Publications (1992 - 1998)

1998

Ola Espvik, Terje Jensen, Bjarne E Helvik “EURESCOM project P806-GI; A Common Framework for QoS/Network Performance in a Multi-Provider Environment”, Telektronikk, Vol. 94, No. 2, pp. 84-87, 1998
Arne Folkestad and Peder J. Emstad The Heavy Traffic Case of an Approximation Method for the Output Processes from Leaky Buckets. The 14th Nordic Teletraffic Seminar (NTS-14), Lyngby, Denmark, 18-20 August 1998.
Bjørn Gulla, Tor Arne Iversen, Stein Erik Myklebust and Per-Oddvar Osland Improving IN Usability with GIN, in Proceedings of the 5th International Conference on Intelligence in Networks, Bordeaux, France, May 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 A Scheme for Adaptive Biasing in Importance sampling. AEÜ International Journal of Electronics and Communication. Vol. 52(3), pp 113-212, May 1998. Special issue on Rare Event Simulation.
Nils Holte, Einar J. Aas, Bjarne E. Helvik, Olav Egeland, Ragnar Hergum “Utdanningsbehov for siv.ing. og cand.scient. innen IKT; Telekommunikasjon, elektronikk og teknisk kybernetikk”, Norges Forskningsråd (28 s), Mars 1998.
Audun Jøsang, Svein J. Knapskog A metric for trusted systems, Global IT security pp. 541-549, IFIP TC11 14th International Conference on Information Security, 31/8-2/9 Wien/Budapest, 1998.
Audun Jøsang, Svein J. Knapskog A Metric for Trusted Systems (full paper), Proceedings of the 21st National Security Conference, 21st National Security Conference, Crystal City, Virginia, USA, 1998.
Audun Jøsang A Subjective Metric of Authentication, In the Proceedings of ESORICS'98. Louvain-la-Neuve, Belgium, Springer, 1998.
Audun Jøsang Reliability Analysis with Uncertain Probabilities“, In the Proceedings of the 4th International Conference on Probabilistic Safety Assessment and Management (PSAM4), Springer, 1998.
Audun Jøsang A hard problem: Disclosing how to break public-key cryptosystems, In the Proceedings of NORDSEC'98. Trondheim, Norway, NTNU, 1998.
Svein J. Knapskog, Knut Johannesen A knockout switch with uniform fairness, 6th International Conference on Telecommunication Systems - Modeling and Analysis, Nashville, USA, 1998-03-08
Arne Myskja T. Engset in New Light. The 14th Nordic Teletraffic Seminar (NTS-14), Lyngby, Denmark, August 18-20, 1998.
Arne Myskja Translation Norwegian - English of Unpublished Report, Kristiania (Oslo) 1915: T. Engset: On the Calculation of Switches in an Automatic Telephone System. Telektronikk, vol. 94, no. 2, pp. 99-142, 1998.
Arne Myskja The Engset Report of 1915. Summary and Comments. Telektronikk, vol. 94, no. 2, pp. 143-153, 1998.
Arne Myskja The Man Behind the Formula. Biographical Notes on Tore Olaus Engset. Telektronikk, vol. 94, no. 2, pp. 154-164, 1998.
Per-Oddvar Osland and Peder J. Emstad Characterisation and Parameter Estimation of a non-Homogeneous Arrival Process, in Proceedings of the 14th Nordic Teletraffic Seminar, Copenhagen, Denmark, August 1998

1997

F.A. Aagesen QoS Frameworks for Open Distributed Processing Systems, Telektronikk, ISSN 0085-7130, No.1, pages 26-41, 1997.
Bræk, Shakeri Specifications and descriptions in mechatronic product development - with an introduction to SDL. International workshop on mechatronics design and modelling, Ankara, Turkey, September 1997.
P. Csurgay, A. Oesleboe, F.A. Aagesen Teleservices and Internet Application Technology, IFIP TC6 International Symposium on Network Information Processing Systems, Sofia, Bulgaria, 14-16 October 1997.
Peder J. Emstad and Per-Oddvar Osland Mobility of IN Users - Study of a Scheduling Strategy for Load Distribution, in Proceedings of the 5th International Conference on Telecommunication Systems, Modeling and Analysis, Nashville, USA, March 1997
A. Folkestad and C. Roche “Deadlock Probability in Unrestricted Wormhole Routing Networks”. In Proceedings of the IEEE International Conference on Communications (ICC'97), Montreal, Canada, June 1997.
Arne Folkestad and Per-Oddvar Osland Load Control in the Intelligent Network, in Proceedings of the Norwegian Informatics Conference (NIK'97), Voss, Norway, November 1997
Poul E. Heegaard A survey of Speedup simulation techniques. Workshop on Rare Event Simulation. Aachen, Germany, 28-29 Aug, 1997.
Poul E. Heegaard A Scheme for Adaptive Biasing in Importance sampling. Workshop on Rare Event Simulation. Aachen, Germany, 28-29 Aug, 1997.
Poul E. Heegaard Efficient simulation of network performance by importance sampling. In Proc. of the 15th International Teletraffic congress - ITC 15. Washington D.C., USA, 23-27 June, 1997.
A. Jøsang A Model for Trust in Security Systems. Proceedings of the Second Second Nordic Workshop on Secure Computer Systems. Karila, Arto and Aalto, Timo. Helsinki University of Technology. November, 1997
A. Jøsang Artificial Reasoning with Subjective Logic. Proceedings of the Second Australian Workshop on Commonsense Reasoning. Abhaya Nayak.1997
A. Jøsang A Trust Policy Framework. Proceedings of the 1997 International Conference on Information and Communication Security. Yongfei Han. Springer-Verlag. 1997
A. Jøsang Prospectives for Modelling trust in Information Security. Proceedings of the 1997 Australasian Conference on Information Security and Privacy. Varadharajan, Vijay. Springer-Verlag. 1997
Audun Jøsang, Filip van Laenen, Svein J. Knapskog, Joos Vandewalle How to trust systems, Information security in research and business, 13th International Conference on Information Security, København, 1997
Svein J. Knapskog Hvordan beskytte dine data og datanettverk, Gjensidige - konferansen ´97, 1997
S.K. Palat and S. Andresen Comparison of Replication of the User Mobility Profile With Caching for Reduction of HLR Accesses, 1997 IEEE International Conference on Personal Wireless Communications (ICPWC'97), Mumbai (Bombay), India, December 17-19, 1997.
Shakeri, Bræk Development of Mechatronic Systems, ICEE'97, Teheran, Iran, June 1997.
Shakeri, Bræk Modelling the Behaviour of Mechatronic Systems. International Conference on Engineering Design (ICED), Tampere, Finland, August 1997.
Shakeri Tracability and functional localisation in mechatronic systems, Intelligent Industrial Automation (IIA'97), Nimes, 16-19 September 1997.
Shakeri A reference model for mechatronic systems, Intelligent Industrial Automation (IIA'97) Nimes, 16-19 September 1997.

1996

Ragnar Andreassen “Correlation properties of MPEG VBR video sources: Relative importance of short and medium term correlation on ATM multiplexer performance”, In Proc. IFIP/IEEE Broadband Communications '96, Chapman Hall, pp. 40-52.
Ragnar Andreassen, Poul E. Heegaard and Bjarne E. Helvik “Importance sampling for speed-up simulation of heterogenous MPEG sources”, In Proc. 13th Nordic Teletraffic Seminar, pp. 190-202, Trondheim, Norway, 1996.
Ragnar Andreassen “Coding parameters and traffic characteristics of MPEG-2 VBR video sources”, In Proc. 13th Nordic Teletraffic Seminar, pp. 162-175, Trondheim, Norway, 1996.
Steinar Andresen and J. Smith “A Road Transport Service Architecture”, INDC '96, Trondheim, Norway, 1996.
Steinar Andresen On optical switching - a proposal for an all optical ATM switch, Telektronikk 2.96.
Rolv Bræk, Øystein Haugen, Birger Møller-Pedersen A simple and practical Solution to the Inheritance of Behaviour of Statechart-like Specified Classes. Norwegian Informatics Conference 1996 (NIK'96), Alta, Norway, 18-20 Nov. 1996.
R. Bræk «SDL basics», Computer Networks and ISDN Systems, vol. 28, no. 12, 1996.
P.J. Emstad and A. Folkestad “Simultaneous Resource Possession in Distributed Systems”. In Proceedings of the 4th International Conference on Telecommunication Systems, Nashville, TN, USA, March 1996.
A. Folkestad and P.J. Emstad “A Token Based SDP Load Control Scheme”. In Proceedings of the ITC Specialists Seminar on Control in Communications, Lund, Sweden, September 1996.
A. Folkestad and C. Roche “Deadlock Probability in Unrestricted Wormhole Routing Networks”. The Thirteenth Nordic Teletraffic Seminar (NTS-13), Trondheim, Norway, August 1996.
Arne Folkestad, Per-Oddvar Osland and Peder J. Emstad On Load Control for Service Data Points, in Proceedings of the 4th International Conference on Intelligence in Networks, Bordeaux, France, November 1996
Poul E. Heegaard Adaptive Optimisation of Importance Sampling for Multi-Dimensional State Space Models with Irregular Resource Boundaries, In Proc. of The 13th Nordic Teletraffic Seminar (NTS-13), pages 176-189, Trondheim, Norway, 20-22 August 1996.
A. Jøsang and K. Johannessen «Authentication in analogue telephone access networks», Proc. of Pragocrypt '96, Praha, 1996.
A. Jøsang «The right type of trust for distributed systems», Proc. of the NSPW '96, Lake Arrowhead, California, 1996.
Arne Myskja and Boning Feng A Note on the Effect of Correlation on Measurement of Traffic. The 13th Nordic Teletraffic Seminar (NTS-13), Trondheim, Norway, August 20-22, 1996.
S. K. Palat and S. Andresen “User Profiles and their Replication for Reduction of HLR Access and Signalling Load”, ICUPC 96, Cambridge, MA, USA, 1996.

1995

F.A. Aagesen Architectures for the Modelling of QoS Functionality, Telektronikk, 1995.
F.A. Aagesen and J.K. Hellan On Constructive Models for QoS Functionality, International Teletraffic Seminar 95, Bankok, November 1995.
Ragnar Andreassen, Peder J. Emstad and Tore J. Riksaasen >Cell losses of multiplexed VBR MPEG sources in an ATM-multiplexer. The twelfth Nordic Teletraffic Seminar, VTT Symposium 154, Technical Research Centre of Finland. Helsinki, Finland, 1995.
Tore J. Berg and Peder J. Emstad Performance of Packet Switched Services in Spread-Spectrum Radio Networks. Telektronikk, vol. 91, no. 4, 1995. Special Issue on Mobile Telecommunication.
R. Bræk, A.Sarma, editors SDL´95 With MSC in CASE. Proceedings of the seventh SDL Forum, Oslo, Norway, 26-29 September 1995, Elsevier Science 1995. ISBN 0 444 822690.
Peter Csurgay and F.A. Aagesen A Distributed SDL-based Intelligent Network Laboratory, Seventh SDL Forum, Elsevier Science Publisher ISBN; 0 444 82269 0, pp. 15-24, Oslo, Norway, September 1995.
P.J. Emstad and A. Folkestad. “Models for Resource Usage in Intelligent Networks”. In Proceedings of the International Teletraffic Seminar, Bangkok, Thailand, 28 Nov. - 1 Dec. 1995.
P.J. Emstad and A. Folkestad “On Traffic Modelling for IN”. In Proceedings of the 12th Nordic Teletraffic Seminar (NTS-12), Espoo, Finland, 22-24 August 1995.
Boning Feng and Arne Myskja Analysis of External Traffic at UNIT/SINTEF's MD110 Telephone Exchange. Telektronikk, vol. 91, no. 2/3, pp. 119-129, October 1995.
A. Folkestad, S. Kleier and C. Görg “Impact of UPT Services on Network Performance and Call Set-Up Times: Distribution of UPT Service Logic in SS7”. In Proceedings of the 15th International Switching Symposium (ISS '95), Berlin, Germany, 23-28 April 1995.
T. Frotveit, R. Bræk and S. Andresen Modeling Advanced Transport Telematics Architectures using formal definition techniques. IEEE, VNIS 95, Seattle, USA, 1995.
Poul E. Heegaard Rare event provoking simulation techniques. In proceeding of the International Teletraffic Seminar (ITS), Bangkok, Thailand, 28 Nov. - 1 Dec. 1995.
Poul E. Heegaard Speed-up techniques for high-performance evaluation. Telektronikk, vol. 91, no. 2/3, pp. 195-207, 1995. Special Issue on Teletraffic.
Poul E. Heegaard Comparison of speed-up techniques for simulation.. In proceeding of the 12th Nordic Teletraffic Seminar (NTS-12), Espoo, Finland, 22-24 August 1995.
J.K. Hellan, F.A. Aagesen and J. Audestad On the Applicability of an ODP-compatible Framework to the Specification fo GSM, IEEE TINA, Melbourne, February 1995.
Bjarne E. Helvik and Lars Hofseth Self-similar traffic and multilevel source models, In proceeding of the 12th Nordic Teletraffic Seminar (NTS-12), Espoo, Finland, 22-24 August 1995. VTT Symposium Series.
Bjarne E. Helvik and Norvald Stol ATM traffic experiments; a laboratory study of service interaction, loss fairness and loss characteristics. In proceeding of the 12th Nordic Teletraffic Seminar (NTS-12), Espoo, Finland, 22-24 August 1995. VTT Symposium Series.
Bjarne E. Helvik Synthetic Load Generation for ATM Traffic Measurements. Telektronikk, vol. 91, no. 2/3, pp. 174 - 194, October 1995.
Audun Jøsang Security Protocol Verification using SPIN. Proceedings of the First SPIN Workshop. J-Ch. Gregoire. INRS-Telecommunication, Montreal, Canada. October, 1995
Audun Jøsang The difficulty of standardizing smart card security evaluation. Computer Standards and Interfaces Journal, volume 17, number 4, pages 333-341. Elsevier Science. September, 1995
S. J. Knapskog Security in Computer Networks. 2nd European School for Continuing and Vocational Education, Barcelona, Spain, 3-5 June 1995. Course material distributed to summer school participants.
Arne Myskja and Boning Feng On the Significance of Third Moment in the Arrival Distribution: The 12th Nordic Teletraffic Seminar (NTS-12), Espoo, Finland, August 22-24, 1995.
Arne Myskja Guest Editorial. Telektronikk, vol. 91, no. 2/3, pp. 1-2, October 1995.
Arne Myskja An Introduction to Teletraffic. Telektronikk, vol. 91, no. 2/3, pp. 3-40, October 1995.
Arne Myskja A Tribute to A.K. Erlang. Telektronikk, vol. 91, no. 2/3, p. 41, October 1995.
Tore Riksaasen Telematikknett, Universitetsforlaget 1995.

1994

F.A. Aagesen On a Quality Service Operational Architecture, IFIP SEACOMM, Kualalumpur, October 1994, Chapmann and Hall Ltd.
R. Bræk, Ø. Haugen, G. Melby SISU metodikk gjør jobben (SISU Methodology does the Job), Elektronikk, no. 10, 1994.
Bjarne E. Helvik and Poul E. Heegaard A Technique for Measuring Rare Cell Losses in ATM Systems. STF40 A94083. Reprint from 14th International Teletraffic congress - ITC 14. Antibes Juan-les-Pins, France, 6-10 June, 1994.
Bjarne E. Helvik and Sven Arne Gylterud Identification of operational modes of distributed systems by cluster analysis. In Nordic Seminar on Dependable Computing Systems'1994 , Copenhagen, Denmark, August 1994 (STF40 A94108).
S. F. Mjølsnes, S. J. Knapskog Sikkerhetsevaluering av delt EDB-system for Bodø kommune. SINTEF DELAB Rapport STF40 F93156. Jan. 1994.
S. J. Knapskog Sikkerhetsevaluering av delt EDB-system for Trondheim kommune. SINTEF DELAB Rapport STF40 F94052. May 1994.
S. J. Knapskog Sikkerhetsevaluering av delt EDB-system for Frogn kommune. SINTEF DELAB Rapport STF40 F94078. May 1994.
S. J. Knapskog, Rolf Michelsen Sikkerhetsevaluering av delt EDB-system for Stord kommune . SINTEF DELAB Rapport Sept. 1994.
S. J. Knapskog IT Systems Security, 1st European School for Continuing and Vocational Education, Barcelona, Spain, 1994-07-27/29. Course material distributed to summer school participants.
Y. Li and S. Andresen “Multimedia Traffic Management Principles for Guranateed Wirless Network Performance”, ICUPC 94, San Diego, USA, 1994.
Y. Li and S. Andresen “An extended Packet Reservation Multiple Access Protocol for Wirless Multimedia Communications”, PIMRC and WCN, The Haugue, The Netherlands 1994.

1993

F.A. Aagesen A Flow Management Architecture for B-ISDN,IFIP International Conference on Intergrated Broadband Communication Networks and Services, Copenhagen, April 1993. Published by Elsevier Science Publisher B.V. (North Holland), 1994.
S. Andresen, B. G. Andersen and S.O. Sviden “An Intelligent Co-pilot - RTI as value added services to the GSM mobile telephone”, Ottawa, Canada, 1993.
R. Bræk, Ø. Haugen Engineering Real Time Systems - An Object Oriented Methodology using SDL, Hemel Hempstead: Prentice Hall, 1993.
R. Bræk, Ø. Haugen SDL Methodology Tutorial. Sixth SDL Forum. Darmstadt, October 1993.
Ø. Haugen, R. Bræk and G.Melby The SISU project. In O. Færgeman, A Sarma (ed); SDL ´93, Using Objects Proceedings of Sixth SDL Forum. Darmstadt, October 1993. Elsevier, 1993.
Poul E. Heegaard and Bjarne E. Helvik Establishing ATM source models for traffic measurements. In Karl Lindberger, editor, The 11th Nordic Teletraffic Seminar (NTS-11), Stockholm, Sweden, 24 - 26 August 1993. Telia Research. Also available as STF40 A93110.
Bjarne E. Helvik, Ole Melteig and Leif Morland The synthesized traffic generator; objectives, design and capabilities. In Integrated Broadband Communication Networks and Services (IBCN&S). IFIP, Elsevier, Copenhagen, Denmark, April 20-23 1993. (STF40 A993077)
S. J. Knapskog IT Systems Security - Standardisation and Evaluation. Systech Security Seminar, Rome, Italy, 1993-06-21/23. Course material distributed to seminar participants.
Y. Li and S. Andresen “Design Issues Of Multipoint Multimedia Conference For Mobile Communications Network.” Multimedia 93, First Int'l Conf. on Multimedia, Anaheim, California, 2-6 August 1993.
Y.Li and S. Andresen “Design issues of Multipoint Multimedia Conference for Mobile Communications Network”, The 4. Int. Symp. on Personal, Indoor and Mobile Radio Communications, 9-11 Sept. 1993.
T. E. Wisløff and S. Andresen “Positioning and Traffic Information by Cellular Radio”, VNIS Conference '93, Ottawa, Canada, 1993.

1992

F.A. Aagesen A Cooperative Flow Management Scheme for ATM, Norsk Informatikk Konferanse, Tromsø, Norwaym, November, 1992.
Poul E. Heegaard and Bjarne E. Helvik Dependability simulation of systems modelled by local state diagrams; application of importance sampling. In Nordic Seminar on Dependable Computing Systems 1992 (NSDCS'92), August 19 - 21 1992. (Also available as STF40 A92113)
Poul E. Heegaard, Bjarne E. Helvik and Norvald Stol Efficient traffic algorithms for general complex resource handling problems. In The 10th Nordic Teletraffic Seminar (NTS-10), pages 105-116, Århus, Denmark, August 25 - 27 1992. Jydsk Telefon. Also available as STF40 A92115
Bjarne E. Helvik and Per R. Hokstad The colouring of ATM cell streams passing a FIFO buffer. In The 10th Nordic Teletraffic Seminar (NTS-10), pages 363-372, Århus, Denmark, August 25 - 27 1992. Jydsk Telefon. Also available as STF40 A 92133.
Terje Jensen and Arne Myskja Multilayer Cell Structures in Future Mobile Communication Networks. The 10th Nordic Teletraffic Seminar (NTS-10), Århus, Denmark, August 25-27, 1992.
S. J. Knapskog International Audit Benchmarks: Consequences of International Standardisation on National Projects ( for example: ORANGE BOOK) and European Projects (ITSEC). Presentation at SECURICOM ´92 in PARIS. Printed in Securicom´92 Conference Proceedings.
S. J. Knapskog International Standards: A Path to International Harmonization. Introduction to Panel Discussion, National Computer Security Conference, Baltimore, USA, 1992-10-13/16.
S.J.Knapskog, E.Swane, F.Lønnum, L. Bjerkan Fingerprint analysis - preproject. SINTEF.DELAB Report STF40 F92063. June 1992.
Arne Myskja and Terje Jensen Performance Study for Wireless Access Networks for UPT: Multilayer Cell Structures for Future Mobile Communication. 8th ITC Specialist Seminar on Universal Personal Telecommunication, Santa Margherita Ligure (Genova), Italy, October 12-14, 1992.