

• Csorba, Mate Jozsef; Heegaard, Poul Einar. (2010) Swarm Intelligence Heuristics for Component Deployment. 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.
  Vitenskapelig Kapittel/Artikkel/Konferanseartikkel
• Csorba, Mate Jozsef; Meling, Hein; Heegaard, Poul Einar. (2010) Ant system for service development in private and public clouds.
  Vitenskapelig Kapittel/Artikkel/Konferanseartikkel
• 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
• Heegaard, Poul Einar; Wittner, Otto. (2010) Overhead Reduction in Distributed Path Management System. Computer Networks
  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
• Villa, Bjørn Jonny; Heegaard, Poul Einar. (2010) Monitoring and control of QoE in media streams by click software router.
  Vitenskapelig Kapittel/Artikkel/Konferanseartikkel
• 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

2009

• Csorba, Mate Jozsef; Meling, Hein; Heegaard, Poul Einar. (2009) Laying Pheromone Trails for Balanced and Dependable Component Mappings.
  Vitenskapelig Kapittel/Artikkel/Konferanseartikkel
• Csorba, Mate Jozsef; Meling, Hein; Heegaard, Poul Einar; Herrmann, Peter. (2009) Foraging for Better Deployment of Replicated Service Components.
  Vitenskapelig Kapittel/Artikkel/Konferanseartikkel
• Østhus, Ivar Conradi; Hansen, Lars-Petter Gunhildsberg; Heegaard, Poul Einar. (2009) Online Broadband Test Tools.
  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
• 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
• Heegaard, Poul Einar; Trivedi, Kishor. (2009) Survivability Modeling with Stochastic Reward Nets. Winter simulation conference : proceedings
  Vitenskapelig artikkel
• Heegaard, Poul Einar; Sandmann, Werner. (2009) Importance Sampling Simulations of Phase-Type Queues. Winter simulation conference : proceedings
  Vitenskapelig artikkel

2008

• 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. (2008) Empirical Data from Mobile and IP Telephony. Journal of Communication Software and Systems
  Vitenskapelig artikkel
• Heegaard, Poul Einar; Trivedi, Kishor. (2008) Survivability in Real-sized Networks Quantified by Analytical Delay Distributions.
  Vitenskapelig Kapittel/Artikkel/Konferanseartikkel
• Heegaard, Poul Einar; Trivedi, Kishor. (2008) Survivability Quantification of Communication Services.
  Vitenskapelig Kapittel/Artikkel/Konferanseartikkel
• Kjeldsen, Vebjørn; Wittner, Otto Jonassen; Heegaard, Poul Einar. (2008) Distributed and Scalable Path Management by a System of Cooperating Ants.
  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

2007

• Heegaard, Poul Einar. (2007) Empirical Observations of Traffic Patterns in Mobile and IP Telephony.
  Vitenskapelig Kapittel/Artikkel/Konferanseartikkel
• Heegaard, Poul Einar; Sandmann, Werner. (2007) Evaluating Differentiated Quality of Service Parameters in Optical Packet Switching.
  Vitenskapelig Kapittel/Artikkel/Konferanseartikkel
• Heegaard, Poul Einar; Sandmann, Werner. (2007) Efficient Estimation of Loss Rates in Optical Packet Switched Networks with Wavelength Conversion.
  Vitenskapelig Kapittel/Artikkel/Konferanseartikkel
• Heegaard, Poul Einar. (2007) Evolution of Traffic Patterns in Telecommunication Systems.
  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
• Stray, Petter; Jelle, Thomas; Heegaard, Poul Einar. (2007) Field Test of Mobile Wi-Fi Terminals in a Wireless City.
  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
• 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
• 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; 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 Jonassen. (2006) Self-tuned Refresh Rate in a Swarm Intelligence Path Management System. Lecture Notes in Computer Science (LNCS)
  Vitenskapelig artikkel
• Heegaard, Poul Einar; Fuglem, Ingebrigt. (2006) Demonstrating ant-based monitoring on software IP routers (Deliverable 14). BISON project BISON project
  Rapport

2005

• 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; Helvik, Bjarne Emil; Andreassen, Ragnar. (2005) Application of Rare Event Techniques to Trace Driven Simulation.
  Vitenskapelig Kapittel/Artikkel/Konferanseartikkel
• Paquereau, Laurent; Viken, Brynjar; Heegaard, Poul Einar. (2005) Combining performance monitoring and location data in wireless networks.
  Vitenskapelig Kapittel/Artikkel/Konferanseartikkel
• 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

• Heegaard, Poul Einar. (2004) Evaluation plan (Deliverable 04). BISON project BISON project
  Rapport
• Heegaard, Poul Einar. (2004) Models for Basic Services in AHN, P2P Networks (Deliverable 05). BISON project 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) Implementation of basic services in AHN, P2P and Grid networks (Deliverable 06). BISON project BISON project
  Rapport
• Heegaard, Poul Einar. (2004) Evaluation of basic services in AHN, P2P and Grid networks (Deliverable 07). BISON project BISON project
  Rapport

2002

• Wittner, Otto; Heegaard, Poul Einar; Helvik, Bjarne Emil. (2002) Swarm Based Distributed Search in the AMIGOS Environment. [Mangler utgivernavn] [Mangler utgivernavn]
  Rapport

2001

• Viken, Brynjar Åge; Heegaard, Poul Einar. (2001) A Distributed Test Environment for IP Performance. Telektronikk
  Populærvitenskapelig 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
• Görg, Carmelita; Lamers, Eugen; Fuß, Oliver; Heegaard, Poul Einar. (2001) Rare Event Simulation.
  Vitenskapelig Kapittel/Artikkel/Konferanseartikkel

1999

• Emstad, Peder Johannes; Heegaard, Poul Einar; Helvik, Bjarne Emil. (1999) Pålitelighet og ytelse i informasjons- og kommunikasjonssystem. Grunnlag. Institutt for telematikk, NTNU Institutt for telematikk, NTNU
  Kompendium

1998

• Heegaard, Poul Einar; Helvik, Bjarne. (1998) Efficient simulation of network performance by importance sampling. Norges teknisk-naturvitenskapelige universitet Dr.ingeniøravhandling, 0809-103X (1998:33)
  Doktorgradsavhandling
• Heegaard, Poul Einar. (1998) A scheme for adaptive biasing in importance sampling. AEU - International Journal of Electronics and Communications
  Vitenskapelig artikkel