2023

• Austad, Henrik; Jellum, Erling Rennemo; Hendseth, Sverre; Mathisen, Geir; Bryne, Torleiv Håland; Gregertsen, Kristoffer Nyborg. (2023) Composable distributed real-time systems with deterministic network channels. Journal of systems architecture
  Vitenskapelig artikkel

2022

• Gebraselase, Befekadu; Helvik, Bjarne Emil; Jiang, Yuming. (2022) Bitcoin P2P Network Measurements: A Testbed Study of the Effect of Peer Selection on Transaction Propagation and Confirmation Times. IEEE Transactions on Network and Service Management
  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

2021

• Tola, Besmir; Jiang, Yuming; Helvik, Bjarne Emil. (2021) Model-Driven Availability Assessment of the NFV-MANO with Software Rejuvenation. IEEE Transactions on Network and Service Management
  Vitenskapelig artikkel
• Gebraselase, Befekadu Gezaheng; Helvik, Bjarne Emil; Jiang, Yuming. (2021) Transaction Characteristics of Bitcoin. IEEE (Institute of Electrical and Electronics Engineers)
  Vitenskapelig Kapittel/Artikkel/Konferanseartikkel
• Gebraselase, Befekadu Gezaheng; Helvik, Bjarne Emil; Jiang, Yuming. (2021) An Analysis of Transaction Handling in Bitcoin. IEEE (Institute of Electrical and Electronics Engineers)
  Vitenskapelig Kapittel/Artikkel/Konferanseartikkel
• Gebraselase, Befekadu Gezaheng; Helvik, Bjarne Emil; Jiang, Yuming. (2021) Effect of Miner Incentive on the Confirmation Time of Bitcoin Transactions. IEEE conference proceedings
  Vitenskapelig Kapittel/Artikkel/Konferanseartikkel
• Garau, Michele; Helvik, Bjarne Emil. (2021) Power Unavailability Reduction in Distribution Grid Fault Management with Entropy Minimization. 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

2020

• Tola, Besmir; Jiang, Yuming; Helvik, Bjarne Emil. (2020) On the Resilience of the NFV-MANO: An Availability Model of a Cloud-native Architecture. IEEE conference proceedings
  Vitenskapelig Kapittel/Artikkel/Konferanseartikkel
• Helvik, Bjarne Emil; Vizarreta, Petra; Heegaard, Poul Einar; Trivedi, Kishor; Mas Machuca, Carmen. (2020) Modelling of Software Failures. Springer
  Faglig kapittel
• Kamisinski, Andrzej; Musumeci, Francesco; Hmaity, Ali; Tornatore, Massimo; Casazza, Marco; Farshad, Arsham. (2020) Resilient NFV Technology and Solutions. Springer
  Faglig kapittel
• Rak, Jacek; Heegaard, Poul Einar; Helvik, Bjarne Emil. (2020) Resilience of communication networks to random failures and disasters: An optimization perspective. Networks
  Vitenskapelig artikkel
• Zerihun, Tesfaye Amare; Garau, Michele; Helvik, Bjarne Emil. (2020) Effect of Communication Failures on State Estimation of 5G-Enabled Smart Grid. IEEE Access
  Vitenskapelig artikkel
• Gonzalez, Andres J.; Ordonez-Lucena, Jose; Helvik, Bjarne Emil; Nencioni, Gianfranco; Xie, Min; Lopez, Diego R.. (2020) The Isolation Concept in the 5G Network Slicing. IEEE Press
  Vitenskapelig Kapittel/Artikkel/Konferanseartikkel

2019

• 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
• Amare, Tesfaye; Adrah, Charles Mawutor; Helvik, Bjarne Emil. (2019) A Method for Performability Study on Wide Area Communication Architectures for Smart Grid. IEEE (Institute of Electrical and Electronics Engineers)
  Vitenskapelig Kapittel/Artikkel/Konferanseartikkel
• Tola, Besmir; Nencioni, Gianfranco; Helvik, Bjarne Emil; Jiang, Yuming. (2019) Modeling and Evaluating NFV-Enabled Network Services under Different Availability Modes. IEEE (Institute of Electrical and Electronics Engineers)
  Vitenskapelig Kapittel/Artikkel/Konferanseartikkel
• Zerihun, Tesfaye Amare; Helvik, Bjarne Emil. (2019) Dependability of Smart Distribution Grid Protection Using 5G. IEEE (Institute of Electrical and Electronics Engineers)
  Vitenskapelig Kapittel/Artikkel/Konferanseartikkel
• Gebraselase, Befekadu Gezaheng; Helvik, Bjarne Emil; Jiang, Yuming. (2019) Suitability of Blockchains to Enable and Support Networking Functions: State of Art. Association for Computing Machinery (ACM)
  Vitenskapelig Kapittel/Artikkel/Konferanseartikkel
• Tola, Besmir; Nencioni, Gianfranco; Helvik, Bjarne Emil. (2019) Network-Aware Availability Modeling of an End-to-End NFV-Enabled Service. IEEE Transactions on Network and Service Management
  Vitenskapelig artikkel
• Zerihun, Tesfaye Amare; Garau, Michele; Helvik, Bjarne Emil. (2019) Dependability Modeling and Analysis of 5G Based Monitoring System in Distribution Grids. Association for Computing Machinery (ACM)
  Vitenskapelig Kapittel/Artikkel/Konferanseartikkel

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 International Workshop on Reliable Networks Design and Modeling (RNDM) (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
• Zerihun, Tesfaye Amare; Helvik, Bjarne Emil. (2018) Dependability Analysis of Smart Distribution Grid Architectures Considering Various Failure Modes. 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
• 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
• Nencioni, Gianfranco; Garroppo, Rosario G.; Gonzalez, Andres J.; Helvik, Bjarne Emil; Procissi, Gregorio. (2018) Orchestration and Control in Software-Defined 5G Networks: Research Challenges. Wireless Communications & Mobile Computing
  Vitenskapelig oversiktsartikkel/review
• Oostenbrink, Jorik; Kuipers, Fernando; Heegaard, Poul Einar; Helvik, Bjarne Emil. (2018) Evaluating Local Disaster Recovery Strategies. Performance Evaluation Review
  Vitenskapelig artikkel

2017

• 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
• Kamisiński, Andrzej; Helvik, Bjarne Emil; Gonzalez, Andres Javier; Nencioni, Gianfranco. (2017) Assessing the risk of violating SLA dependability requirements in software-defined networks. IEEE (Institute of Electrical and Electronics Engineers)
  Vitenskapelig Kapittel/Artikkel/Konferanseartikkel
• Tola, Besmir; Jiang, Yuming; Helvik, Bjarne Emil. (2017) Failure Process Characteristics of Cloud-Enabled Services. 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
• 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

• 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
• Følstad, Eirik Larsen; Helvik, Bjarne Emil. (2016) The cost for meeting SLA dependability requirements; implications for customers and providers. Reliability Engineering & System Safety
  Vitenskapelig artikkel
• Gonzalez, Andres Javier; Nencioni, Gianfranco; Helvik, Bjarne Emil; Kamisinski, Andrzej. (2016) A Fault-Tolerant and Consistent SDN Controller. IEEE Press
  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
• Heegaard, Poul Einar; Helvik, Bjarne Emil; Nencioni, Gianfranco; Wäfler, Jonas. (2016) Managed Dependability in Interacting Systems. Springer
  Vitenskapelig Kapittel/Artikkel/Konferanseartikkel
• Følstad, Eirik Larsen; Helvik, Bjarne Emil. (2016) Maximizing the reliability of dual homed, critical services in wireless/cellular networks. Optical Switching and Networkning Journal
  Vitenskapelig artikkel

2015

• 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 J.; Helvik, Bjarne Emil; Tiwari, Prakriti; Becker, Denis; Wittner, Otto J.. (2015) GEARSHIFT: Guaranteeing availability requirements in SLAs using hybrid fault tolerance. IEEE Press
  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
• 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

2014

• Gonzalez, Andres Javier; Helvik, Bjarne Emil. (2014) The Positive Impact of Failures on Energy Efficient Virtual Machines Consolidation. IEEE conference proceedings
  Vitenskapelig Kapittel/Artikkel/Konferanseartikkel
• Følstad, Eirik Larsen; Helvik, Bjarne Emil. (2014) Using genetic algorithms to improve the reliability of dual homed wireless critical services. IEEE Sarnoff Symposium
  Vitenskapelig Kapittel/Artikkel/Konferanseartikkel
• Abdelkefi, Atef; Jiang, Yuming; Helvik, Bjarne Emil; Biczok, Gergely; Calu, Alexander. (2014) Assessing the service quality of an Internet path through end-to-end measurement. Computer Networks
  Vitenskapelig artikkel
• Zhang, Peiqing; Fotiou, Nikos; Helvik, Bjarne Emil; Marias, Giannis F.; Polyzos, George C.. (2014) Analysis of the effect of InfoRanking on content pollution in peer-to-peer systems. Security and Communication Networks
  Vitenskapelig artikkel

2013

• Myakotnykh, Eugene; Wittner, Otto; Helvik, Bjarne Emil; Abdelkefi, Atef; Helland, Jon Kåre; Kvittem, Olav Arne. (2013) An Analysis of Interdomain Availability and Causes of Failures Based on Active Measurements. Telecommunications Systems
  Vitenskapelig artikkel
• Følstad, Eirik Larsen; Helvik, Bjarne Emil. (2013) Reliability modelling of access point selection and handovers in heterogeneous wireless environments. IEEE Press
  Vitenskapelig Kapittel/Artikkel/Konferanseartikkel
• Følstad, Eirik Larsen; Helvik, Bjarne Emil. (2013) Optimizing service continuity in a multi operator multi technology wireless environment. IEEE Press
  Vitenskapelig Kapittel/Artikkel/Konferanseartikkel
• Gonzalez, Andres Javier; Helvik, Bjarne Emil. (2013) SLA success probability assessment in networks with correlated failures. Computer Communications
  Vitenskapelig artikkel
• Gonzalez, Andres Javier; Helvik, Bjarne Emil. (2013) Hybrid cloud management to comply efficiently with SLA availability guarantees. IEEE conference proceedings
  Vitenskapelig Kapittel/Artikkel/Konferanseartikkel
• Cholda, Piotr; Helvik, Bjarne Emil. (2013) Reliable Network-Based Services. Computer Communications
  Leder

2012

• Paquereau, Laurent; Helvik, Bjarne Emil. (2012) Ant-based systems for wireless networks : retrospect and prospects. Springer
  Vitenskapelig Kapittel/Artikkel/Konferanseartikkel
• Zhang, Peiqing; Helvik, Bjarne Emil. (2012) Modeling Push-Based Live P2P Streaming by Stochastic Activity Networks. Communications in Computer and Information Science (CCIS)
  Vitenskapelig artikkel
• Zhang, Peiqing; Helvik, Bjarne Emil. (2012) Modeling Push-Based Live P2P Streaming by Stochastic Activity Networks. Journal of Digital Information Management
  Vitenskapelig artikkel
• Zhang, Peiqing; Helvik, Bjarne Emil. (2012) Towards green P2P: Analysis of energy consumption in P2P and approaches to control. IEEE (Institute of Electrical and Electronics Engineers)
  Vitenskapelig Kapittel/Artikkel/Konferanseartikkel
• Gonzalez, Andres Javier; Helvik, Bjarne Emil. (2012) Characterization of Router and Link Failure Processes in UNINETT’s IP Backbone Network. International Journal of Space-Based and Situated Computing (IJSSC)
  Vitenskapelig artikkel
• Gonzalez, Andres Javier; Helvik, Bjarne Emil. (2012) A Study of the Interval Availability and its Impact on SLAs Risk. Springer
  Vitenskapelig Kapittel/Artikkel/Konferanseartikkel
• Gonzalez, Andres Javier; Helvik, Bjarne Emil. (2012) Guaranteeing SLA Availability in Telecommunications Networks. IEEE Press
  Vitenskapelig Kapittel/Artikkel/Konferanseartikkel
• Gonzalez, Andres Javier; Helvik, Bjarne Emil. (2012) System Management to Comply with SLA Availability Guarantees in Cloud Computing. IEEE (Institute of Electrical and Electronics Engineers)
  Vitenskapelig Kapittel/Artikkel/Konferanseartikkel
• Cholda, Piotr; Følstad, Eirik Larsen; Helvik, Bjarne Emil; Kuusela, Pirkko; Naldi, Maurizio; Norros, Ilkka. (2012) Towards risk-aware communications networking. Reliability Engineering & System Safety
  Vitenskapelig oversiktsartikkel/review

2011

• Secci, Stefano; Ma, Huaiyuan; Helvik, Bjarne Emil; Rougier, Jean-Louis. (2011) Resilient Inter-Carrier Traffic Engineering for Internet Peering Interconnections. IEEE Transactions on Network and Service Management
  Vitenskapelig artikkel
• Ma, Huaiyuan; Helvik, Bjarne Emil; Wittner, Otto. (2011) An Impact of Addressing Schemes on Routing Scalability. Journal of Communications and Networks
  Vitenskapelig artikkel
• Følstad, Eirik Larsen; Helvik, Bjarne Emil. (2011) Failures and changes in cellular access networks; A study of field data. IEEE Press
  Vitenskapelig Kapittel/Artikkel/Konferanseartikkel
• Cholda, Piotr; Helvik, Bjarne Emil. (2011) Proceedings of the 2011 8th International Workshop on the Design of Reliable Communication Networks. IEEE Press IEEE Press
  Vitenskapelig antologi/Konferanseserie
• Gonzalez, Andres Javier; Helvik, Bjarne Emil. (2011) Analysis of Failures Characteristics in the UNINETT IP Backbone Network. IEEE (Institute of Electrical and Electronics Engineers)
  Vitenskapelig Kapittel/Artikkel/Konferanseartikkel
• Gonzalez, Andres Javier; Helvik, Bjarne Emil. (2011) Guaranteeing Service Availability in SLAs on Networks with Non Independent Failures. IEEE Press
  Vitenskapelig Kapittel/Artikkel/Konferanseartikkel
• Zhang, Peiqing; Helvik, Bjarne Emil. (2011) Modeling and analysis of P2P content distribution under coordinated attack strategies. IEEE conference proceedings
  Vitenskapelig Kapittel/Artikkel/Konferanseartikkel
• Paquereau, Laurent; Helvik, Bjarne Emil. (2011) Ant-Based Multipath Routing for Wireless Mesh Networks. Lecture Notes in Computer Science (LNCS)
  Vitenskapelig artikkel

2010

• Gonzalez, Andres Javier; Helvik, Bjarne Emil; Hellan, Jon K.; Kuusela, Pirkko. (2010) Analysis of Dependencies Between Failures in the UNINETT IP Backbone Network. IEEE (Institute of Electrical and Electronics Engineers)
  Vitenskapelig Kapittel/Artikkel/Konferanseartikkel
• Gonzalez, Andres Javier; Helvik, Bjarne Emil. (2010) Dynamic Sharing Mechanism for Guaranteed Availability in MPLS Based Networks. IEEE (Institute of Electrical and Electronics Engineers)
  Vitenskapelig Kapittel/Artikkel/Konferanseartikkel
• Gonzalez, Martinez Andres; Helvik, Bjarne Emil. (2010) Guaranteeing Service Availability in SLAs; a Study of the Risk Associated with Contract Period and Failure Process. IEEE Latin America Transactions
  Vitenskapelig artikkel
• Zhang, Peiqing; Helvik, Bjarne Emil. (2010) Towards Green P2P: Understanding the Energy Consumption in P2P under Content Pollution. IEEE (Institute of Electrical and Electronics Engineers)
  Vitenskapelig Kapittel/Artikkel/Konferanseartikkel
• Ma, Huaiyuan; Helvik, Bjarne Emil; Wittner, Otto. (2010) The Stability of Compact Routing in Dynamic Inter-Domain Networks. IEEE Press
  Vitenskapelig Kapittel/Artikkel/Konferanseartikkel
• Følstad, Eirik Larsen; Helvik, Bjarne Emil. (2010) Determining dependencies in multi technology inter domain wireless access; A case study. IEEE conference proceedings
  Vitenskapelig Kapittel/Artikkel/Konferanseartikkel
• Myakotnykh, Evgeniy; Helvik, Bjarne Emil; Wittner, Otto; Kvittem, Olav; Helland, Jon Kåre; Skjesol, Trond. (2010) Measurement and Analysis of End-to-end Dependability Characteristics in the Global Network. IEEE Press
  Vitenskapelig Kapittel/Artikkel/Konferanseartikkel
• Myakotnykh, Evgeniy; Helvik, Bjarne Emil; Hellan, Jon Kåre; Kvittem, Olav Arne; Skjesol, Trond; Wittner, Otto. (2010) Analyzing Causes of Failures in the Global Research Network Using Active Measurements. IEEE Sarnoff Symposium
  Vitenskapelig Kapittel/Artikkel/Konferanseartikkel
• Zhang, Peiqing; Helvik, Bjarne Emil. (2010) Modeling QoS in P2P File-sharing with Benign and Malicious Peers by Stochastic Activity Networks. IEEE conference proceedings
  Vitenskapelig Kapittel/Artikkel/Konferanseartikkel
• Paquereau, Laurent; Helvik, Bjarne Emil. (2010) Opportunistic Ant-Based Path Management for Wireless Mesh Networks. Lecture Notes in Computer Science (LNCS)
  Vitenskapelig artikkel
• Paquereau, Laurent; Helvik, Bjarne Emil. (2010) Ensuring Fast Adaptation in an Ant-Based Path Management System. Lecture Notes of the Institute for Computer Sciences, Social Informatics and Telecommunications Engineering
  Vitenskapelig artikkel

2009

• Paquereau, Laurent; Helvik, Bjarne Emil. (2009) Revisiting the Auto-Regressive Functions of the Cross-Entropy Ant System. Lecture Notes in Computer Science (LNCS)
  Vitenskapelig artikkel
• Ma, Huaiyuan; Wittner, Otto; Helvik, Bjarne Emil. (2009) A Stochastic Clustering Algorithm for Swarm Compact Routing. IEEE conference proceedings
  Vitenskapelig Kapittel/Artikkel/Konferanseartikkel
• Følstad, Eirik Larsen; Helvik, Bjarne Emil. (2009) Managing availability in wireless inter domain access. IEEE Sarnoff Symposium
  Vitenskapelig Kapittel/Artikkel/Konferanseartikkel
• Ma, Huaiyuan; Helvik, Bjarne Emil; Wittner, Otto. (2009) A compact routing scheme with lower stretch. IEEE conference proceedings
  Vitenskapelig Kapittel/Artikkel/Konferanseartikkel
• Cholda, Piotr; Mykkeltveit, Anders; Helvik, Bjarne Emil; Jajszczyk, Andrzej. (2009) Continuity-based resilient communication. IEEE Press
  Vitenskapelig Kapittel/Artikkel/Konferanseartikkel
• Zhang, Peiqing; Helvik, Bjarne Emil. (2009) Modeling reputation scheme in P2P file-sharing by stochastic activity networks. IEEE (Institute of Electrical and Electronics Engineers)
  Vitenskapelig Kapittel/Artikkel/Konferanseartikkel
• Myakotnykh, Eugene; Helvik, Bjarne Emil. (2009) Analysis of Evolution Scenarios for End-to-end Quality of Services Provisioning in the Internet. IEEE Sarnoff Symposium
  Vitenskapelig Kapittel/Artikkel/Konferanseartikkel
• Gonzalez, Martinez Andres; Helvik, Bjarne Emil. (2009) Guaranteeing Service Availability in SLAs; A Study of the Risk Associated with Contract Period and Failure Process. IEEE Sarnoff Symposium
  Vitenskapelig Kapittel/Artikkel/Konferanseartikkel
• Paquereau, Laurent; Helvik, Bjarne Emil. (2009) Ensuring Fast Adaptation in an Ant-Based Path Management System. Springer
  Vitenskapelig Kapittel/Artikkel/Konferanseartikkel
• Hachana, Safaà; Montavont, Nicolas; Paquereau, Laurent; Helvik, Bjarne Emil. (2009) Exploiting Alternative Paths in MHWNs: A Source-Based QoS Routing Approach. IEEE Sarnoff Symposium
  Vitenskapelig Kapittel/Artikkel/Konferanseartikkel
• Moe, Marie Elisabeth Gaup; Helvik, Bjarne Emil; Knapskog, Svein Johan. (2009) Comparison of the Beta and the Hidden Markov Models of Trust in Dynamic Environments. Springer
  Vitenskapelig Kapittel/Artikkel/Konferanseartikkel
• Mykkeltveit, Anders; Helvik, Bjarne Emil. (2009) Adaptive management of connections to meet availability guarantees in SLAs. IEEE conference proceedings
  Vitenskapelig Kapittel/Artikkel/Konferanseartikkel
• Moe, Marie Elisabeth Gaup; Helvik, Bjarne Emil; Knapskog, Svein Johan. (2009) Comparison of the Beta and the Hidden Markov Models of Trust in Dynamic Environments. IFIP Advances in Information and Communication Technology
  Vitenskapelig artikkel

2008

• Meling, H; Montresor, A; Helvik, Bjarne Emil; Babaoglu, O. (2008) Jgroup/ARM: a distributed object group platform with autonomous replication management. Software, Practice & Experience
  Vitenskapelig artikkel
• Mykkeltveit, Anders; Helvik, Bjarne Emil. (2008) Dependability differentiation in communication networks. Norges teknisk-naturvitenskapelige universitet Doktoravhandlinger ved NTNU (312)
  Doktorgradsavhandling
• Meling, Hein; Montresor, Alberto; Helvik, Bjarne E.; Babaoglu, Ozalp. (2008) Jgroup/ARM: a distributed object group platform with autonomous replication management. Software, Practice & Experience
  Vitenskapelig artikkel
• Paquereau, Laurent; Helvik, Bjarne Emil. (2008) Simulation of Wireless Multi-* Networks in NS-2. ACM Publications
  Vitenskapelig Kapittel/Artikkel/Konferanseartikkel
• Grosan, Crina; Abraham, Ajith; Helvik, Bjarne Emil. (2008) Building Multiobjective Resilient Networks. IEEE (Institute of Electrical and Electronics Engineers)
  Vitenskapelig Kapittel/Artikkel/Konferanseartikkel
• Moe, Marie Elisabeth Gaup; Helvik, Bjarne Emil; Knapskog, Svein Johan. (2008) TSR: trust-based secure MANET routing using HMMs. Association for Computing Machinery (ACM)
  Vitenskapelig Kapittel/Artikkel/Konferanseartikkel
• Mykkeltveit, Anders; Helvik, Bjarne Emil. (2008) Application of the RESTART/Splitting technique to network resilience studies in NS2. ACTA Press
  Vitenskapelig Kapittel/Artikkel/Konferanseartikkel
• Heegaard, Poul Einar; Helvik, Bjarne Emil; Wittner, Otto Jonassen. (2008) The Cross Entropy Ant System for Network Path Management. Telektronikk
  Vitenskapelig artikkel

2007

• Sallhammar, Karin; Helvik, Bjarne Emil; Knapskog, Svein Johan. (2007) A Framework for Predicting Security and Dependability Measures in Real-time. International Journal of Computer Science and Network Security
  Vitenskapelig artikkel
• Emstad, Peder Johannes; Helvik, Bjarne Emil; Kure, Øivind. (2007) 3rd EuroNGI Conference on Next Generation Internet Networks, Design and Engineering for Heterogeneity. IEEE conference proceedings IEEE conference proceedings
  Vitenskapelig antologi/Konferanseserie
• 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
• Helvik, Bjarne Emil; Sallhammar, Karin; Knapskog, Svein Johan. (2007) Integrated Dependability and Security Evaluation Using Game Theory and Markov Models. Elsevier
  Vitenskapelig Kapittel/Artikkel/Konferanseartikkel
• Cholda, Piotr; Mykkeltveit, Anders; Helvik, Bjarne Emil; Wittner, Otto Jonassen; Jajszczyk, Andrzej. (2007) A Survey of Resilience Differentiation Frameworks in Communication Networks. IEEE Communications Surveys and Tutorials
  Vitenskapelig artikkel

2006

• Sallhammar, Karin; Helvik, Bjarne Emil; Knapskog, Svein Johan. (2006) On Stochastic Modeling for Integrated Security and Dependability Evaluation. Journal of Networks
  Vitenskapelig artikkel
• Li, Frank; Stol, Norvald; Helvik, Bjarne Emil. (2006) Conformance deterioration in QoS networks: Phenomenon, analysis and elimination. Computer Networks
  Vitenskapelig artikkel
• Li, Frank Y.; Stol, Norvald; Helvik, Bjarne E.. (2006) Conformance Deterioration in QoS Networks: Phenomenon, Analysis and Elimination. Computer Networks
  Vitenskapelig artikkel
• Sallhammar, Karin; Helvik, Bjarne Emil; Knapskog, Svein Johan. (2006) Towards a Stochastic Model for Integrated Security and Dependability Evaluation. IEEE (Institute of Electrical and Electronics Engineers)
  Annet
• Gan, Qitao; Helvik, Bjarne Emil. (2006) Dependability Modelling and Analysis of Networks as Taking Routing and Traffic into Account. IEEE Press
  Vitenskapelig Kapittel/Artikkel/Konferanseartikkel
• Paquereau, Laurent; Helvik, Bjarne Emil. (2006) A Module-Based Wireless Node for ns-2. ACM Publications
  Vitenskapelig Kapittel/Artikkel/Konferanseartikkel

2005

• 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
• Zouganeli, Evi; Andreassen, Ragnar Ø; Feng, Boning; Solem, Astrid; Stol, Norvald; Kjønsberg, Heidi. (2005) Why bother with optical packets? An evaluation of the viability of optical packet/burst switching. Telektronikk
  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
• Sallhammar, Karin; Knapskog, Svein Johan; Helvik, Bjarne Emil. (2005) Building a Stochastic Model for Security and Trust Assessment Evaluation. ERCIM News
  Vitenskapelig artikkel
• Zouganeli, Evi; Andreassen, Ragnar; Feng, Boning; Solem, Astrid; Stol, Norvald; Kjønsberg, Heidi. (2005) Why bother with optical packets? An evaluation of the viability of optical packet/burst switching. Telektronikk
  Vitenskapelig artikkel
• Helvik, Bjarne E.; Meling, Hein; Montresor, Alberto. (2005) An approach to experimentally obtain service dependability characteristics of the Jgroup/ARM system. Lecture Notes in Computer Science (LNCS)
  Vitenskapelig artikkel
• Andreassen, Ragnar; Helvik, Bjarne Emil; Sudbø, Aasmund; Zouganeli, Evi. (2005) A study of fault tolerant architectures for electronic in- and egress interconnections in optical burst/packet switched networks. IEEE Press
  Vitenskapelig Kapittel/Artikkel/Konferanseartikkel
• Andreassen, Ragnar; Sudbø, Aasmund; Bjørnstad, Steinar; Helvik, Bjarne Emil; Hodne, Erik; Wikshaaland, Sigbjørn. (2005) Fault tolerance in a TWC/AWG based optical burst switching node architecture. IEEE Press
  Vitenskapelig Kapittel/Artikkel/Konferanseartikkel
• Wittner, Otto; Helvik, Bjarne Emil; Nicola, Victor Fouad. (2005) Internet Failure Protection using Hamiltonian p-Cycles found by Ant-like Agents. IEEE Press
  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
• Sallhammar, Karin; Knapskog, Svein Johan; Helvik, Bjarne Emil. (2005) Using Stochastic Game Theory to Compute the Expected Behavior of Attackers. IEEE (Institute of Electrical and Electronics Engineers)
  Vitenskapelig Kapittel/Artikkel/Konferanseartikkel
• Sallhammar, Karin; Helvik, Bjarne Emil; Knapskog, Svein Johan. (2005) Incorporating Attacker Behavior in Stochastic Models of Security. CSREA Press
  Vitenskapelig Kapittel/Artikkel/Konferanseartikkel
• Bjørnstad, Steinar; Sudbø, Aasmund; Andreassen, Ragnar; Zouganelli, Evi; Stol, Norvald; Helvik, Bjarne Emil. (2005) Node redundancy in optical burst and packet switched networks.
  Vitenskapelig Kapittel/Artikkel/Konferanseartikkel
• Helvik, Bjarne Emil; Meling, Hein (ITEM - NTNU); Montresor, Alberto. (2005) An approach to experimentally obtain service dependability characteristics of the Jgroup/ARM system. Lecture Notes in Computer Science (LNCS)
  Vitenskapelig artikkel
• Zouganeli, Evi; Solheim, Astrid; Kjølnesberg, Heidi; Andreassen, Ragnar; Feng, Boning; Stol, Norvald. (2005) Techno-Economic Evaluation of Optical Packet/Burst Switching. IEE Conferance publication
  Vitenskapelig artikkel

2004

• Wittner, Otto; Helvik, Bjarne Emil. (2004) Distributed Soft Policy Enforcement by Swarm Intelligence; Application to Loadsharing and Protection. Annales des télécommunications
  Vitenskapelig artikkel
• Helvik, Bjarne Emil. (2004) Perspectives on the Dependability of Networks and Services. Telektronikk
  Vitenskapelig artikkel
• Helvik, Bjarne E.; Meling, Hein; Montresor, Alberto. (2004) An Approach to Experimentally Obtain Service Dependability Characteristics of the Jgroup/ARM System. Universitetet i Stavanger Universitetet i Stavanger (144/2004)
  Rapport