Publications

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2016

Heegaard, Poul E and Biczók, Gergely and Toka, László (2016) Sharing is Power: Incentives for Information Exchange in Multi-Operator Service Delivery. In: IEEE GLOBECOM. IEEE Press, New York, p. 1. pdf

Maria Bartnes, Nils Brede Moe, Poul Heegaard. “The future of information security incident management training: A case study of electrical power companies”. Computers & security (Print). vol. 61. 2016

Anders Nordby Gullhav, Bjørn Nygreen,Poul Heegaard. “Simulation of the response time distribution of fault-tolerant multi-tier cloud services”. Journal of Simulation. 2016. [pdf]. DOI: 10.1057/s41273-016-0042-9

Hossfelt, 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. Journal on Quality and User Experience. vol. 1 (1). pdf

Heegaard, Poul Einar; Helvik, Bjarne Emil; Nencioni, Gianfranco; Wäfler, Jonas. Managed Dependability in Interacting Systems. I: Principles of Performance and Reliability Modeling and Evaluation Essays in Honor of Kishor Trivedi on his 70th Birthday. Springer 2016 ISBN 978-3-319-30597-4. s. 197-226 pdf

Hossfelt, Tobias; Skorin-Kapov, Lea; Heegaard, Poul Einar; Varela, Martin. Definition of QoE Fairness in Shared Systems. IEEE Communications Letters. IEEE Communications Letters, Volume PP Issue 99. Oct 2016. Print ISSN: 1089-7798. pdf. DOI: 10.1109/LCOMM.2016.2616342

Sieber, Christian; Heegaard, Poul Einar; Hoßfeld, Tobias; Kellerer, Wolfgang. Sacrificing Efficiency for Quality of Experience: YouTube’s Redundant Traffic Behavior. I: Proceedings from IFIP Networking 2016. IEEE Computer Society 2016 ISBN 978-3-901882-83-8. s. 503-511 pdf

Hoßfeld, T., Skorin-Kapov, L., Heegaard, P.E., Varela, M., Chen, K. (2016) On Additive and Multiplicative QoS-QoE Models for Multiple QoS Parameters. Proc. PQS 2016 5th ISCA/DEGA Workshop on Perceptual Quality of Systems, 44-48. DOI: 10.21437/PQS.2016-10. ISSN 2312-2846. pdf

Hu, Chengchen; Li, Hao; Jiang, Yuming; Cheng, Yu; Heegaard, Poul Einar. (2016) Deep Semantics Inspection over Big Network Data at Wire Speed. IEEE Network. vol. 30 (1). pdf

2015

Andres Gonzalez, Pål Grønsund, Kashif Mahmood, Bjarne Helvik, Poul Heegaard, Gianfranco Nencioni. “Service availability in the NFV Virtualised Evolved Packet Core”. In proceeding from IEEE Globecom 2015, Dec 6-10 2015, San Diego, USA

Jonas Wäfler, Poul E. Heegaard “Interdependency in Smart Grid Recovery”. In proceedings from the 7th International Workshop on Reliable Networks Design and Modelling (RNDM) 2015, Oct 5-7, 2015. Munich, Germany. 10.1109/RNDM.2015.7325230

Poul E. Heegaard, Bjarne E. Helvik, Veena B. Mendiratta. “Achieving Dependability in Software-Defined Networking - A Perspective”. In proceedings from the 7th International Workshop on Reliable Networks Design and Modelling (RNDM) 2015, Oct 5-7, 2015. Munich, Germany. 10.1109/RNDM.2015.7324310

Jonas Wäfler and Poul Heegaard “How to use Mobile Communication in Critical Infrastructures: a Dependability Analysis”. In proceedings from SAFECOMP DECSoS Workshop 2015, Sept 22-25, 2015, Delft, the Netherlands 10.1007/978-3-319-24249-1_29

Poul E. Heegaard, Bjarne E. Helvik, Kishor S. Trivedi, Fumio Machida. Survivability as a generalization of recovery. DRCN 2015: 133-140. 24-27 March 2015, Kansas City, MO, IEEE 10.1109/DRCN.2015.7149004

Tobias Hoßfeld, Poul E. Heegaard, Martín Varela. QoE beyond the MOS: Added value using quantiles and distributions. QoMEX 2015: 1-6. 26-29 May 2015. Pylos-Nestoras, Greece, IEEE 10.1109/QoMEX.2015.7148142.

Poul E. Heegaard, Erwin Schoitsch. Introduction to the Special Theme - Trustworthy Systems of Systems. ERCIM News 2015(102) (2015)

Jonas Wäfler, Poul E. Heegaard. Consequences of Increased Automation in Smart Grids. ERCIM News 2015(102) (2015)

Tesfaye A. Zerihun, Bjarne E. Helvik, Poul E. Heegaard, John Krogstie. Quantitative Modelling of Digital Ecosystems. ERCIM News 2015(102) (2015)

Razib Hayat Kahn, Poul E. Heegaard. Software Performance Evaluation Utilizing UML Specification and SRN Model and Their Formal Representation. Journal of Software 2015 ;Volum 10.(5) s. 499-523

2014

Jonas Wäfler, Poul E. Heegaard: Quantifying Influence of Strategies and Network Properties in Repairing Simultaneous Failures in Smart Grid. NIK 2014. NOv, 17-19, 2014. Fredrikstad, Norway.

2013

Jonas Wäfler and Poul E. Heegaard. “Structural Dependability Analysis in Smart Grid under Simultaneous Failures”. Published at IEEE SmartGridComm 2013 Symposium - Cyber-Physical WAMPAC. pp 67-72. Oct 21-24, 2013. Vancouver, Canada 10.1109/SmartGridComm.2013.6687935

Bjørn Villa and Poul E. Heegaard. “A Measurement Study of Active Probing on Access Links”. Published at 19th EUNICE Workshop on Advances in Communication Networking, 28-30 August 2013, Chemnitz, Germany. Springer link.

Jonas Wäfler and Poul E. Heegaard. “Interdependency Modeling in Smart Grid and the Influence of ICT on Dependability”. Published at 19th EUNICE Workshop on Advances in Communication Networking, 28-30 August 2013, Chemnitz, Germany. Springer link.

Lang Xie, Poul E. Heegaard, Yuming Jiang. “Modeling and Quantifying the Survivability of Telecommunication Network Systems under Fault Propagation”. Published at 19th EUNICE Workshop on Advances in Communication Networking, 28-30 August 2013, Chemnitz, Germany Springer link

2012

Bjørn J. Villa, Poul E. Heegaard. “Improving Fairness in QoS and QoE domains for Adaptive Video Streaming”. International Journal On Advances in Networks and Services. IARIA. 2012. pp 291 - 303. ISSN 1942-2644

Razib Hayat Khan, Fumio Machida, Poul E. Heegaard, and Kishor S. Trivedi. “A Performability Modeling Framework Considering Service Components Deployment”. International Journal On Advances in Networks and Services. IARIA. 2012. pp 346 - 366. ISSN 1942-2644

Razib Hayat Khan, Poul E. Heegaard and Kazi Wali Ullah “Performance Evaluation of Distributed System Using SPN”. Chapter 11 in “Petri Nets - Manufacturing and Computer Science”, pp. 257-293, Edited by Pawel Pawlewski (492 pages), InTech, August 29, 2012, ISBN: 978-953-51-0700-2, 2012.

Ameen Chilwan, Astrid Undheim and Poul E. Heegaard. “Effects of Dynamic Cloud Cluster Load on Differentiated Service Availability”. In proceedings from the 6th IEEE International Workshop on Performance Modeling and Evaluation in Computer and Telecommunication Networks, Munich, Germany. Jul 30 - Aug 2, 2012.

Andreas Aurelius, Åke Arvidsson, Poul Heegaard, Bjørn Villa, Maria Kihl, Yichi Zhang. “Residential broadband Internet traffic - analysis of link load in a Swedish municipal network”. Presented at the 8th Swedish National Computer Networking Workshop SNCNW 2012. Stockholm, June 7-8, 2012

Kuipers, Fernando A.; Heegaard, Poul E. (Eds.). "Self-Organizing Systems". 6th IFIP TC 6 International Workshop, IWSOS 2012, Delft, The Netherlands, March 15-16, 2012, Lecture Notes in Computer Science, Vol. 7166. 2012, 130 p. ISSN 0302-9743. e-ISSN 1611-3349. ISBN 978-3-642-28582-0. e-ISBN 978-3-642-28583-7. [DOI]

Razib Khan and Poul Heegaard. “From UML to SRN: A Performability Modeling Framework Considering Service Components Deployment”. The Eighth International Conference on Networking and Services (ICNS 2012). March 25-30, 2012 - St. Maarten, Netherlands Antilles

Bjørn J. Villa and Poul E. Heegaard. “Improving Perceived Fairness and QoE for Adaptive Video Streams”. The Eighth International Conference on Networking and Services (ICNS 2012). March 25-30, 2012 - St. Maarten, Netherlands Antilles

2011

Poul E. Heegaard and Kishor S. Trivedi. “Network Survivability Modeling and Quantification”. Tutorial at “The 23rd International Teletraffic Congress”. September 6-8, 2011, San Francisco, USA. Slides are available here.

Bjørn J. Villa and Poul E. Heegaard. “A Monitor Plane Component for Adaptive Streaming”. To be presented at Norsk Informatikk Konferanse (NIK) 2011. Tromsø, Norway, Nov 21-23, 2011.

Astrid Undheim, Ameen Chilwan and Poul Heegaard. “Differentiated Availability in Cloud Computing SLAs”. In proceedings from at Grid 2011: 12th IEEE/ACM International Conference on Grid Computing. 22-23 September 2011. Lyon, France.

Bjørn J. Villa and Poul E. Heegaard. “Towards knowledge driven QoE Optimization in Home Gateways” Accepted for publications at The Seventh International Conference on Networking and Services. Mestre/Venice. 2011.

Razib Khan and Poul Heegaard. “A Performance Modeling Framework Considering Service Components Deployment Issue” Accepted for publication at the 2011 International Conference on Computer Communication and Management - ICCCM 2011. Sidney, Australia, May 2011.

2010

Máté J. Csorba and Poul E. Heegaard. “Optimization and Service Deployment in Private and Public Clouds”. ERCIM News No. 83 (October 2010), Special Theme: “Cloud Computing Platforms, Software, and Applications”.

Bjørn J. Villa and Poul E. Heegaard. “Monitoring and Control of QoE in Media Streams by Click”. In proceedings from Norsk Informatikk Konferanse (NIK) 2010. Gjøvik, Norway, Nov 22-24, 2010.

Lang Xie, Poul E. Heegaard, Jin Zhang, and Jie Xiang. “System State aware Admission Control scheme for IEEE 802.16 WiMAX-based healthcare system”. In Proceedings from the 6th International Wireless Communications and Mobile Computing Conference, IWCMC 2010, Caen, France, June 28 - July 2, 2010. ACM Press 2010 ISBN 978-1-4503-0062-9.

Razib Hayat Khan, Poul E. Heegaard. “A Performance modeling framework incorporating cost efficient deployment of collaborating components”. In proceedings from 2nd International Conference on Software Technology and Engineering (ICSTE 2010), San Juan, Puerto Rico, USA, Oct 3-5, 2010.

Jonathan Brugge, Laurent Paquereau, Poul E. Heegaard. “Experience Report on Implementing and Simulating a Routing Protocol in NS-2 and NS-3”. In proceedings from The Second International Conference on Advances in System Simulation (SIMUL-2010), August 22-27, 2010 - Nice, France.

Razib Hayat Khan, Poul E. Heegaard. “Translation from UML to Markov Model: A Performance modeling Framework for Managing Behavior of Multiple Collaborative Sessions and Instances”. In proceedings from IEEE 3rd International Conference on Computer Science and Information Technology (IEEE ICCSIT 2010), Chengdu, China, July 9 - 11, 2010.

Razib Hayat Khan, Poul E. Heegaard. “Translation from UML to SPN Model: A Performance modeling Framework for Managing Behavior of Multiple Collaborative Sessions and Instances”. In proceedings from IEEE International Conference on Computer Design and Applications (ICCDA 2010), Qinhuangdao, Hebei, China, June 25-27, 2010.

Poul E. Heegaard, Otto J. Wittner. “Overhead Reduction in Distributed Path Management System”. Computer Networks, Volume 54, Issue 6, 29 April 2010, Pages 1019-1041. Elsevier. [DOI]

Máté J. Csorba and Poul E. Heegaard. “Swarm Intelligence Heuristics for Component Deployment”. In proceedings from IFIP EUNICE 2010, June 28-30, 2010, Trondheim, Norway

Lang Xie, Poul E. Heegaard, Jin Zhang, Jie Xiang. “System State aware Admission Control scheme for IEEE 802.16 WiMAX-based healthcare system”. In proceedings from 6th International Wireless Communication & Mobile Computing Conference (IWCMC 2010). June 28 - July 2, 2010, Caen, France.

Mate J. Csorba, Hein Meling, Poul E. Heegaard, “Ant System for Service Deployment in Private and Public Clouds”. In proceedings from BADS 2010 (Workshop on Bio-Inspired Algorithms for Distributed Systems), Washington, DC, USA, June 11, 2010.

2009

Razib Hayat Khan, Poul Heegaard. “Translation from UML to Markov Model: A performance modeling framework.” Int. Joint Conference on Computer, Information, and Systems Sciences, and Engineering (CISSE 2009). Dec 4-12, 2009.

Poul E. Heegaard, Kishor S. Trivdi. “Survivability Modeling with Stochastic Reward Nets”. In proceedings from Winter Simulation Conference, pp 807-818, Dec. 13-16, 2009, Austin, TX, USA.

Poul E. Heegaard, Werner Sandmann. “Importance Sampling Simulations of Phase-Type Queues”. In proceedings from Winter Simulation Conference, pp 1136-1145, Dec. 13-16, 2009, Austin, TX, USA.

Ivar Conradi Østhus, Lars-Petter Gunhildsberg Hansen, Poul E. Heegaard. “Online Broadband Test Tools”. In proceedings from Norsk Informatikk Konferanse 2009. Tapir Akademisk Forlag 2009 ISBN 978-82-519-2491-7. s. 61-72

Mona Holsve Ofigsbø, Stig Frode Mjølsnes, Poul E. Heegaard, Leif Nilsen. “Reducing the Cost of Certificate Revocation: A Case Study”. In proceedings from EUROPKI'09 - Sixth European Workshop on Public Key Services, Applications and Infrastructures; 2009-09-10 - 2009-09-11

Mate J. Csorba, Hein Meling, Poul E. Heegaard, Peter Herrmann. “Foraging for better deployment of replicated service components.” In proceedings from 9th IFIP International Conference on Distributed Applications and Interoperable Systems (DAIS'09). June 9-12, 2009. Lisbon, Portugal [DOI]

Mate Csorba, Poul E. Heegaard and Peter Herrmann. “Component Deployment Using Parallel Ant-nests”. To appear in International Journal on Autonomous and Adaptive Communications Systems (IJAACS). ISSN (Online): 1754-8640. ISSN (Print): 1754-8632. InderScience publishers.

Poul E. Heegaard and Kishor Trivedi. “Network Survivability Modeling”. Computer Networks Volume 53, Issue 8 (2009), pp. 1215-1234. Elsevier. [DOI]

2008

Poul E. Heegaard and Kishor Trivedi. “Survivability Quantification of Real-Sized Networks Including End-to-End Delay Distributions”. In proceedings from The Third International Conference on Systems and Networks Communications (ICSNC 2008). October 26-31, 2008 - Sliema, Malta

Mate Csorba, Poul E. Heegaard and Peter Herrmann. Adaptable Model-based Component Deployment Guided by Artificial Ants. In proceedings from Second International Conference on Autonomic Computing and Communication Systems (Autonomics 2008). Sept. 23-25 2008, Turin, Italy

Poul E. Heegaard and Werner Sandmann. “Ant Colony Optimized Importance Sampling: Principles, Applications and Challenges”. In proceedings from 7th International Workshop on Rare Event Simulation (RESIM 2008). September 24-26 2008, Rennes, France

Vebjørn Kjeldsen, Otto J. Wittner and Poul E. Heegaard. Distributed and Scalable Path Management by a System of Cooperating Ants. In proceedings from The 2008 International Conference on Communications in Computing (CIC 2008). July 14-17, 2008, Las Vegas, Nevada, USA

Poul E. Heegaard and Kishor Trivedi. Survivability Qunatification of Communication Services. To be presented at The 38th Annual IEEE/IFIP International Conference on Dependable Systems and Networks (DSN 2008). June 24-27, 2008, Anchorage, AK, USA

Mate Csorba, Poul E. Heegaard and Peter Herrmann. Cost Efficient Deployment of Collaborating Components. To be presented at Distributed Applications and Interoperable Systems (DAIS'08). June 4-6, 2008, Oslo, Norway

Poul E. Heegaard, Bjarne E. Helvik, and Otto J Wittner. The Cross Entropy Ant System for Network Path Management. Telektronikk Special issue on Network analysis, 2008, vol. 104(1), p 19-40.

Poul E. Heegaard. Empirical Data from Mobile and IP Telephony. Journal of Communication Software and Systems (JCOMSS). March 2008. vol 4(1), pp 54-61, ISSN 1845-6421

2006-2007

Poul E. Heegaard and Werner Sandmann. Ant-based approach for determining the change of measure in importance sampling. In proceedings from Winter Simulation Conference 2007. December 12-14, 2007. Washington D.C., USA

Petter Stray, Poul E. Heegaard, Thomas Jelle. Field Test of Mobile Wi-Fi Terminals in a Wireless City. Norsk informatikkonferanse (NIK) 2007: Tapir Akademisk Forlag 2007. ISBN 978-82-519-2272-2. p. 165-176

Poul E. Heegaard and Werner Sandmann. Efficient Simulation of Optical Ring Networks with Intermittent Transceiver Faults. In proceedings from IEEE International Symposium on Modeling,Analysis, and Simulation of Computer and Telecommunication Systems (MASCOTS). October 24-26, 2007. Istanbul, Turkey.

Poul E. Heegaard and Werner Sandmann. Evaluating Differentiated Quality of Service Parameters in Optical Packet Switching. In Proceedings from The 7th International Conference on Next Generation Teletraffic and Wired/Wireless Advanced Networking (NEW2AN 2007). September 10 - 14, 2007, St.Petersburg, Russia

Poul E. Heegaard. Empirical Observations of Traffic Patterns in Mobile and IP Telephony. In Proceedings from The 7th International Conference on Next Generation Teletraffic and Wired/Wireless Advanced Networking (NEW2AN 2007). September 10 - 14, 2007, St.Petersburg, Russia

Poul E. Heegaard and Werner Sandmann. Efficient Estimation of Loss Rates in Optical Packet Switched Networks with Wavelength Conversion. In Proceedings from the Second International Conference on Systems and Networks Communications (ICSNC 2007). August 25-31, 2007. Cap Esterel, French Riviera, France

Poul E. Heegaard. Evolution of traffic patterns in telecommunication systems. In Proceedings from ChinaCom - International Conference on Communications and Networking in China. August 22-24, 2007. Shanghai, China

Peder J. Emstad, Poul E. Heegaard, Bjarne E. Helvik, Laurent Paquereau. Dependability and performance with discrete event simulation. : Tapir akademiske forlag 2007. 272 s. NTNU

Åsmund Tjora, Amund Skavhaug and Poul E. Heegaard. A Mathematical Model for Run-Time Distributions in a Fault Tolerant System with Nonhomogeneous Passive Replicas. In DECOS/ERCIM Workshop on Dependable Embedded Systems. ERCIM 2007. ISBN 2-912335-29-9.

Heegaard, Poul Einar; Wittner, Otto Jonassen. Self-tuned Refresh Rate in a Swarm Intelligence Path Management System. In Proceedings from the International EuroNGI Workshop on Self-Organizing Systems (IWSOS 2006), Lecture Notes in Computer Science 2006 (4124):148-162, 18.09.2006 - 20.09.2006

Heegaard, Poul Einar; Wittner, Otto Jonassen. Restoration performance vs. overhead in a swarm intelligence path management system . In Proceedings from 5th International Workshop on Ant Colony Optimization and Swarm Intelligence (ANTS2006), Lecture Notes in Computer Science 2006 (4150):282-293, 04.09.2006 - 07.09.2006

Heegaard, Poul Einar; Fuglem, Ingebrigt. AntPing - prototype demonstrator of swarm based path management and monitoring (Poster). In International Workshop on Self-Organizing Systems 2006 (IWSOS 2006); 18.09.2006 - 20.09.2006

Poul E. Heegaard, Ingebrigt Fuglem. Demonstrator 1: Ant-based monitoring on software IP routers. (Deliverable 14): BISON IST-2001-38923. 2006.

2004-2005

Heegaard, Poul Einar; Helvik, Bjarne Emil; Andreassen, Ragnar. Application of Rare Event Techniques to Trace Driven Simulation. In Proceedings of the 2005 Winter Simulation Conference: OmniPress 2005. ISBN 0-7803-9520-4. s. 509-518. 04.12.2005 - 07.12.2005

Paquereau, Laurent; Viken, Brynjar; Heegaard, Poul Einar. networks. In Combining performance monitoring and location data in wireless. Norsk informatikkonferanse (NIK) 2005: Tapir Akademisk Forlag 2005. ISBN 82-519-2081-7. s. 137-148

Poul E. Heegaard, Otto Wittner, Bjarne E. Helvik. Self-Management of Virtual Paths in Dynamic Networks. In “Self-Star Properties in Complex Information Systems”. Editors Ozalp Babaoglu, Mark Jelasity, Alberto Montresor, Christof Fetzer, Stefano Leonardi, Aad van Moorsel and Maarten van Steen. pp. 417-432. “Lecture Notes in Computer Science, Hot Topics (volume 3460). Springer-Verlag. 2005

Anders Mykkeltveit, Poul Heegaard, Otto Wittner, Realization of a Distributed Route Management System on Software Routers In Proceedings of Norsk Informatikkonferanse, Stavanger, Norway, 29. nov. - 1. dec 2004.

Heegaard, P. E., Wittner, O., Nicola, V., Helvik, B. E. Distributed Asynchronous Algorithm for Cross-Entropy-Based Combinatorial Optimization. In proceedings from Rare Event Simulation and Combinatorial Optimization (RESIM COP 2004), Sept. 7-8, 2004.

Heegaard, P.E. ; Ryland, J. Single point passive measurements for estimation of two-way delay characteristics. In proceedings from 17th Nordic Teletraffic Seminar; August 25-27, 2004.

Heegaard, Poul Einar; Viken, Brynjar. Performance evaluation of a low-cost network monitor. In proceedings from 17th Nordic Teletraffic Seminar; August 25-27, 2004.

Hesby, Nina; Heegaard, Poul Einar; Wittner, Otto. Robust Connections in IP Networks Using Primary and Backup Path. In proceedings from 17th Nordic Teletraffic Seminar; August 25-27, 2004.

Gianni Di Caro, Frederick Ducatelle, Poul Heegaard, Mark Jelasity, Roberto Montemanni, Alberto Montresor. Evaluation of basic services in AHN, P2P and Grid networks, BISON IST-2001-38923, 2005.

Gianni Di Caro, Frederick Ducatelle, Poul Heegaard, Mark Jelasity, Roberto Montemanni, Alberto Montresor. Implementation of basic services in AHN, P2P and Grid networks, BISON IST-2001-38923, 2005.

Geoffrey Canright, Andreas Deutsch, Gianni Di Caro, Frederick Ducatelle, Niloy Ganguly, Poul Heegaard, Márk Jelasity, Roberto Montemanni Evaluation plan, BISON IST-2001-38923, 2005.

Alberto Montresor, Gianni Di Caro, Poul E. Heegaard. Architecture of the Simulation Environment (Deliverable 11). BISON IST-2001-38923, 2004.

Gianni Di Caro, Frederick Ducatelle, Niloy Ganguly, Poul Heegaard, Mark Jelasity, Roberto Montemanni. Models for Basic Services in AHN, P2P Networks. BISON IST-2001-38923, 2004.

2002-2003

Otto Wittner, Poul E. Heegaard, Bjarne E. Helvik. Scalable Distributed Discovery of Resource Paths in Telecommunication Networks using Cooperative Ant-like Agents. Congress on Evolutionary Computation (CEC2003), December 8-12, Canberra, Australia. (pdf)

Poul E. Heegaard and Brynjar Å. Viken. Adaptive Active Measurements of the Performance at Bottlenecks in IP Based Networks. In proceedings from 16th Nordic Teletraffic Seminar (NTS-16), pp 349-360, August 21-23, 2002 - Espoo, Finland

Heidi Kjønsberg, Olav Østerbø¸, Poul E. Heegaard, Egil Aarstad. On the Statistical Behaviour of Competing TCP Connections in a Bottleneck Router. In proceedings from 16th Nordic Teletraffic Seminar (NTS-16), pp 139-150, August 21-23, 2002 - Espoo, Finland

2001-2000

Poul E. Heegaard. GenSyn - a Java- based Generator of Synthetic Internet Traffic. Submitted for publication in Advances in Performance Evaluations, 2001.

Carmelita Görg, Eugen Lamers, Oliver Fuß, Poul E. Heegaard. Rare Event Simulation. 2001, In COST report 257.

Poul E. Heegaard and Brynjar Å. Viken. A Distributed Test Environment for IP Performance Evaluation. In Telektronikk, 2001. vol. 97(2/3),pp 245-268. Special issue on Traffic Engineering in IP networks.

Görg, Carmelita; Lamers, Eugen; Fuß, Oliver; Heegaard, Poul Einar. Rare Event Simulation. I: Proceedings of the European COST (257) telecommunication Symposium: Kluwer Academic Press 2001. ISBN 0-7923-7547-5. s. 365-396.

Mette Røhne, Bjørn Netland, Irena Grgic, Harald Pettersen, Poul Heegaard. Handling QoS in Full Service Networks, ConTEL 2001 - 6th International Conference on Telecommunications June 13-15, 2001, Zagreb, Croatia

Poul E. Heegaard and Brynjar Å. Viken. GenSyn - generator of synthetic Internet traffic. In Network Analysis Times. 2001. Vol 2(1) http://moat.nlanr.net/NATimes/april2001.pdf

Poul E. Heegaard. GenSyn - a Java based generator of synthetic Internet traffic linking user behaviour models to real network protocols. In proceedings from ITC Specialist Seminar on IP Traffic Measurement, Modeling and Management, Sep 18-20, 2000, Monterey, CA (USA)

Poul E. Heegaard. GenSyn - a generator of synthetic Internet traffic used in QoS experiments. (pdf: 134 kbytes)In proceedings from 15th Nordic Teletraffic Seminar. August 22-24, 2000 - Lund, Sweden.

Poul E. Heegaard: “GenSyn - a Java-based generator of synthetic Internet traffic” (slides). UNINETT testnet seminar, University of Tromsø¸, Jan 26-27 2000.

1995-1999

Poul E. Heegaard: Importance sampling and application to network simulation. 15th International Teletraffic congress, ITC'16, Edinburgh, UK, June 7-11 1999. Impromptu session on “Rare Event Simulation” are there techniques for non specialists?

Poul E. Heegaard and Bjarne E. Helvik. On the use of likelihood ratio as indicator of the accuracy of importance sampling estimates. RESIM'99, University of Twente, The Netherlands, March 11-12, 1999.

Poul E. Heegaard: “Can importance sampling be used for general network simulations?”, 4th International Workshop on Performability Modeling of Computer and Communication Systems (PMCCS-4), College of William and Mary, Williamsburg, VA, USA, September 4-6, 1998.

Poul E. Heegaard, Bjarne E. Helvik, Norvald Stol: Genetic algorithms for dimensioning of full service access networks. In The 14'th Nordic Teletraffic Seminar (NTS-14), Copenhagen, Denmark, 18-20 August 1998.

Poul E. Heegaard: The applicability of importance sampling in performance simulation of networks. In The 14'th Nordic Teletraffic Seminar (NTS-14), Copenhagen, Denmark, 18-20 August 1998.

Poul E. Heegaard: “Adaptive Rare Event Simulation of Telecommunication Networks”. INFORMS International Meeting, Tel-Aviv-Yafo, Israel, June 28 –July 1, 1998.

Poul E. Heegaard. A Scheme for Adaptive Biasing in Importance sampling. In AEÜ International Journal of Electronics and Communication Special issue on Rare Event Simulation.

Poul E. Heegaard: “Efficient simulation of network performance by importance sampling”. Dr .ing. thesis from Norwegian University of Science and Technology (NTNU), Department of Telematics, June 1998.

Poul E. Heegaard: “Efficient simulation of network performance”, Poster, Winter Simulation Conference, Atlanta, GA, USA December 7-10, 1997.

Poul E. Heegaard: “Adaptive Biasing of Importance Sampling Parameters in Simulation of Telecommunication Network”, PhD Colloquium, Winter Simulation Conference, Atlanta, GA, USA, December 7-10, 1997.

Poul E. Heegaard. A survey of Speedup simulation techniques. Workshop on Rare Event Simulation. Aachen, Germany, Aug. 28-29, 1997. Session 1: Opening session & System Reliability.

Poul E. Heegaard. A Scheme for Adaptive Biasing in Importance sampling. Workshop on Rare Event Simulation. Aachen, Germany, 28-29 Aug., 1997. Session 4: Tandem Queues and Networks.

Poul E. Heegaard. Efficient simulation of network performance by importance sampling. 15th International Teletraffic congress - ITC 15. Washington D.C., USA, 23-27 June, 1997. Session: Simulation, Measurement and Data Analysis

Poul E. Heegaard: Adaptive Optimization of Importance Sampling for Multi-Dimensional State Space Models with Irregular Resource Boundaries. In P.Emstad,B.Helvik, and A.Myskja, editors, The 13'th Nordic Teletraffic Seminar (NTS-13), pages 176-189, Trondheim, Norway, 20-22 August 1996.

Ragnar Ø. Andreassen, Poul E. Heegaard, Bjarne E. Helvik: Importance Sampling for Speed-up Simulation of Heterogeneous MPEG Sources. In P.Emstad,B.Helvik, and A.Myskja, editors, The 13'th Nordic Teletraffic Seminar (NTS-13), pages 190-203, Trondheim, Norway, 20-22 August 1996.

Poul E. Heegaard: Rare event provoking simulation techniques. In proceeding of the International Teletraffic Seminar (ITS), Nov. 28 - Des. 1, 1995 in Bangkok, Thailand. Session III: Performance Analysis I.

Poul E. Heegaard: Comparison of speed-up techniques for simulation. In proceeding of the 12. Nordiske Teletrafikk Seminar (NTS-12), 22-24 August 1995 in Helsinki, Finland. Session 8: Intelligent Network Performance.

Poul E. Heegaard: Speed-up techniques for high-performance evaluation. Telektronikk, vol. 91(2/3), pp 195-207, 1995. Special issue on teletraffic.

older

Bjarne E. Helvik and Poul E. Heegaard. A Technique for Measuring Rare Cell Losses in ATM Systems (57 kbytes). STF40 A94083. Reprint from 14th International Teletraffic congress - ITC 14. Antibes Juan-les-Pins, France 6-10 June, 1994. Session D31: B-ISDN Network Management and Design . pp 917-930.

Poul E. Heegaard and Bjarne E. Helvik: “Establishing ATM Source Models for Traffic Measurements”. In proceedings from 11. Nordiske Teletrafikk Seminar (NTS- 11), 24-26 August 1993 in Stockholm. Session 9: “Datatrafik i ATM-nät”.

Poul E. Heegaard and Bjarne E. Helvik: “Dependability Simulation of Systems Modelled by Local State Diagrams; Application of importance sampling”. In proceedings from Nordic Seminar on Dependable Computing Systems 1992 (NSDCS'92), Trondheim 19-21 August 1992. Session: Modelling av evaluation, pp. 426-441.

Poul E. Heegaard, Bjarne E. Helvik and Norvald Stol: “Efficient traffic algorithms for general distributed resource handling problems”. In proceedings from 10. Nordiske Teletrafikk Seminar (NTS-10), 25-27 August 1992 i Århus. Session 3: Dimension methods.

Poul E. Heegaard, Bjarne E. Helvik and Eigil Gotaas: “Synchronized Local State Diagram: A modelling methodology under development”. STF40 A91156. In proceedings from Safety of Computer Control Systems 1991 (SAFECOMP'91), 30 October-1 November 1991, in Trondheim, Session: Assessment I, pp. 83-86.

Poul E. Heegaard, Bjarne E. Helvik and Eigil Gotaas: “Local State Diagram: A modelling methodology under development”. In proceedings from Feltoleranta Datorsystem 1990 (FTDS'90). 19-20 Nov 1990 in Gothenburg, Sweden.

Poul E. Heegaard: “Transient dependability properties of distributed systems”. Master thesis from Norwegian Institute of Technology, Department of Computer Systems and Telematics. March 1989, In Norwegian.