Background and activities
- Professor, Department of Telematics.
Academic degrees:
- 1975: Siv.ing. (MSc in Technology)
- 1982: Dr. Techn.
Work experience:
- 1975: Scientific assistant, NTH;
- 1981: Doctor research fellowship (NTNF);
- 1976 - 1997: Scientist, Head of Section, Senior Scientist, and Principal Research Scientist at ELAB, DELAB, SINTEF Telecom and Informatics;
- 1988 - 1997: Adjunct professor at Department of Computer Engineering and Telematics (IDT), NTH;
- 1997 - .......: Professor, Department of Telematics, NTNU;
- 2003 - 2012: Principal investigator, Norwegian Centre of Excellence Q2S - the Centre for Quantifiable Quality of Service in Communication Systems;
- 2009 - 2017: Vice Dean of Research, IME-NTNU;
Appointments:
- The board of "Norwegian SmarGrid Centre"
- NorNet steering board
- SINTEF's council
Fields of interest
- Dependability modelling, analysis and simulation, analysis of operational data.
- Communication network dependability; design & management for resilience and survivability,
- Fault-tolerant systems,
- Combined security and dependability evaluation, probabilistic approaches in security,
- Architecture of ICT systems (Emphasis on dependability issues)
- QoS in communication network and services.
Professional activities:
Editor:
- Computer communications, Special Issue on Reliable Network-based Services (RNS)
TPC chair:
- Networking 2014,
- 9th International Workshop on Rare Event Simulation,
- DRCN11 International Conference on the Design of Reliable Communication Networks,
- EURO NGI 2007 (Euro-NGI Conference on Next Generation Internet Networks.)
Scientific, academic and artistic work
Displaying a selection of activities. See all publications in the database
2016
- (2016) Maximizing the reliability of dual homed, critical services in wireless/cellular networks. Optical Switching and Networkning Journal. vol. 19.
- (2016) Managed Dependability in Interacting Systems. Principles of Performance and Reliability Modeling and Evaluation Essays in Honor of Kishor Trivedi on his 70th Birthday.
2015
- (2015) GEARSHIFT: Guaranteeing availability requirements in SLAs using hybrid fault tolerance. 2015 IEEE Conference on Computer Communications (INFOCOM).
- (2015) Service availability in the NFV Virtualized Evolved Packet Core. 2015 IEEE Global Communications Conference (GLOBECOM).
- (2015) Achieving Dependability in Software-Defined Networking - A Perspective. 7th International Workshop on Reliable Networks Design and Modeling (RNDM 2015).
- (2015) Survivability as a Generalization of Recovery. Proceedings of the 2015 11th International Conference on The Design of Reliable Communication Networks (DRCN).
- (2015) Keynote: Dependability of Non-engineered and Unmanaged System of Systems. 7th International Workshop on Reliable Networks Design and Modeling [RNDM 2015] . IFIP TC6, IEEE Com. Soc. and more; Münich. 2015-10-05 - 2015-10-05.
2014
- (2014) Assessing the service quality of an Internet path through end-to-end measurement. Computer Networks. vol. 70.
- (2014) Using genetic algorithms to improve the reliability of dual homed wireless critical services. 6th International Workshop on Reliable Networks Design and Modeling [RNDM'14] ; Barcelona. 2014-11-17 - 2014-11-19.
- (2014) Using genetic algorithms to improve the reliability of dual homed wireless critical services. Proceedings of RNDM 2014 6th International Workshop on Reliable Networks Design and Modeling.
- (2014) Robust Telecommunication Services - As vital as water and electricity?. Telenor Research Breakfast Meeting . Telenor Research; Fornebu, Broadcasted to the Telenor Group word-wide. 2014-06-20 - 2014-06-20.
- (2014) The Positive Impact of Failures on Energy Efficient Virtual Machines Consolidation. ICC 2014 - Proceedings of 2014 IEEE International Conference on Communications.
- (2014) Analysis of the effect of InfoRanking on content pollution in peer-to-peer systems. Security and Communication Networks. vol. 7 (4).
2013
- (2013) Reliable Network-Based Services. Computer Communications. vol. 36 (6).
- (2013) Optimizing service continuity in a multi operator multi technology wireless environment. Design of Reliable Communication Networks (DRCN), 2013 9th International Conference on the.
- (2013) Optimizing service continuity in a multi operator multi technology wireless environment. Design of Reliable Communication Networks (DRCN), 2013 9th International Conference ; Budapest. 2013-03-04 - 2013-03-07.
- (2013) Reliability modelling of access point selection and handovers in heterogeneous wireless environments. Design of Reliable Communication Networks (DRCN), 2013 9th International Conference on the.
- (2013) Reliability modelling of access point selection and handovers in heterogeneous wireless environments. Design of Reliable Communication Networks (DRCN), 2013 9th International Conference ; Budapest. 2013-03-04 - 2013-03-07.
- (2013) Hybrid cloud management to comply efficiently with SLA availability guarantees. 12th Annual IEEE International Symposium on Network Computing and Applications, NCA 2013.
- (2013) SLA success probability assessment in networks with correlated failures. Computer Communications. vol. 36 (6).
- (2013) An Analysis of Interdomain Availability and Causes of Failures Based on Active Measurements. Telecommunications Systems. vol. 52 (2).
2012
- (2012) Towards risk-aware communications networking. Reliability Engineering & System Safety. vol. 109.
- (2012) Finnes det garanti mot nedetid i dag og i fremtiden?. Digitale telenett - Teleforum på Kursdagene . Tekna; Trondheim. 2012-01-05 - 2012-01-06.
- (2012) A Study of the Interval Availability and its Impact on SLAs Risk. Advances in Computer Science, Engineering & Applications.
- (2012) Characterization of Router and Link Failure Processes in UNINETT’s IP Backbone Network. International Journal of Space-Based and Situated Computing (IJSSC). vol. 2 (1).
- (2012) Guaranteeing SLA Availability in Telecommunications Networks. International Telecommunications Network Strategy and Planning Symposium.
- (2012) System Management to Comply with SLA Availability Guarantees in Cloud Computing. IEEE International Conference on Cloud Computing Technology and Science (IEEE CloudCom 2012).
- (2012) Ant-based systems for wireless networks : retrospect and prospects. Self-organizing systems : 6th International Workshop IWSOS 2012.
- (2012) Modeling Push-Based Live P2P Streaming by Stochastic Activity Networks. Journal of Digital Information Management. vol. 10 (4).
- (2012) Modeling Push-Based Live P2P Streaming by Stochastic Activity Networks. 4th International Conference on Networked Digital Technologies ; 2012-04-24 - 2012-04-26.
- (2012) Modeling Push-Based Live P2P Streaming by Stochastic Activity Networks. Communications in Computer and Information Science. vol. 294.
- (2012) Towards green P2P: Analysis of energy consumption in P2P and approaches to control. Proceedings of the 2012 International Conference on High Performance Computing and Simulation.
- (2012) Towards green P2P: Analysis of energy consumption in P2P and approaches to control. the 2012 International Conference on High Performance Computing and Simulation, HPCS 2012 ; 2012-07-02 - 2012-07-06.
2011
- (2011) Proceedings of the 2011 8th International Workshop on the Design of Reliable Communication Networks. IEEE Press. 2011. ISBN 978-1-61284-125-0.
- (2011) Dependability in mobile access networks. Workshop on Traffic Engineering and Dependability in the Network of the Future . NTNU/Q2S; Trondheim. 2011-06-21 - 2011-06-22.
- (2011) Failures and changes in cellular access networks; A study of field data. Proceedings of the 2011 8th International Workshop on the Design of Reliable Communication Networks.
- (2011) Failures and changes in cellular access networks; A study of field data. Design of Reliable Netwokrs, 8th International Workshop ; Krakow. 2011-10-10 - 2011-10-12.
- (2011) Analysis of Failures Characteristics in the UNINETT IP Backbone Network. IEEE Workshops of International Conference on Advanced Information Networking and Applications (WAINA), 2011.
- (2011) Analysis of Failures Characteristics in the UNINETT IP Backbone Network. IEEE Workshops of International Conference on Advanced Information Networking and Applications (WAINA), 2011 ; 2011-03-22 - 2011-03-25.
- (2011) Guaranteeing Service Availability in SLAs on Networks with Non Independent Failures. Proceedings of the 2011 8th International Workshop on the Design of Reliable Communication Networks.
- (2011) Stochastic Optimization for Allocate Connections under SLAs Guarantees. Workshop on Traffic Engineering and Dependability in the Network of the Future . NTNU; Trondheum. 2011-06-20 - 2011-06-21.
- (2011) An Impact of Addressing Schemes on Routing Scalability. Journal of Communications and Networks. vol. 13 (6).
- (2011) Ant-Based Multipath Routing for Wireless Mesh Networks. Lecture Notes in Computer Science. vol. 6625.
- (2011) Resilient Inter-Carrier Traffic Engineering for Internet Peering Interconnections. IEEE Transactions on Network and Service Management. vol. 8 (4).
- (2011) Modeling and analysis of P2P content distribution under coordinated attack strategies. IEEE Consumer Communications and Networking Conference [CCNC 2011]; . IEEE Communication Society; Las Vegas, NV. 2011-01-08 - 2011-01-11.
- (2011) Modeling and analysis of P2P content distribution under coordinated attack strategies. Proceedings of Eighth Annual IEEE Consumer Communications and Networking Conference.
2010
- (2010) Determining dependencies in multi technology inter domain wireless access; A case study. Globecom - Workshop on Mobile Computing and Emerging Communication Networks. . Globecom; Miami. 2010-12-10 - 2010-12-10.
- (2010) Determining dependencies in multi technology inter domain wireless access; A case study. GLOBECOM Workshops (GC Wkshps), 2010 IEEE.
- (2010) Analysis of Dependencies Between Failures in the UNINETT IP Backbone Network. IEEE Pacific Rim International Symposium on Dependable Computing, PRDC 2010 ; 2010-12-13 - 2010-12-15.
- (2010) Dynamic Sharing Mechanism for Guaranteed Availability in MPLS Based Networks. International Workshop Technical Committee on Communications Quality and Reliability, CQR 2010.
- (2010) Dynamic Sharing Mechanism for Guaranteed Availability in MPLS Based Networks. IEEE International Workshop Technical Committee on Communications Quality and Reliability, CQR 2010 ; 2010-06-08 - 2010-06-10.
- (2010) Analysis of Dependencies Between Failures in the UNINETT IP Backbone Network. IEEE Pacific Rim International Symposium on Dependable Computing, PRDC 2010.
- (2010) Guaranteeing Service Availability in SLAs; a Study of the Risk Associated with Contract Period and Failure Process. IEEE Latin America Transactions. vol. 8 (4).
- (2010) The Stability of Compact Routing in Dynamic Inter-Domain Networks. 2010 Third International Conference on Communication Theory, Reliability, and Quality of Service.
- (2010) Measurement and Analysis of End-to-end Dependability Characteristics in the Global Network. 18th International Workshop on Quality of Service (IWQoS), 2010 ; Beijing. 2010-06-16 - 2010-06-18.
- (2010) Measurement and Analysis of End-to-end Dependability Characteristics in the Global Network. Euro-NF Workshop on Traffic Engineering and Dependability in the Network of the Future . Euro-NF; Warsaw. 2010-04-15 - 2010-04-16.
- (2010) Analyzing Causes of Failures in the Global Research Network Using Active Measurements. Proceedings of the Second International Workshop on Reliable Networks Design and Modeling (RNDM 2010).
- (2010) Measurement and Analysis of End-to-end Dependability Characteristics in the Global Network. 18th International Workshop on Quality of Service (IWQoS), 2010.
- (2010) Ensuring Fast Adaptation in an Ant-Based Path Management System. Lecture Notes of the Institute for Computer Sciences, Social Informatics and Telecommunications Engineering. vol. 39.
- (2010) Opportunistic Ant-Based Path Management for Wireless Mesh Networks. Lecture Notes in Computer Science. vol. 6234.
- (2010) A Resilient Routing Policy for Peering Management. GLOBECOM 2010 ; 2010-12-06 - 2010-12-10.
- (2010) Modeling QoS in P2P File-sharing with Benign and Malicious Peers by Stochastic Activity Networks. 7th IEEE Consumer Communications and Networking Conference ; Las Vegas. 2010-01-09 - 2010-01-12.
- (2010) Modeling QoS in P2P File-sharing with Benign and Malicious Peers by Stochastic Activity Networks. 2010 7th IEEE Consumer Communications and Networking Conference.
- (2010) Towards Green P2P: Understanding the Energy Consumption in P2P under Content Pollution. Proceedings of 2010 IEEE/ACM International Conference on Green Computing and Communications (GreenCom 2010).
- (2010) Towards Green P2P: Understanding the Energy Consumption in P2P under Content Pollution. 2010 IEEE/ACM International Conference on Green Computing and Communications (GreenCom 2010); EaCN-2010/GreenCom ; 2010-12-18 - 2010-12-20.
2009
- (2009) Continuity-based resilient communication. Proceedings of the 2009 7th International Workshop on the Design of Reliable Communication Networks.
- (2009) Managing availability in wireless inter domain access. Ultra Modern Telecommunications & Workshops, 2009. ICUMT '09. International Conference on ; 2009-10-13 - 2009-10-14.
- (2009) Managing availability in wireless inter domain access. Proceedings of the International Conference on Ultra Modern Telecommunications.
- (2009) Guaranteeing Service Availability in SLAs; A Study of the Risk Associated with Contract Period and Failure Process. 2009 IEEE LATIN-AMERICAN CONFERENCE ON COMMUNICATIONS.
- (2009) Exploiting Alternative Paths in MHWNs: A Source-Based QoS Routing Approach. Proceedings of the INFOCOM Workshops 2009, IEEE.
- (2009) Differentiated dependability in one network?. NTVA Technology Forum 2009 . NTVA - Norges Tekniske Vitenskapsakademi; Trondheim. 2009-09-09 - 2009-09-09.
- (2009) A compact routing scheme with lower stretch. Proc International Conference on New Technologies, Mobility and Security.
- (2009) A Stochastic Clustering Algorithm for Swarm Compact Routing. Proc. of 2009 Next Generation Internet Networks.
- (2009) Comparison of the Beta and the Hidden Markov Models of Trust in Dynamic Environments. Third IFIP WG 11.11 International Conference, IFIPTM 2009 ; West Lafayette, IN. 2009-06-15 - 2009-06-19.
- (2009) Comparison of the Beta and the Hidden Markov Models of Trust in Dynamic Environments. Trust Management III.
- (2009) Comparison of the Beta and the Hidden Markov Models of Trust in Dynamic Environments. IFIP Advances in Information and Communication Technology.
- (2009) Analysis of Evolution Scenarios for End-to-end Quality of Services Provisioning in the Internet. Proceedings of the International Conference on Ultra Modern Telecommunications.
- (2009) Adaptive management of connections to meet availability guarantees in SLAs. IM 2009 Mini-conference . IEEE/IFIP; Hofstra University, Long Island, New York. 2009-06-01 - 2009-06-05.
- (2009) Adaptive management of connections to meet availability guarantees in SLAs. Proceedings of the 2009 IFIP/IEEE International Symposium on Integrated Network Management.
- (2009) Ensuring Fast Adaptation in an Ant-Based Path Management System. Proceedings CD of the 4th International ICST Conference on Bio-Inspired Models of Network, Information, and Computing Systems.
- (2009) Revisiting the Auto-Regressive Functions of the Cross-Entropy Ant System. Lecture Notes in Computer Science.
- (2009) Modeling Reputation Scheme in P2P File-sharing by Stochastic Activity Networks. The 8th IEEE International Conference on Dependable, Autonomic and Secure Computing ; Chengdu. 2009-12-12 - 2009-12-14.
- (2009) Modeling reputation scheme in P2P file-sharing by stochastic activity networks. The 8th IEEE International Conference on Dependable, Autonomic and Secure Computing : Chengdu, China, 12-14 December 2009.
2008
- (2008) Building Multiobjective Resilient Networks. Proceedings of UKSim - Tenth International Conference, University of Cambridge, UK.
- (2008) The Cross Entropy Ant System for Network Path Management. Telektronikk. vol. 104 (1).
- (2008) Jgroup/ARM: a distributed object group platform with autonomous replication management. Software, Practice & Experience. vol. 38 (9).
- (2008) TSR: trust-based secure MANET routing using HMMs. Proceedings of the 4th ACM symposium on QoS and security for wireless and mobile networks.
- (2008) Application of the RESTART/Splitting technique to network resilience studies in NS2. Proceedings of the 19th IASTED International Conference on Modelling & Simulation.
- (2008) Comparison of Schemes for Provision of Differentiated Availability-guaranteed Services Using Dedicated Protection. Seventh International Conference on Networking (ICN) . IARIA; Cancun. 2008-04-13 - 2008-04-18.
- (2008) On Provision of Availability Guarantees Using Shared Protection. 12th Conference on Optical Network Design and Modelling (ONDM) . IFIP; Vilanova la Geltru. 2008-03-12 - 2008-03-14.
- (2008) Simulation of Wireless Multi-* Networks in NS-2. Proceedings of the 3rd International Conference on Performance Evaluation Methodologies and Tools (ValueTools 2008).
- (2008) Jgroup/ARM: a distributed object group platform with autonomous replication management. Software, Practice & Experience. vol. 38.
2007
- (2007) A Survey of Resilience Differentiation Frameworks in Communication Networks. IEEE Communications Surveys and Tutorials. vol. 9 (4).
- (2007) Dependability and performance with discrete event simulation. Tapir Akademisk Forlag. 2007.
- (2007) 3rd EuroNGI Conference on Next Generation Internet Networks, Design and Engineering for Heterogeneity. IEEE conference proceedings. 2007. ISBN 1-4244-0856-3.
- (2007) Multiobjective Evolutionary Algorithms for Sceduling Jobs on Computational Grids. International Conference, Applied Computing 2007 ; 2007-02-18 - 2007-02-20.
- (2007) Integrated Dependability and Security Evaluation Using Game Theory and Markov Models. Information Assurance : Dependability and Security in Networked Systems.
- (2007) On provision of guaranteed availability using dedicated protection. EuroFGI Workshop on Traffic Engineering, Protection and Restoration for FGI . EuroFGI / Telenor; Fornebu/Oslo. 2007-09-27 - 2007-10-27.
- (2007) Provision of connection-specific availability guarantees in communication networks. 6th International Workshop on Design of Reliable Communication Networks (DRCN 2007) ; La Rochelle. 2007-10-07 - 2007-10-10.
- (2007) A Framework for Predicting Security and Dependability Measures in Real-time. International Journal of Computer Science and Network Security. vol. 7 (3).
2006
- (2006) Conformance Deterioration in QoS Networks: Phenomenon, Analysis and Elimination. Computer Networks. vol. 50 (12).
- (2006) Dependability Modelling and Analysis of Networks as Taking Routing and Traffic into Account. Proceedings of EuroNGI 2nd Conference on Next Generation Internet Design and Engineering on CD-ROM.
- (2006) A Hybrid Modelling Approach for Analyzing Service Availability with Shared Path Protection in IP Networks. 10th International Conference on Communication Technology ; Guilin. 2006-11-27 - 2006-11-30.
- (2006) Refined Classification of Service Unavailability for Comparison: Shared Path Protection vs. Rerouting. 10th International Conference on Communication Technology ; Guilin. 2006-11-27 - 2006-11-30.
- (2006) Swarm-based routing to achieve dependable networks. Dependability of all-IP networks; A multi-disciplinary workshop . VTT; Espoo (Helsinki). 2006-05-18 - 2006-05-19.
- (2006) Conformance deterioration in QoS networks: Phenomenon, analysis and elimination. Computer Networks. vol. 50 (12).
- (2006) Application of the RESTART/Splitting Technique in Object-Oriented Simulation. 6th International Workshop on Rare Event Simulation . University of Bamberg; Bamberg. 2006-10-08 - 2006-10-10.
- (2006) Prospects for dependability differentiation in interdomain networks. EuroNGI Workshop on Traffic Engineering, Protection and Restoration for NGI . EuroNGI/AGH University of Science and Technology; Krakow. 2006-05-04 - 2006-05-05.
- (2006) A Module-Based Wireless Node for ns-2. Proceedings of the Workshop on ns-2: the IP network simulator.
- (2006) A Game-theoretic Approach to Stochastic Security and Dependability Evaluation. The 2nd IEEE International Symposium on Dependable, Autonomic and Secure Computing (DASC'06) ; Indiana. 2006-09-29 - 2006-10-01.
- (2006) On Stochastic Modeling for Integrated Security and Dependability Evaluation. Journal of Networks. vol. 1 (5).
- (2006) Towards a Stochastic Model for Integrated Security and Dependability Evaluation. Proceedings of the First International Conference on Availability, Reliability and Security.
- (2006) Optical packets or electrical packets? An assessment of the viability of optical packet/burst switching. Northern Optics 2006 . Norsk Fysisk Selskap; Radisson SAS Hotel Norge, Bergen. 2006-06-14 - 2006-06-16.