Search Results

Journal Papers

  1. J. Nousiainen, J. Virtamo and P. Lassila, Impact of Multidirectional Forwarding on the Capacity of Large Wireless Networks, IEEE Communications Letters, vol. 18, no. 2, pp. 372-375, 2014 (pdf)(bib)(abstract)
  2. J. Virtamo, E. Hyytiä and P. Lassila, Criticality Condition for Information Floating with Random Walk of Nodes, Performance Evaluation, vol. 70, no. 2, pp. 114-123, 2013 (link)(bib)(abstract)
  3. E. Hyytiä, J. Virtamo, P. Lassila and J. Ott, Continuum percolation threshold for permeable aligned cylinders and opportunistic networking, IEEE Communications Letters, vol. 16, no. 7, pp. 1064-1067, 2012 (link)(bib)
  4. E. Hyytiä, S. Aalto, A. Penttinen and J. Virtamo, On the value function of the M/G/1 FCFS and LCFS queues, Journal of Applied Probability, vol. 49, no. 4, pp. 1052-1071, 2012 (link)(bib)(abstract)
  5. T. Tirronen and J. Virtamo, Fountain-Inspired Erasure Coding for Real-Time Traffic: Performance Analysis and Simulation, Telecommunications Systems, pp. 219-232, Springer Netherlands, 2011, 10.1007/s11235-010-9330-2 (link)(bib)
  6. J. Nousiainen, J. Virtamo and P. Lassila, Maximum Weight Independent Sets in an Infinite Plane with Uni- and Bidirectional Interference Models, Annals of Telecommunications, vol. 66, 1--2, pp. 119-132, 2011 (pdf)(bib)(abstract)
  7. E. Hyytiä, J. Virtamo, S. Aalto and A. Penttinen, M/M/1-PS Queue and Size-Aware Task Assignment, Performance Evaluation, 2011, (IFIP Performance 2011, Amsterdam, Netherlands) (bib)(abstract)
  8. E. Hyytiä and J. Virtamo, On the Optimality of Field-Line Routing in Massively Dense Wireless Multi-Hop Networks, Performance Evaluation, vol. 66, 3--5, pp. 158-172, Elsevier, 2009 (pdf)(bib)(abstract)
  9. J. Leino, A. Penttinen and J. Virtamo, Flow-optimized random access for wireless multihop networks, Performance Evaluation, vol. 66, pp. 258-271, 2009 (link)(bib)(abstract)
  10. P. Lassila, A. Penttinen and J. Virtamo, Dimensioning of data networks: a flow-level perspective, European Transactions on Telecommunications, vol. 20, pp. 549-563, 2009 (bib)(abstract)
  11. V. Pla, J. Virtamo and J. Martínez-Bauset, Optimal robust policies for bandwidth allocation and admission control in wireless networks, Computer Networks, vol. 52, pp. 3258-3272, 2008 (bib)(abstract)
  12. E. Hyytiä and J. Virtamo, Random Waypoint Model in Cellular Networks, Wireless Networks, vol. 13, no. 2, pp. 177-188, 2007 (link)(bib)(abstract)
  13. J. Roszik, J. Sztrik and J. Virtamo, Performance Analysis of Finite-Source Retrial Queues Operating in Random Environments, International Journal of Operational Research, vol. 2, no. 3, pp. 254-268, 2007 (bib)
  14. E. Hyytiä and J. Virtamo, On Traffic Load Distribution and Load Balancing in Dense Wireless Multihop Networks, EURASIP Journal on Wireless Communications and Networking, vol. 2007, pp. Article ID 16932, 15 pages, 2007, Special Issue on Novel Techniques for Analysis & Design of Cross-Layer Optimized Wireless Sensor Networks (pdf)(bib)(abstract)
  15. A. Penttinen, J. Virtamo and R. Jäntti, Performance analysis in multi-hop radio networks with balanced fair resource sharing, Telecommunications Systems, vol. 31, no. 4, pp. 315-336, 2006 (link)(bib)(abstract)
  16. E. Hyytiä, P. Lassila and J. Virtamo, Spatial Node Distribution of the Random Waypoint Mobility Model with Applications, IEEE Transactions on Mobile Computing, vol. 5, no. 6, pp. 680-694, 2006 (pdf)(bib)(abstract)
  17. J. Leino and J. Virtamo, Insensitive Load Balancing in Data Networks, Computer Networks, vol. 50, no. 8, pp. 1059-1068, 2006 (link)(bib)(abstract)
  18. T. Bonald, L. Massoulié, A. Proutière and J. Virtamo, A Queueing Analysis of Max-Min Fairness, Proportional Fairness and Balanced Fairness, Queueing Systems, vol. 53, pp. 65-84, 2006 (bib)
  19. H. Koskinen, T. Tirronen and J. Virtamo, Exact distribution of Poisson shot noise with constant marks under power-law attenuation, Electronics Letters, vol. 42, no. 21, pp. 1237-1238, IEE, 2006 (link)(bib)
  20. E. Hyytiä and J. Virtamo, Random Waypoint Model in n-Dimensional Space, Operations Research Letters, vol. 33/6, pp. 567-571, 2005 (pdf)(bib)(abstract)
  21. T. Bonald and J. Virtamo, A recursive formula for multirate systems with elastic traffic, IEEE Communications Letters, vol. 9, pp. 753 - 755, 2005 (bib)
  22. A. Penttinen and J. Virtamo, Simulation of Two-Dimensional Fractional Gaussian Noise, Methodology and Computing in Applied Probability, vol. 6, no. 1, pp. 99-107, 2004 (link)(bib)(abstract)
  23. T. Bonald and J. Virtamo, Calculating the flow level performance of balanced fairness in tree networks, Performance Evaluation, vol. 58, pp. 1 - 14, 2004 (pdf)(bib)(abstract)
  24. E. Nyberg, J. Virtamo and S. Aalto, An Exact End-to-End Blocking Probability Algorithm for Multicast Networks, Performance Evaluation, vol. 54, no. 4, pp. 311-330, 2003 (pdf)(bib)(abstract)
  25. V. Sharma and J. Virtamo, A finite buffer queue with priorities, Performance Evaluation, vol. 47, no. 1, pp. 1-22, 2002 (bib)
  26. V. Sharma, J. Virtamo and P. Lassila, Performance Analysis of the Random Early Detection Algorithm, Probability in the Engineering and Informational Sciences, vol. 16, no. 3, pp. 367-388, 2002 (bib)
  27. E. Hyytiä and J. Virtamo, Adaptive Importance Sampling in Routing and Wavelength Assignment, European Transactions on Telecommunications (ETT), vol. 13, no. 4, pp. 331-339, 2002, Special Issue on Rare Event Simulation (bib)(abstract)
  28. J. Karvo, O. Martikainen, J. Virtamo and S. Aalto, Blocking of dynamic multicast connections, Telecommunication Systems, vol. 16, 3,4, pp. 467-481, 2001 (link)(bib)(abstract)
  29. H. Rummukainen and J. Virtamo, Polynomial Cost Approximations in Markov Decision Theory Based Least Cost Routing, IEEE Transactions on Networking, vol. 9, no. 6, pp. 769-779, 2001 (link)(bib)
  30. P. Lassila and J. Virtamo, Nearly Optimal Importance Sampling for Monte Carlo Simulation of Loss Systems, ACM Transactions on Modeling and Computer Simulation, vol. 10, no. 4, pp. 326-347, 2000 (link)(bib)
  31. I. Norros, E. Valkeila and J. Virtamo, An Elementary Approach to a Girsanov Formula and Other Analytical Results on Fractional Brownian Motion, Bernoulli, vol. 5, no. 4, pp. 571-587, 1999 (pdf)(bib)
  32. P. Lassila and J. Virtamo, Variance Reduction in Monte Carlo Simulation of Product Form Systems, IEE Electronics Letters, vol. 34, no. 12, 1998 (link)(bib)(abstract)
  33. S. Aalto, J. van den Berg, I. Norros, E. Smeitink and J. Virtamo, Architectural issues of connectionless overlay network, Telecommunications Systems, vol. 5, pp. 159-175, 1996 (bib)
  34. J. Virtamo and S.Valli, Vector quantization with hierarchical classification of sub-blocks, Image Communication, vol. 8, pp. 475-479, 1996 (bib)
  35. J. Virtamo, Numerical evaluation of the distribution of unfinished work in an M/D/1 system, Electronics Letters, vol. 31, no. 7, pp. 531-532, 1995 (bib)
  36. J. Virtamo and I. Norros, Fluid queue driven by an M/M/1 queue, Queuing Systems, vol. 16, pp. 373-386, 1994 (bib)
  37. J. Virtamo, A model of reservation systems, IEEE Transaction on Communications, vol. 40, no. 1, pp. 109-118, 1992 (bib)
  38. J. Virtamo and S. Aalto, Stochastic optimisation of reservation systems, European Journal of Operational Research, vol. 51, no. 3, pp. 327-337, 1991 (bib)
  39. J. Roberts and J. Virtamo, The superposition of periodic cell arrival streams in an ATM multiplexers, IEEE Transaction on Communications, vol. 39, no. 2, pp. 298-303, 1991 (bib)
  40. A. Simonian and J. Virtamo, Transient and stationary distri¬butions for fluid queues and input processes with a density, SIAM Journal of Applied Mathematics, vol. 51, no. 6, pp. 1732-1739, 1991 (bib)
  41. I. Norros, J. Roberts, A. Simonian and J. Virtamo, The superposition of variable bit rate sources in an ATM multi¬plexer, IEEE Journal on Special Areas on Communications, vol. 9, no. 3, pp. 378-387, 1991 (bib)
  42. J. Virtamo, Reciprocity of blocking probabilities in multiservice loss systems, IEEE Transaction on Communications, vol. 36, no. 10, pp. 1174-1175, 1988 (bib)

Conference Papers

  1. J. Nousiainen, J. Virtamo and P. Lassila, Multidirectional Forwarding Capacity in a Massively Dense Wireless Network, in 24th International Teletraffic Congress (ITC 24), 2012 (pdf)(bib)(abstract)
  2. J. Nousiainen, P. Lassila and J. Virtamo, Instantaneous Forwarding Capacity under SINR Threshold Interference Model, in Proceedings of 11th Annual Mediterranean Ad Hoc Networking Workshop (Med-Hoc-Net 2012), 2012 (pdf)(bib)(abstract)
  3. E. Hyytiä, J. Virtamo, P. Lassila, J. Kangasharju and J. Ott, When Does Content Float? Characterizing Availability of Anchored Information in Opportunistic Content Sharing, in Proceedings of IEEE INFOCOM, pp. 3123-3131, 2011, Shanghai, China (pdf)(bib)(abstract)
  4. J. Nousiainen, J. Virtamo and P. Lassila, Optimal Transmission Modes by Simulated Annealing, in Proceedings of 6th ACM Workshop on Performance Monitoring and Measurement of Heterogeneous Wireless and Wired Networks (PM2HW2N'11), pp. 101-108, 2011, Miami Beach, FL, USA (bib)(abstract)
  5. E. Hyytiä, A. Penttinen, S. Aalto and J. Virtamo, Dispatching problem with fixed size jobs and processor sharing discipline, in 23rd International Teletraffic Congress (ITC'23), 2011 (bib)(abstract)
  6. J. Nousiainen, J. Virtamo and P. Lassila, On the Achievable Forwarding Capacity of an Infinite Wireless Network, in Proceedings of ACM MSWiM, pp. 151-159, 2010, Bodrum, Turkey (pdf)(bib)(abstract)
  7. T. Tirronen and J. Virtamo, Performance Analysis of Sliding Window Based Erasure Correction for Real-Time Traffic, in 5th Euro-NGI Conference on Next Generation Internet Networks, NGI 2009, 2009, Aveiro, Portugal (bib)(abstract)
  8. J. Nousiainen, J. Virtamo and P. Lassila, Maximum Weight Independent Sets in an Infinite Plane, in 21st International Teletraffic Congress (ITC 21), pp. 1-8, 2009, Paris, France, (received the Best Student Paper Award) (pdf)(bib)(abstract)
  9. E. Hyytiä and J. Virtamo, Near-Optimal Load Balancing in Dense Wireless Multi-Hop Networks, in NGI 2008, 4th Conference on Next Generation Internet Networks, 2008, Krakow, Poland (pdf)(bib)(abstract)
  10. T. Tirronen and J. Virtamo, Greedy Approach for Efficient Packet Erasure Coding, in Proceedings of 5th International Symposium on Turbo Codes and Related Topics, pp. 344-349, 2008, Lausanne, Switzerland (bib)(abstract)
  11. J. Nousiainen, J. Virtamo and P. Lassila, Forwarding Capacity of an Infinite Wireless Network, in Proceedings of ACM MSWiM, pp. 177-184, 2008, Vancouver, Canada (pdf)(bib)(abstract)
  12. T. Tirronen and J. Virtamo, Finding Fountain Codes for Real-Time Data by Fixed Point Method, in Proceedings of 2008 International Symposium of Information Theory and its Applications, ISITA2008, pp. 1244-1249, 2008, Auckland, New Zealand (bib)(abstract)
  13. V. Pla, J. Virtamo and J. Martínez-Bauset, Optimal Robust Policies for Bandwidth Allocation and Admission Control in Wireless Networks, in Valuetools 2008, 3rd International Conference on Performance Evaluation Methodologies and Tools, 2008, Athens, Greece (link)(bib)(abstract)
  14. J. Leino and J. Virtamo, Determining the Moments of Queue-Length Distribution of Discriminatory Processor-Sharing Systems with Phase-Type Service Requirements, in Proceedings of NGI 2007, pp. 205-208, 2007, Trondheim, Norway (link)(bib)(abstract)
  15. A. Vidács and J. Virtamo, Minimum Transmission Energy Trajectories for a Linear Pursuit Problem, in Network Control and Optimization, Proceedings of NET-COOP 2007, pp. 286-295, Springer, LNCS 4465, 2007, Avignon, France (bib)(abstract)
  16. E. Hyytiä and J. Virtamo, On Optimality of Single-Path Routes in Massively Dense Wireless Multi-Hop Networks, in The 10th ACM/IEEE International Symposium on Modeling, Analysis and Simulation of Wireless and Mobile Systems (MSWiM), 2007, Crete Island, Greece (pdf)(bib)(abstract)
  17. J. Leino, A. Penttinen and J. Virtamo, Flow-optimized random access for wireless multihop networks, in Proceedings of the 10th ACM Symposium on modeling, analysis, and simulation of wireless and mobile systems (ACM MSWiM 2007), pp. 387-394, 2007, Chania, Crete Island (link)(bib)(abstract)
  18. E. Hyytiä, T. Tirronen and J. Virtamo, Optimal Degree Distribution for LT Codes with Small Message Length, in INFOCOM 2007, 26th IEEE International Conference on Computer Communications, pp. 2576-2580, 2007, Anchorage, Alaska, USA (pdf)(bib)(abstract)
  19. P. Lassila, A. Penttinen and J. Virtamo, Dimensioning methods for data networks with flow-level QoS requirements, in Proceedings of 32nd IEEE Conference on Local Computer Networks (LCN), pp. 353-359, 2007, Dublin, Ireland (pdf)(bib)(abstract)
  20. T. Tirronen and J. Virtamo, Performance Analysis of Divided Random Linear Fountain, in Global Telecommunications Conference 2007, GLOBECOM'07, pp. 520-526, 2007, Washington, DC, USA (link)(bib)(abstract)
  21. J. Leino, A. Penttinen and J. Virtamo, Approximating Flow Throughput in Complex Data Networks, in Proceedings of 20th International Teletraffic Congress (ITC-20), pp. 422-433, 2007, Ottawa, Canada (link)(bib)(abstract)
  22. E. Hyytiä and J. Virtamo, On Load Balancing in a Dense Wireless Multihop Network, in NGI 2006, 2nd Conference on Next Generation Internet Design and Engineering, pp. 72-79, 2006, València, Spain (pdf)(bib)(abstract)
  23. E. Hyytiä, P. Lassila and J. Virtamo, A Markovian Waypoint Mobility Model with Application to Hotspot Modeling, in Proceedings of IEEE ICC 2006, 2006 (pdf)(bib)(abstract)
  24. S. Liu and J. Virtamo, Inter-Cell Coordination with Inhomogeneous Traffic Distribution, in Proceeding of the Second EuroNGI Conference on Next Generation Internet Design and Enginering, NGI 2006, Valencia, Spain, pp. 64-71, 2006 (pdf)(bib)(abstract)
  25. J. Leino, A. Penttinen and J. Virtamo, Flow Level Performance Analysis of Wireless Data Networks: A Case Study, in Proceedings of IEEE ICC 2006, 2006, Istanbul, Turkey (link)(bib)(abstract)
  26. O. Apilo, P. Lassila and J. Virtamo, Performance of Local Forwarding Methods for Geographic Routing in Large Ad Hoc Networks, in Proceedings of The Fifth Annual Mediterranean Ad Hoc Networking Workshop (Med-Hoc-Net 2006), 2006, Lipari, Italy (pdf)(bib)(abstract)
  27. T. Bonald, A. Penttinen and J. Virtamo, On Light and Heavy Traffic Approximations of Balanced Fairness, in Proceedings of the Joint International Conference on Measurement and Modeling of Computer Systems SIGMETRICS/Performance 2006, pp. 109-120, 2006, Saint Malo, France (link)(bib)(abstract)
  28. I. Juva, S. Vaton and J. Virtamo, Quick Traffic Matrix Estimation Based on Link Count Covariances, in Proceedings of ICC 2006, 2006, Istanbul, Turkey. (bib)
  29. J. Leino and J. Virtamo, An Approximative Method for Calculating Performance Measures of Markov Processes, in Proceedings of Valuetools'06, 2006, Pisa, Italy (pdf)(bib)(abstract)
  30. R. Susitaival, S. Aalto and J. Virtamo, Analyzing the dynamics and resource usage of P2P file sharing systems by a spatio-temporal model, in International Workshop on P2P for High Performance Computational Sciences (P2P-HPCS06) in conjunction with ICCS, pp. 420-427, 2006 (pdf)(bib)(abstract)
  31. P. Lassila, A. Penttinen and J. Virtamo, Dimensioning of wireless mesh networks with flow-level QoS requirements, in The 3rd ACM International Workshop on Performance Evaluation of Wireless Ad Hoc, Sensor, and Ubiquitous Networks (PE-WASUN 2006), 2006, Torremolinos, Spain (pdf)(bib)(abstract)
  32. E. Hyytiä, T. Tirronen and J. Virtamo, Optimizing the Degree Distribution of LT Codes with an Importance Sampling Approach, in RESIM 2006, 6th International Workshop on Rare Event Simulation, 2006, Bamberg, Germany (pdf)(bib)
  33. H. Koskinen and J. Virtamo, Probability of successful transmission in a random slotted-Aloha wireless multihop network employing constant transmission power, in Proceedings of the 8th ACM MSWiM, pp. 191-199, 2005 (link)(bib)
  34. J. Leino and J. Virtamo, Optimal Load Balancing in Insensitive Data Networks, in Proceedings of QoS-IP 2005, pp. 313 - 324, 2005, Catania, Italy (link)(bib)(abstract)
  35. J. Leino and J. Virtamo, Insensitive Traffic Splitting in Data Networks, in Proceedings of 19th International Teletraffic Congress (ITC-19), pp. 1355-1364, 2005, Beijing, China (pdf)(bib)(abstract)
  36. S. Liu and J. Virtamo, Performance Analysis of Wireless Data Systems with a Finite Population of Mobile Users, in Proceedings of 19th International Teletraffic Congress (ITC-19), pp. 1295-1304, 2005 (bib)(abstract)
  37. M. Jonckheere and J. Virtamo, Optimal insensitive routing and bandwidth sharing in simple data networks, in Proceedings of ACM SIGMETRICS, pp. 193-204, 2005, Banff, Canada. (pdf)(bib)
  38. A. Penttinen and J. Virtamo, Performance of wireless ad hoc networks under balanced fairness, in Networking 2004. Networking Technologies, Services, and Protocols; Performance of Computer and Communication Networks; Mobile and Wireless Communications, vol. 3042, pp. 235 - 246, Springer Berlin / Heidelberg, Lecture Notes in Computer Science, 2004, Athens, Greece (link)(bib)(abstract)
  39. R. Susitaival, S. Aalto and J. Virtamo, Adaptive load balancing using MPLS, in Joint Conference 12th GI/ITG Conference on Measuring, Modelling and Evaluation of Computer and Communication Systems (MMB) together with 3rd Polish-German Teletraffic Symposium (PGTS), pp. 15 - 24, 2004, Dresden, Germany (pdf)(bib)(abstract)
  40. I. Juva, P. Kuusela and J. Virtamo, A Case Study on Traffic Matrix Estimation Under Gaussian Distribution, in Seventeenth Nordic Teletraffic Seminar, Fornebu, Norway, 25 - 27 August, pp. 49 - 60, 2004 (pdf)(bib)(abstract)
  41. R. Susitaival, J. Virtamo and S. Aalto, Load balancing by MPLS in differentiated services networks, in Proc. of International Workshop, Art-Qos 2003, pp. 252-264, 2003 (pdf)(bib)(abstract)
  42. T. Bonald, A. Proutière, J. Roberts and J. Virtamo, Computational aspects of balanced fairness, in Proceedings of the 18th International Teletraffic Congress (ITC-18), pp. 801 - 810, 2003, Berlin, Germany (pdf)(bib)(abstract)
  43. A. Penttinen and J. Virtamo, Improving Multicast Tree Construction in Static Ad Hoc Networks, in Proceedings of 28th Annual IEEE International Conference on Local Computer Networks (IEEE LCN 2003). Workshop on Wireless Local Networks, pp. 762-765, 2003, Königswinter/Bonn, Germany (link)(bib)(abstract)
  44. A. Penttinen and J. Virtamo, A packet marking algorithm for congestion pricing, in Proceedings of the 2002 International Symposium on Performance Evaluation of Computer and Telecommunication Systems (SPECTS 2002), pp. 379-385, 2002, San Diego, California, USA (pdf)(bib)(abstract)
  45. J. Karvo, S. Aalto and J. Virtamo, Blocking probabilities of multi-layer multicast streams, in Proc. HPSR 2002, pp. 268-277, 2002, Kobe, Japan (bib)(abstract)
  46. E. Kuumola, J. Resing and J. Virtamo, Joint Distribution of Instantaneous and Averaged Queue Length in an M/M/1/K System, in Proceedings of the 15th Teletraffic Congress Specialist Seminar ``Internet Traffic Engineering and Traffic Management'', pp. 58-67, 2002, Wurzburg, Germany (pdf)(bib)(abstract)
  47. S. Aalto, J. Karvo and J. Virtamo, Calculating blocking probabilities in multicast loss systems, in Proc. SPECTS 2002, pp. 833-842, 2002, San Diego, CA (bib)(abstract)
  48. E. Kuumola, J. Resing and J. Virtamo, Analytical Results on the Stochastic Behaviour of an Averaged Queue Length, in Proceedings of the Sixteenth Nordic Teletraffic Seminar, NTS 16, pp. 88-99, 2002 (pdf)(bib)(abstract)
  49. P. Kuusela, P. Lassila, J. Virtamo and P. Key, Modeling RED with Idealized TCP Sources, in Proceedings of IFIP ATM & IP 2001, pp. 155-166, 2001, Budapest, Hungary (pdf)(bib)
  50. P. Lassila, J. Karvo and J. Virtamo, Efficient Importance Sampling for Monte Carlo Simulation of Multicast Networks, in Proceedings of IEEE INFOCOM, pp. 432-439, 2001, Anchorage, Alaska (pdf)(bib)
  51. P. Kuusela, P. Lassila and J. Virtamo, Stability of TCP-RED Congestion Control, in Proceedings of ITC-17, pp. 655-666, Elsevier, 2001, Salvador da Bahia, Brazil (link)(bib)
  52. A. Penttinen and J. Virtamo, Robust Adaptive Capacity Allocation Algorithm, in Teletraffic Engineering in the Internet Era: Proceedings of the International Teletraffic Congress - ITC-17, pp. 223-231, North Holland, 2001, Salvador da Bahia, Brazil (bib)(abstract)
  53. J. Karvo, S. Aalto and J. Virtamo, Blocking probabilities of two-layer statistically indistinguishable multicast streams, in Proceedings of ITC-17, pp. 769-779, Elsevier, 2001, Salvador da Bahia, Brazil (link)(bib)(abstract)
  54. E. Hyytiä and J. Virtamo, Optimal Importance Sampling in Markov Process Simulation, in Applied Simulation and Modelling (ASM 2001), pp. 67-72, 2001, Marbella, Spain (pdf)(bib)(abstract)
  55. E. Hyytiä and J. Virtamo, Dynamic Routing and Wavelength Assignment Using First Policy Iteration, in The Fifth Symposium on Computers and Communications (ISCC'00), pp. 146-151, 2000, Antibes - Juan Les Pins, France (pdf)(bib)(abstract)
  56. E. Nyberg, J. Virtamo and S. Aalto, An exact algorithm for calculating blocking probabilities in multicast networks, in Networking 2000, pp. 275-286, 2000, Paris, France (bib)(abstract)
  57. E. Hyytiä and J. Virtamo, Dynamic Routing and Wavelength Assignment Using First Policy Iteration, Inhomogeneous case, in Performance and QoS of Next Generation Networking, pp. 301-316, 2000, Nagoya, Japan (bib)(abstract)
  58. A. Vidács and J. Virtamo, Parameter estimation of geometrically sampled fractional Brownian traffic, in Proceedings of IEEE Infocom, pp. 1791-1796, , 2000, Tel Aviv, Israel (pdf)(bib)
  59. P. Lassila and J. Virtamo, Modeling the dynamics of the RED algorithm, in Proceedings of Quality of Future Internet Services (QofIS), pp. 28-42, Sringer-Verlag, 2000, Berlin, Germany (link)(bib)
  60. P. Kuusela and J. Virtamo, Modeling RED with Two Traffic Classes, in Proceedings of the 15th Nordic Teletraffic Seminar (NTS-15), pp. 271-282, 2000, Lund, Sweden (pdf)(bib)
  61. S. Aalto and J. Virtamo, Combinatorial algorithm for calculating blocking probabilities in multicast networks, in Proceedings of the 15th Nordic Teletraffic Seminar, pp. 23-34, 2000, Lund, Sweden (pdf)(bib)(abstract)
  62. P. Lassila and J. Virtamo, Inverse convolution approach to importance sampling in Monte Carlo simulation of loss systems, in Proceedings of the 15th Nordic Teletraffic Seminar, pp. 161-172, 2000, Lund, Sweden (pdf)(bib)
  63. V. Sharma and J. Virtamo, A finite buffer queue, in Proceedings of Globecom, pp. 1053-1065, 1999, Rio de Janeiro, Brazil (link)(bib)
  64. A. Vidács and J. Virtamo, ML Estimation of the Parameters of FBM Traffic with Geometrical Sampling, in Proceedings of Broadband Communications'99 - Convergence of Network Technologies, pp. 51-62, Kluwer, 1999 (pdf)(bib)
  65. P. Lassila and J. Virtamo, Efficient Importance Sampling for Monte Carlo Simulation of Loss Systems, in Proceedings of ITC-16, pp. 787-796, Elsevier, 1999, Edinburgh, England (link)(bib)
  66. J. Karvo, J. Virtamo, S. Aalto and O. Martikainen, Blocking of dynamic multicast connections, in the 4th INFORMS Telecommunications Conference, 1998, Boca Raton, Florida, published later in Selected Proceedings in Telecommunication Systems (bib)(abstract)
  67. J. Karvo, J. Virtamo, S. Aalto and O. Martikainen, Blocking of dynamic multicast connections in a single link, in the Proceedings of the 4th International Conference on Broadband Communications (BC'98), IFIP TC6-WG6.2, ''The future of telecommunications'', pp. 473-483, Chapman & Hall, London, 1998, Stuttgart, Germany (pdf)(bib)(abstract)
  68. P. Lassila and J. Virtamo, Using Gibbs Sampler in Simulating Multiservice Loss Systems, in Performance of Information and Communications Systems '98 (arranged by IFIP TC6 WG6.3), 1998, Lund, Sweden (bib)(abstract)
  69. J. Virtamo and S. Aalto, Calculation of time-dependent blocking probabilities, in the Proceedings of the ITC Sponsored St. Petersburg Regional International Teletraffic Seminar Teletraffic Theory as a Base for QoS: Monitoring, Evaluation, Decisions, pp. 365-375, 1998, St. Petersburg (pdf)(bib)(abstract)
  70. P. Lassila and J. Virtamo, Efficient Monte Carlo Simulation of Product Form Systems, in Fourteenth Nordic Teletraffic Seminar, NTS-14, pp. 355-366, 1998, Copenhagen, Denmark (pdf)(bib)(abstract)
  71. E. Hyytiä and J. Virtamo, Wavelength Assignment and Routing in WDM Networks, in Fourteenth Nordic Teletraffic Seminar, NTS-14, pp. 31-40, 1998, Copenhagen, Denmark (pdf)(bib)(abstract)
  72. K. Kyläkoski and J. Virtamo, Cache Replacement Algorithms for the Renewal Arrival Model, in Fourteenth Nordic Teletraffic Seminar, NTS-14, pp. 139-148, 1998, Copenhagen, Denmark (pdf)(bib)(abstract)
  73. J. Virtamo, S. Aalto and D. Down, Window based estimation of the intensity of a doubly stochastic Poisson process, in Proceedings of International IFIP-IEEE Conference on Broadband Communications), pp. 294 - 305, 1996, Montreal, Canada (bib)
  74. S. Aalto and J. Virtamo, Basic packet routing problem, in 13th Nordic teletraffic seminar (NTS-13), pp. 85 - 97, 1996, Trondheim, Norway (bib)
  75. S. Aalto, J. van den Berg, I. Norros, E. Smeitink and J. Virtamo, Architectural issues of connectionless overlay network, in The First International ATM Traffic Expert Symposium, 1995, Basel, Switzerland (bib)
  76. S. Aalto and J. Virtamo, Real-time estimation of call arrival intensities, in ATM Hot Topics on Traffic and Performance, RACE Workshop, 1995, Milan, Italy (bib)
  77. S. Aalto and J. Virtamo, Topological optimization of the connectionless overlay network, in 12th Nordic teletraffic seminar (NTS-12), pp. 455 - 466, 1995, Espoo, Finland (bib)
  78. S. Aalto, J. van den Berg, E. Smeitink and J. Virtamo, Performance modelling and analysis of an ATM-DQDB interworking unit, in Proceedings of INTERWORKING'94 Symposium, pp. 89 - 98, 1994, Sophia Antipolis, France (bib)
  79. S. Aalto, I. Norros, J. Virtamo, K. Kvols and S. Manthorpe, Performance aspects of streaming and message modes of interworking, in Proceedings of INTERWORKING'92 Symposium, pp. 261 - 278, 1992, Bern, Switzerland (bib)

Technical Documents

  1. P. Lassila and J. Virtamo, Access network dimensioning for elastic traffic based on flow-level QoS, Networking Laboratory, Helsinki University of Technology, 2005 (pdf)(bib)(abstract)
  2. P. Lassila and J. Virtamo, Dimensioning of wireless mesh networks with flow-level QoS requirements, Networking Laboratory, Helsinki University of Technology, 2005 (bib)(abstract)
  3. E. Hyytiä, P. Lassila, L. Nieminen and J. Virtamo, Spatial Node Distribution in the Random Waypoint Mobility Model, COST279, TD(04)029, 2004 (pdf)(bib)(abstract)
  4. E. Hyytiä and J. Virtamo, Random Waypoint Model in n-Dimensional Space, COST279, TD(04)032, 2004 (pdf)(bib)(abstract)
  5. T. Bonald and J. Virtamo, Calculating flow level performance under balanced fairness, 2003 (pdf)(bib)(abstract)
  6. E. Kuumola, J. Resing and J. Virtamo, Joint distribution of instantaneous and averaged queue length in an M/M/1/K system, COST279, TD(02)22, 2002 (pdf)(bib)(abstract)
  7. R. Susitaival, J. Virtamo and S. Aalto, Load balancing by MPLS in differentiated services networks, COST279, TD(02)041, 2002 (pdf)(bib)(abstract)
  8. E. Nyberg, S. Aalto and J. Virtamo, Relating Flow Level Requirements to DiffServ Packet Level Mechanisms, COST279, TD(01)04, 2001 (pdf)(bib)(abstract)
  9. E. Hyytiä and J. Virtamo, Dynamic Routing and Wavelength Assignment Using First Policy Iteration, COST257, TD(00), 2000 (pdf)(bib)(abstract)
  10. P. Lassila and J. Virtamo, Nearly Optimal Importance Sampling for Monte Carlo Simulation of Loss Systems, COST257, TD(00), 2000 (pdf)(bib)(abstract)
  11. S. Aalto and J. Virtamo, Practical algorithm for calculating blocking probabilities in multicast networks, COST257, TD(00)29, 2000 (pdf)(bib)(abstract)
  12. E. Hyytiä and J. Virtamo, Wavelength assignment in multifiber networks, COST257, TD(99)04, 1999 (pdf)(bib)
  13. A. Vidacs and J. Virtamo, ML Estimation of the Parameters of FBM with Geometrical Sampling, COST257, TD(99)14, 1999 (pdf)(bib)
  14. E. Nyberg, J. Virtamo and S. Aalto, An exact algorithm for calculating blocking probabilities in multicast networks, COST257, TD(99)26, 1999 (pdf)(bib)(abstract)
  15. P. Lassila and J. Virtamo, Using Gibbs Sampler in Simulating Multiservice Loss Networks, COST257, TD(98)19, 1998 (pdf)(bib)(abstract)
  16. P. Lassila and J. Virtamo, Importance Sampling for Monte Carlo Simulation of Loss Systems, COST257, TD(98)49, 1998 (pdf)(bib)(abstract)
  17. J. Virtamo and S. Aalto, Blocking probabilities in a transient system, COST257, TD(97)14, 1997 (pdf)(bib)(abstract)
  18. J. Virtamo and S. Aalto, Remarks on the effectiveness of dynamic VP bandwidth management, COST257, TD(97)15, 1997 (pdf)(bib)(abstract)
  19. P. Lassila, J. Virtamo and S. Aalto, Two approaches to simulating loss networks, COST257, TD(97)30, 1997 (pdf)(bib)(abstract)
  20. P. Lassila and J. Virtamo, Regenerative Simulation Analysis for Loss Systems: Single Link and Single Traffic Type Case, COST257, TD(97)43, 1997 (pdf)(bib)(abstract)
  21. J. Karvo, J. Virtamo, S. Aalto and O. Martikainen, Blocking of dynamic multicast connections in a single link, COST257, TD(97)46, 1997 (pdf)(bib)(abstract)

Books

  1. P. Lassila, E. Nyberg and J. Virtamo (eds.), The sixteenth Nordic teletraffic seminar NTS-16, 2002, Espoo, Finland (bib)
  2. J. Roberts, U. Mocci and J. Virtamo (eds.), Broadband Network Teletraffic - Final report of Action COST 242, Springer, Lecture Notes in Computer Science, 1155, 1996 (bib)
  3. I. Norros and J. Virtamo (eds.), The twelfth Nordic teletraffic seminar NTS-12, 1995, Espoo, Finland, VTT Symposium 154 (bib)

Other Documents

  1. J. Virtamo, Markovin päätösprosessit - Proaktiivisuus stokastisissa järjestelmissä, talk in Proact Colloquium, March 8, 2005 (bib)
  2. J. Virtamo, Presentation of the NAPS project, Final Seminar of the PROACT Programme, December 2, 2005 (pdf)(bib)
  3. O. Apilo, E. Hyytiä, H. Koskinen, P. Lassila, A. Penttinen and J. Virtamo, Wireless Multihop Networks, 2006, Presentation slides, Wireless Ad Hoc and Sensor Networks for Security Applications, Helsinki University of Technology, May 22, 2006 (bib)
  4. I. Juva, S. Vaton and J. Virtamo, Quick Traffic Matrix Estimation Based on Link Count Covariances, in EURO NGI Workshop on Traffic Engineering, Protection and Restoration, Rome, Italy, 2005 (pdf)(bib)(abstract)
  5. I. Juva, P. Kuusela and J. Virtamo, A Case Study on Traffic Matrix Estimation Under Gaussian Distribution, Technical Document, 2004 (pdf)(bib)(abstract)
  6. J. Virtamo and I. Norros, FIT Future Internet: Traffic Handling and Performance Analysis, Final Report, Networking Laboratory, TKK, 2004 (pdf)(bib)(abstract)
  7. A. Penttinen and J. Virtamo, Sensoriverkot - Haaste tutkimukselle, in Suomen Sotilas, no. 5, pp. 34-38, 2004 (bib)
  8. J. Virtamo, Fountain codes - Suihkulähdekoodit, Presentation slides from Research Seminar (November 12, 2004), 2004 (bib)
  9. J. Virtamo, Balanced fairness, Presentation slides, 2003 (pdf)(bib)
  10. J. Virtamo, Insensitivity of a network of symmetric queues with balanced service rates, Internal Report, 2003 (pdf)(bib)(abstract)
  11. A. Penttinen and J. Virtamo, Improving Multicast Tree Construction in Static Ad Hoc Networks, 2003, Poster presented at WLN 2003 (size A1) (pdf)(bib)
  12. J. van Leeuwaarden, S. Aalto and J. Virtamo, Load Balancing in Cellular Networks Using First Policy Iteration, Technical Report, Networking Laboratory, Helsinki University of Technology, 2001 (pdf)(bib)(abstract)
  13. A. Vidács and J. Virtamo, Time Domain MLE of the Parameters of FBM Traffic, Laboratory Report Series, Networking Laboratory, 2/99, 1999 (pdf)(bib)