Bjarne E. Helvik

114 papers A* 1B 11C 5Misc 3Journal 35Unranked 57
YearRankTypeTitle / Venue / Authors
2022 J jnl
Bitcoin P2P Network Measurements: A Testbed Study of the Effect of Peer Selection on Transaction Propagation and Confirmation Times.
IEEE Trans. Netw. Serv. Manag.
Befekadu Gezaheng Gebraselase, Bjarne E. Helvik, Yuming Jiang
2022 J jnl
Bitcoin P2P Network Measurements: A testbed study of the effect of peer selection on transaction propagation and confirmation times.
CoRR
Befekadu Gezaheng Gebraselase, Bjarne E. Helvik, Yuming Jiang
2022 — conf
Blockchain Support For Time-Critical Self-Healing In Smart Distribution Grids.
ISGT-Europe
Befekadu Gezaheng Gebraselase, Charles M. Adrah, Tesfaye Amare, Bjarne E. Helvik, Poul E. Heegaard
2021 — conf
An Analysis of Transaction Handling in Bitcoin.
SMDS
Befekadu Gezaheng Gebraselase, Bjarne E. Helvik, Yuming Jiang
2021 J jnl
An Analysis of Transaction Handling in Bitcoin.
CoRR
Befekadu Gezaheng Gebraselase, Bjarne E. Helvik, Yuming Jiang
2021 — conf
Co-simulation and Discrete Event Simulation for Reliability Assessment of Power System and ICT: A Comparison.
ICSRS
Michele Garau, Romina Muka, Poul E. Heegaard, Bjarne E. Helvik
2021 — conf
Effect of Miner Incentive on the Confirmation Time of Bitcoin Transactions.
Blockchain
Befekadu Gezaheng Gebraselase, Bjarne E. Helvik, Yuming Jiang
2021 J jnl
Effect of Miner Incentive on the Confirmation Time of Bitcoin Transactions.
CoRR
Befekadu Gezaheng Gebraselase, Bjarne E. Helvik, Yuming Jiang
2021 J jnl
Model-Driven Availability Assessment of the NFV-MANO With Software Rejuvenation.
IEEE Trans. Netw. Serv. Manag.
Besmir Tola, Yuming Jiang, Bjarne E. Helvik
2021 — conf
Power Unavailability Reduction in Distribution Grid Fault Management with Entropy Minimization.
ICSRS
Michele Garau, Bjarne E. Helvik
2021 B conf
Transaction Characteristics of Bitcoin.
IM
Befekadu Gezaheng Gebraselase, Bjarne E. Helvik, Yuming Jiang
2020 J jnl
Effect of Communication Failures on State Estimation of 5G-Enabled Smart Grid.
IEEE Access
Tesfaye A. Zerihun, Michele Garau, Bjarne E. Helvik
2020 — ch.
Modelling of Software Failures.
Guide to Disaster-Resilient Communication Networks
Bjarne E. Helvik, Petra Vizarreta, Poul E. Heegaard, Kishor S. Trivedi, Carmen Mas Machuca
2020 — conf
On the Resilience of the NFV-MANO: An Availability Model of a Cloud-native Architecture.
DRCN
Besmir Tola, Yuming Jiang, Bjarne E. Helvik
2020 J jnl
Resilience of communication networks to random failures and disasters: An optimization perspective.
Networks
Jacek Rak, Poul E. Heegaard, Bjarne E. Helvik
2020 — ch.
Resilient NFV Technology and Solutions.
Guide to Disaster-Resilient Communication Networks
Andrzej Kamisinski, Francesco Musumeci, Ali Hmaity, Massimo Tornatore, Marco Casazza, Stefano Secci, Arsham Farshad, David Hutchison, Bjarne E. Helvik, Poul E. Heegaard
2020 — conf
The Isolation Concept in the 5G Network Slicing.
EuCNC
Andrés J. Gonzalez, Jose A. Ordonez-Lucena, Bjarne E. Helvik, Gianfranco Nencioni, Min Xie, Diego R. López, Pål Grønsund
2020 J jnl
Transaction Characteristics of Bitcoin.
CoRR
Befekadu Gezaheng Gebraselase, Bjarne E. Helvik, Yuming Jiang
2019 — conf
Dependability Modeling and Analysis of 5G Based Monitoring System in Distribution Grids.
VALUETOOLS
Tesfaye Amare, Michele Garau, Bjarne E. Helvik
2019 J jnl
Global Communications Newsletter.
IEEE Commun. Mag.
Carlos A. Gutiérrez, Carlos Eugenio Martinez-Cruz, Yi Qian, Iswadi Hasyim Rosma, Jacek Rak, Poul E. Heegaard, Bjarne E. Helvik
2019 — conf
Modeling and Evaluating NFV-Enabled Network Services under Different Availability Modes.
DRCN
Besmir Tola, Gianfranco Nencioni, Bjarne E. Helvik, Yuming Jiang
2019 J jnl
Network-Aware Availability Modeling of an End-to-End NFV-Enabled Service.
IEEE Trans. Netw. Serv. Manag.
Besmir Tola, Gianfranco Nencioni, Bjarne E. Helvik
2018 Misc conf
A modeling approach for dependability analysis of smart distribution grids.
ICIN
Tesfaye Amare, Bjarne E. Helvik, Poul E. Heegaard
2018 J jnl
Assessing the Maturity of SDN Controllers With Software Reliability Growth Models.
IEEE Trans. Netw. Serv. Manag.
Petra Vizarreta, Kishor S. Trivedi, Bjarne E. Helvik, Poul E. Heegaard, Andreas Blenk, Wolfgang Kellerer, Carmen Mas Machuca
2018 — conf
Dependability Analysis of Smart Distribution Grid Architectures Considering Various Failure Modes.
ISGT Europe
Tesfaye Amare, Bjarne E. Helvik
2018 J jnl
Dependability of the NFV Orchestrator: State of the Art and Research Challenges.
IEEE Commun. Surv. Tutorials
Andrés J. Gonzalez, Gianfranco Nencioni, Andrzej Kamisinski, Bjarne E. Helvik, Poul E. Heegaard
2018 J jnl
Evaluating Local Disaster Recovery Strategies.
SIGMETRICS Perform. Evaluation Rev.
Jorik Oostenbrink, Fernando A. Kuipers, Poul E. Heegaard, Bjarne E. Helvik
2018 J jnl
Orchestration and Control in Software-Defined 5G Networks: Research Challenges.
Wirel. Commun. Mob. Comput.
Gianfranco Nencioni, Rosario Giuseppe Garroppo, Andrés J. Gonzalez, Bjarne E. Helvik, Gregorio Procissi
2017 B conf
An empirical study of software reliability in SDN controllers.
CNSM
Petra Vizarreta, Kishor S. Trivedi, Bjarne E. Helvik, Poul E. Heegaard, Wolfgang Kellerer, Carmen Mas Machuca
2017 — conf
Assessing the risk of violating SLA dependability requirements in software-defined networks.
NFV-SDN
Andrzej Kamisinski, Bjarne E. Helvik, Andrés J. Gonzalez, Gianfranco Nencioni
2017 — conf
Failure process characteristics of cloud-enabled services.
RNDM
Besmir Tola, Yuming Jiang, Bjarne E. Helvik
2017 J jnl
Impact of SDN Controllers Deployment on Network Availability.
CoRR
Gianfranco Nencioni, Bjarne E. Helvik, Andrés J. Gonzalez, Poul E. Heegaard, Andrzej Kamisinski
2017 J jnl
Implementing the Availability Model of a Software-Defined Backbone Network in Möbius.
CoRR
Gianfranco Nencioni, Bjarne E. Helvik, Poul E. Heegaard
2017 J jnl
Including Failure Correlation in Availability Modeling of a Software-Defined Backbone Network.
IEEE Trans. Netw. Serv. Manag.
Gianfranco Nencioni, Bjarne E. Helvik, Poul E. Heegaard
2016 B conf
A Fault-Tolerant and Consistent SDN Controller.
GLOBECOM
Andrés J. Gonzalez, Gianfranco Nencioni, Bjarne E. Helvik, Andrzej Kamisinski
2016 — conf
Availability Modelling of Software-Defined Backbone Networks.
DSN Workshops
Gianfranco Nencioni, Bjarne E. Helvik, Andrés J. Gonzalez, Poul E. Heegaard, Andrzej Kamisinski
2016 J jnl
Maximizing the reliability of dual homed, critical services in wireless/cellular networks.
Opt. Switch. Netw.
Eirik Larsen Følstad, Bjarne E. Helvik
2016 J jnl
The cost for meeting SLA dependability requirements; implications for customers and providers.
Reliab. Eng. Syst. Saf.
Eirik Larsen Følstad, Bjarne E. Helvik
2015 — conf
Achieving dependability in software-defined networking - A perspective.
RNDM@WMNC
Poul E. Heegaard, Bjarne E. Helvik, Veena B. Mendiratta
2015 A* conf
GEARSHIFT: Guaranteeing availability requirements in SLAs using hybrid fault tolerance.
INFOCOM
Andrés J. Gonzalez, Bjarne E. Helvik, Prakriti Tiwari, Denis M. Becker, Otto J. Wittner
2015 J jnl
Open, Autonomous Digital Ecosystems - How to Create and Evolve Trustworthy Systems of Systems?.
ERCIM News
John Krogstie, Dirk Ahlers, Bjarne E. Helvik
2015 J jnl
Quantitative Modelling of Digital Ecosystems.
ERCIM News
Tesfaye A. Zerihun, Bjarne E. Helvik, Poul E. Heegaard, John Krogstie
2015 B conf
Service Availability in the NFV Virtualized Evolved Packet Core.
GLOBECOM
Andrés J. Gonzalez, Pål Grønsund, Kashif Mahmood, Bjarne E. Helvik, Poul E. Heegaard, Gianfranco Nencioni
2015 — conf
Survivability as a generalization of recovery.
DRCN
Poul E. Heegaard, Bjarne E. Helvik, Kishor S. Trivedi, Fumio Machida
2014 J jnl
Analysis of the effect of InfoRanking on content pollution in peer-to-peer systems.
Secur. Commun. Networks
Peiqing Zhang, Nikos Fotiou, Bjarne E. Helvik, Giannis F. Marias, George C. Polyzos
2014 — conf
The positive impact of failures on energy efficient virtual machines consolidation.
ICC
Andrés J. Gonzalez, Bjarne E. Helvik
2013 J jnl
An analysis of interdomain availability and causes of failures based on active measurements.
Telecommun. Syst.
Eugene S. Myakotnykh, Otto J. Wittner, Bjarne E. Helvik, Atef Abdelkefi, Jon Kåre Hellan, Olav Kvittem, Trond Skjesol, Arne Øslebø
2013 B conf
Hybrid Cloud Management to Comply Efficiently with SLA Availability Guarantees.
NCA
Andrés J. Gonzalez, Bjarne E. Helvik
2013 — conf
Optimizing service continuity in a multi operator multi technology wireless environment.
DRCN
Eirik Larsen Følstad, Bjarne E. Helvik
2013 — conf
Reliability modelling of access point selection and handovers in heterogeneous wireless environments.
DRCN
Eirik Larsen Følstad, Bjarne E. Helvik
2013 J jnl
Reliable network-based services.
Comput. Commun.
Piotr Cholda, Bjarne E. Helvik
2013 J jnl
SLA success probability assessment in networks with correlated failures.
Comput. Commun.
Andrés J. Gonzalez, Bjarne E. Helvik
2013 J jnl
Towards risk-aware communications networking.
Reliab. Eng. Syst. Saf.
Piotr Cholda, Eirik Larsen Følstad, Bjarne E. Helvik, Pirkko Kuusela, Maurizio Naldi, Ilkka Norros
2012 — conf
Ant-Based Systems for Wireless Networks: Retrospect and Prospects.
IWSOS
Laurent Paquereau, Bjarne E. Helvik
2012 J jnl
Characterisation of router and link failure processes in UNINETT's IP backbone network.
Int. J. Space Based Situated Comput.
Andrés J. Gonzalez, Bjarne E. Helvik
2012 — conf
Modeling Push-Based Live P2P Streaming by Stochastic Activity Networks.
NDT (2)
Peiqing Zhang, Bjarne E. Helvik
2012 J jnl
Modeling Push-based Live P2P Streaming by Stochastic Activity Networks.
J. Digit. Inf. Manag.
Peiqing Zhang, Bjarne E. Helvik
2012 C conf
System management to comply with SLA availability guarantees in cloud computing.
CloudCom
Andrés J. Gonzalez, Bjarne E. Helvik
2012 — conf
Towards green P2P: Analysis of energy consumption in P2P and approaches to control.
HPCS
Peiqing Zhang, Bjarne E. Helvik
2011 J jnl
An impact of addressing schemes on routing scalability.
J. Commun. Networks
Huaiyuan Ma, Bjarne E. Helvik, Otto J. Wittner
2011 — conf
Analysis of Failures Characteristics in the UNINETT IP Backbone Network.
AINA Workshops
Andrés J. Gonzalez, Bjarne E. Helvik
2011 — conf
Ant-Based Multipath Routing for Wireless Mesh Networks.
EvoApplications (2)
Laurent Paquereau, Bjarne E. Helvik
2011 — conf
Failures and changes in cellular access networks; A study of field data.
DRCN
Eirik Larsen Følstad, Bjarne E. Helvik
2011 — conf
Guaranteeing service availability in SLAs on networks with non independent failures.
DRCN
Andrés J. Gonzalez, Bjarne E. Helvik
2011 — conf
Modeling and analysis of P2P content distribution under coordinated attack strategies.
CCNC
Peiqing Zhang, Bjarne E. Helvik
2011 J jnl
Resilient Inter-Carrier Traffic Engineering for Internet Peering Interconnections.
IEEE Trans. Netw. Serv. Manag.
Stefano Secci, Huaiyuan Ma, Bjarne E. Helvik, Jean-Louis Rougier
2010 B conf
A Resilient Routing Policy for Peering Management.
GLOBECOM
Stefano Secci, Huaiyuan Ma, Bjarne E. Helvik, Jean-Louis Rougier
2010 C conf
Analysis of Dependencies between Failures in the UNINETT IP Backbone Network.
PRDC
Andrés J. Gonzalez, Bjarne E. Helvik, Jon Kåre Hellan, Pirkko Kuusela
2010 — conf
Analyzing causes of failures in the Global Research Network using active measurements.
ICUMT
Eugene S. Myakotnykh, Bjarne E. Helvik, Jon Kåre Hellan, Olav Kvittem, Trond Skjesol, Otto J. Wittner, Arne Øslebø
2010 B conf
Measurement and analysis of end-to-end dependability characteristics in the global network.
IWQoS
Eugene S. Myakotnykh, Bjarne E. Helvik, Otto J. Wittner, Olav Kvittem, Jon Kåre Hellan, Trond Skjesol, Arne Øslebø
2010 — conf
Modeling QoS in P2P File-Sharing with Benign and Malicious Peers by Stochastic Activity Networks.
CCNC
Peiqing Zhang, Bjarne E. Helvik
2010 — conf
Opportunistic Ant-Based Path Management for Wireless Mesh Networks.
ANTS Conference
Laurent Paquereau, Bjarne E. Helvik
2010 — conf
Towards Green P2P: Understanding the Energy Consumption in P2P under Content Pollution.
GreenCom/CPSCom
Peiqing Zhang, Bjarne E. Helvik
2009 — conf
A Compact Routing Scheme with Lower Stretch.
NTMS
Huaiyuan Ma, Bjarne E. Helvik, Otto J. Wittner
2009 — conf
A Stochastic Clustering Algorithm for Swarm Compact Routing.
NGI
Huaiyuan Ma, Otto J. Wittner, Bjarne E. Helvik
2009 — conf
Adaptive management of connections to meet availability guarantees in SLAs.
Integrated Network Management
Anders Mykkeltveit, Bjarne E. Helvik
2009 — conf
Analysis of evolution scenarios for end-to-end quality of services provisioning in the internet.
ICUMT
Eugene S. Myakotnykh, Bjarne E. Helvik
2009 — conf
Comparison of the Beta and the Hidden Markov Models of Trust in Dynamic Environments.
IFIPTM
Marie Elisabeth Gaup Moe, Bjarne E. Helvik, Svein J. Knapskog
2009 — conf
Continuity-based resilient communication.
DRCN
Piotr Cholda, Anders Mykkeltveit, Bjarne E. Helvik, Andrzej Jajszczyk
2009 — conf
Ensuring Fast Adaptation in an Ant-Based Path Management System.
BIONETICS
Laurent Paquereau, Bjarne E. Helvik
2009 — conf
Managing availability in wireless inter domain access.
ICUMT
Eirik Larsen Følstad, Bjarne E. Helvik
2009 C conf
Modeling Reputation Scheme in P2P File-Sharing by Stochastic Activity Networks.
DASC
Peiqing Zhang, Bjarne E. Helvik
2009 — conf
Revisiting the Auto-Regressive Functions of the Cross-Entropy Ant System.
IWSOS
Laurent Paquereau, Bjarne E. Helvik
2008 — conf
Building Multiobjective Resilient Networks.
UKSim
Crina Grosan, Ajith Abraham, Bjarne E. Helvik
2008 — conf
Comparison of Schemes for Provision of Differentiated Availability-Guaranteed Services Using Dedicated Protection.
ICN
Anders Mykkeltveit, Bjarne E. Helvik
2008 J jnl
Jgroup/ARM: a distributed object group platform with autonomous replication management.
Softw. Pract. Exp.
Hein Meling, Alberto Montresor, Bjarne E. Helvik, Özalp Babaoglu
2008 — conf
Simulation of wireless multi-* networks in NS-2.
VALUETOOLS
Laurent Paquereau, Bjarne E. Helvik
2008 — conf
TSR: trust-based secure MANET routing using HMMs.
Q2SWinet
Marie Elisabeth Gaup Moe, Bjarne E. Helvik, Svein J. Knapskog
2007 J jnl
A survey of resilience differentiation frameworks in communication networks.
IEEE Commun. Surv. Tutorials
Piotr Cholda, Anders Mykkeltveit, Bjarne E. Helvik, Otto J. Wittner, Andrzej Jajszczyk
2007 — conf
Provision of connection-specific availability guarantees in communication networks.
DRCN
Anders Mykkeltveit, Bjarne E. Helvik
2006 C conf
A Game-Theoretic Approach to Stochastic Security and Dependability Evaluation.
DASC
Karin Sallhammar, Bjarne E. Helvik, Svein J. Knapskog
2006 J jnl
Conformance deterioration in QoS networks: Phenomenon, analysis and elimination.
Comput. Networks
Frank Yong Li, Norvald Stol, Bjarne E. Helvik
2006 J jnl
On Stochastic Modeling for Integrated Security and Dependability Evaluation.
J. Networks
Karin Sallhammar, Bjarne E. Helvik, Svein J. Knapskog
2006 B conf
Towards a Stochastic Model for Integrated Security and Dependability Evaluation.
ARES
Karin Sallhammar, Bjarne E. Helvik, Svein J. Knapskog
2005 Misc conf
An Approach to Experimentally Obtain Service Dependability Characteristics of the Jgroup/ARM System.
EDCC
Bjarne E. Helvik, Hein Meling, Alberto Montresor
2005 Misc conf
Application of rare event techniques to trace driven simulation.
WSC
Poul E. Heegaard, Bjarne E. Helvik, Ragnar Ø. Andreassen
2005 — conf
Fault tolerance in a TWC/AWG based optical burst switching node architecture.
DRCN
Ragnar Ø. Andreassen, Aasmund Sudbö, Steinar Bjørnstad, Bjarne E. Helvik, Erik Hodne, Sigbjörn Wikshaland, Evi Zouganeli
2005 — conf
Incorporating Attacker Behavior in Stochastic Models of Security.
Security and Management
Karin Sallhammar, Bjarne E. Helvik, Svein J. Knapskog
2005 — conf
Internet failure protection using hamiltonian p-cycles found by ant-like agents.
DRCN
Otto J. Wittner, Bjarne E. Helvik, Victor Nicolat
2005 — conf
Self-Management of Virtual Paths in Dynamic Networks.
Self-star Properties in Complex Information Systems
Poul E. Heegaard, Otto J. Wittner, Bjarne E. Helvik
2005 — conf
Using Stochastic Game Theory to Compute the Expected Behavior of Attackers.
SAINT Workshops
Karin Sallhammar, Svein J. Knapskog, Bjarne E. Helvik
2004 — conf
A dynamic configuration architecture.
NOMS (1)
Finn Arve Aagesen, Chutiporn Anutariya, Mazen Malek Shiaa, Bjarne E. Helvik, Paramai Supadulchai
2004 J jnl
Distributed soft policy enforcement by swarm intelligence; application to loadsharing and protection.
Ann. des Télécommunications
Otto J. Wittner, Bjarne E. Helvik
2004 C conf
Performance consequences of inconsistent client-side membership information in the open group model.
IPCCC
Hein Meling, Bjarne E. Helvik
2003 B conf
Scalable distributed discovery of resource paths in telecommunication networks using cooperative ant-like agents.
IEEE Congress on Evolutionary Computation
Otto J. Wittner, Poul E. Heegaard, Bjarne E. Helvik
2002 B conf
Cross entropy guided ant-like agents finding dependable primary/backup path patterns in networks.
IEEE Congress on Evolutionary Computation
Otto J. Wittner, Bjarne E. Helvik
2002 — conf
Cross-Entropy Guided Ant-Like Agents Finding Cyclic Paths in Scarcely Meshed Networks.
Ant Algorithms
Otto J. Wittner, Bjarne E. Helvik
2002 — conf
Robust Implementation of policies using ant-like agents.
Net-Con
Otto J. Wittner, Bjarne E. Helvik
2001 — conf
Using the Cross-Entropy Method to Guide/Govern Mobile Agent's Path Finding in Networks.
MATA
Bjarne E. Helvik, Otto J. Wittner
2000 B conf
Failure semantics of mobile agent systems involved in network fault management.
NOMS
Otto J. Wittner, Bjarne E. Helvik, C. J. E. Holper
1999 — conf
Dependability Issues in Smart Networks.
SMARTNET
Bjarne E. Helvik
1999 — conf
Towards a Plug and Play Architecture for Telecommunications.
SMARTNET
Finn Arve Aagesen, Bjarne E. Helvik, Vilas Wuwongse, Hein Meling, Rolv Bræk, Ulrik Johansen
1993 — conf
The Synthesized Traffic Generator; Objectives, Design and Capabilities.
Integrated Broadband Communications
Bjarne E. Helvik, Ole Melteig, Leif Morland
1988 — conf
Modelling the influence of unreliable software in distributed computer systems.
FTCS
Bjarne E. Helvik