TKK | Tietoverkkolaboratorio

[Samuli]

Samuli Aalto

Ph.D., Chief Research Scientist, Docent, Prof. (pro tem)

Refereed publications

Articles in refereed international scientific journals

  1. J.T. Virtamo and S. Aalto,
    Stochastic optimization of reservation systems, European Journal of Operational Research 51, 327-337, 1991
  2. S. Aalto, J.L. van den Berg, I. Norros, E. Smeitink and J.T. Virtamo,
    Architectural issues of ATM based connectionless overlay network, Telecommunication Systems 5, 159-175, 1996
  3. S. Aalto,
    Characterization of the output rate process for a Markovian storage model, Journal of Applied Probability 35, 184-199, 1998
  4. S. Aalto,
    Output of a multiplexer loaded by heterogeneous on-off sources, Communications in Statistics - Stochastic Models 14, 993-1005, 1998
  5. S. Aalto,
    Optimal control of batch service queues with compound Poisson arrivals and finite service capacity, Mathematical Methods of Operations Research 48, 317-335, 1998
  6. S. Aalto,
    Optimal control of batch service queues with finite service capacity and linear holding costs, Mathematical Methods of Operations Research 51, 263-285, 2000
  7. S. Aalto and W. Scheinhardt,
    Tandem fluid queues fed by homogeneous on-off sources, Operations Research Letters 27, 73-82, 2000
  8. J. Karvo, O. Martikainen, J. Virtamo and S. Aalto,
    Blocking of dynamic multicast connections, Telecommunication Systems 16, 467-481, 2001
  9. S. Aalto,
    Required work in the M/M/1 queue, with application in IP packet processing, Telecommunication Systems 16, 555-560, 2001
  10. E. Nyberg, J. Virtamo and S. Aalto,
    An exact end-to-end blocking probability algorithm for multicast networks, Performance Evaluation 54, 311-330, 2003
  11. S. Aalto, U. Ayesta and E. Nyberg-Oksanen,
    M/G/1/MLPS compared to M/G/1/PS, Operations Research Letters 33, 519-524, 2005
  12. S. Aalto, J. Aaltonen and J. Karvo,
    Quantitative performance comparison of different content distribution modes, Performance Evaluation 63, 395-422, 2006
  13. S. Aalto and U. Ayesta,
    On the nonoptimality of the foreground-background discipline for IMRL service times, Journal of Applied Probability 43, 523-534, 2006
  14. S. Aalto,
    M/G/1/MLPS compared with M/G/1/PS within service time distribution class IMRL, Mathematical Methods of Operations Research 64, 309-325, 2006
  15. R. Susitaival, I. Juva, M. Peuhkuri and S. Aalto,
    Characteristics of origin-destination pair traffic in Funet, extended version, Telecommunication Systems 33, 67-88, 2006
  16. S. Aalto, U. Ayesta, S. Borst, V. Misra and R. Nunez-Queija,
    Beyond Processor Sharing, ACM Sigmetrics Performance Evaluation Review 34, 4, 36-43, 2007
    (Special issue: New Perspectives in Scheduling)
    INVITED PAPER
  17. S. Aalto and U. Ayesta,
    Recent sojourn time results for Multilevel Processor-Sharing scheduling disciplines, Statistica Neerlandica 62, 266-282, 2008
    (Special issue: Eurandom 1998–2008. A random tour through a decade of research)
    INVITED PAPER
  18. S. Aalto and U. Ayesta,
    SRPT applied to bandwidth-sharing networks, Annals of Operations Research 170, 3-19, 2009
    (Special Issue: Stochastic Performance Models for Resource Allocation in Communication Systems)
  19. S. Aalto, U. Ayesta and R. Righter,
    On the Gittins index in the M/G/1 queue, Queueing Systems 63, 437-458, 2009
    (Special Issue: 100 years of queueing - The Erlang Centennial)
  20. E. Hyytiä, S. Aalto, A. Penttinen and R. Sulonen,
    A stochastic model for a vehicle in a dial-a-ride system, Operations Research Letters 38, 432-435, 2010
  21. S. Aalto, U. Ayesta and R. Righter,
    Properties of the Gittins index with application to optimal scheduling, Probability in the Engineering and Informational Sciences 25, 269-288, 2011
  22. E. Hyytiä, J. Virtamo, S. Aalto and A. Penttinen,
    M/M/1-PS queue and size-aware task assignment, Performance Evaluation 68, 1136-1148, 2011
  23. E. Hyytiä, A. Penttinen and S. Aalto,
    Size- and state-aware dispatching problem with queue-specfic job sizes, European Journal of Operational Research 271, 357-370, 2012
  24. S. Aalto, A. Penttinen, P. Lassila and P. Osti,
    Optimal size-based opportunistic scheduler for wireless systems, accepted to Queueing Systems, 2012
    (Special Issue on Recent Trends in the Mathematics of Wireless Communication Networks: Algorithms, Models and Methods)
  25. E. Hyytiä, S. Aalto, A. Penttinen and J. Virtamo,
    On the value function of the M/G/1 FCFS and LCFS queues, to appear in Journal of Applied Probability 49, 4, December 2012

Articles in refereed international scientific compilations and conference proceedings

  1. S. Aalto, I. Norros, J. Virtamo, K. Kvols and S. Manthorpe,
    Performance aspects of streaming and message modes of interworking, in Interworking in Broadband Networks (Proceedings of INTERWORKING'92 Symposium, Bern, Switzerland, November 1992), ed. S. Rao, IOS Press, Amsterdam, pp. 261-278, 1993
  2. S. Aalto, J.L. van den Berg, E. Smeitink and J.T. Virtamo,
    Performance modelling and analysis of an ATM-DQDB interworking unit, in Interoperability in Broadband Networks (Proceedings of INTERWORKING'94 Symposium, Sophia Antipolis, France, May 1994), ed. S. Rao, IOS Press, Amsterdam, pp. 89-98, 1994
  3. S. Aalto,
    Output from an A-M-S type fluid queue, in The Fundamental Role of Teletraffic in the Evolution of Telecommunications Networks, (Proceedings of the 14th International Teletraffic Congress ITC-14, Antibes Juan-les-Pins, France, June 1994), eds. J. Labetoulle and J.W. Roberts, Elsevier, Amsterdam, pp. 421-430, 1994
  4. J. Virtamo, S. Aalto and D. Down,
    Window based estimation of the intensity of a doubly stochastic Poisson process, in Broadband Communications - Global infrastructure for the information age, (Proceedings of International IFIP-IEEE Conference on Broadband Communications, Montreal, Canada, April 1996), eds. L. Mason and A. Casaca, Chapman & Hall, London, pp. 294-305, 1996
  5. J. Karvo, J. Virtamo, S. Aalto and O. Martikainen,
    Blocking of dynamic multicast connections in a single link, in Broadband Communications - The Future of Telecommunications, (Proceedings of IFIP TC6/WG6.2 Fourth International Conference on Broadband Communications BC'98, Stuttgart, Germany, April 1998), eds. P.J. Kuhn and R. Ulrich, Chapman & Hall, London, pp. 473-483, 1998
  6. J. Virtamo and S. Aalto,
    Calculation of time-dependent blocking probabilities, in Teletraffic theory as a basis for QOS: Monitoring, Evaluation, Decisions, (Proceedings of ITC sponsored St. Petersburg Regional International Teletraffic Seminar, St. Petersburg, Russia, June 1998), eds. B. Goldstein, A. Koucheryavy and M. Shneps-Shneppe, LONIIS, St. Petersburg, pp. 365-375, 1998
  7. J. Karvo and S. Aalto,
    Average signalling load for multicast group management, in Teletraffic Engineering in a Competetive World (Proceedings of the 16th International Teletraffic Congress ITC-16, Edinburgh, UK, June 1999), eds. P. Key and D. Smith, Elsevier, Amsterdam, pp. 509-518, 1999
  8. E. Nyberg, J. Virtamo and S. Aalto,
    An exact algorithm for calculating blocking probabilities in multicast networks, in Networking 2000 (Proceedings of IFIP-TC6 / European Commission International Conference, Paris, France, May 2000), LNCS 1815, Springer, pp. 275-286, 2000
  9. J. Karvo, S. Aalto and J. Virtamo,
    Blocking probabilities of two-layer statistically indistinguishable multicast streams, in Teletraffic Engineering in the Internet Era (Proceedings of the 17th International Teletraffic Congress ITC-17, Salvador da Bahia, Brazil, December 2001), eds. J. Moreira da Souza, N.L.S. Fonseca and E.A. de Souza da Silva, Elsevier, Amsterdam, pp. 769-779, 2001
  10. E. Nyberg and S. Aalto,
    How to achieve fair differentiation, in Networking 2002 (Proceedings of the Second IFIP-TC6 Networking Conference, Pisa, Italy, May 2002), LNCS 2345, Springer, pp. 1178-1183, 2002
  11. J. Karvo, S. Aalto and J. Virtamo,
    Blocking probabilities of multi-layer multicast streams, in HPSR 2002 (Proceedings of 2002 Workshop on High Performance Switching and Routing, Kobe, Japan, May 2002), pp. 268-277, 2002
  12. S. Aalto, J. Karvo and J. Virtamo,
    Calculating blocking probabilities in multicast loss systems, in SPECTS 2002 (Proceedings of 2002 International Symposium on Performance Evaluation of Computer and Telecommunication Systems, San Diego, CA, July 2002), eds. M. Obaidat, F. Davoli, I. Onyuksel and R. Bolla, pp. 833-842, 2002
  13. J. Aaltonen, J. Karvo and S. Aalto,
    Multicasting vs. unicasting in mobile communication systems, in WoWMoM 2002 (Proceedings of The Fifth International Workshop on Wireless Mobile Multimedia, Atlanta, Georgia, September 2002), pp. 104-108, 2002
  14. E. Nyberg and S. Aalto,
    Differentiation and interaction of traffic: a flow level study, in Art-QoS 2003 (Proceedings of Workshop on Architectures for Quality of Service in the Internet, Warsaw, Poland, March 2003), LNCS 2698, Springer, pp. 276-290, 2003
  15. R. Susitaival, J. Virtamo and S. Aalto,
    Load balancing by MPLS in differentiated services networks, in Art-QoS 2003 (Proceedings of Workshop on Architectures for Quality of Service in the Internet, Warsaw, Poland, March 2003), LNCS 2698, Springer, pp. 252-264, 2003
  16. S. Aalto, U. Ayesta and E. Nyberg-Oksanen,
    Two-level processor-sharing scheduling disciplines: mean delay analysis, in ACM SIGMETRICS - PERFORMANCE 2004 (Proceedings of Joint International Conference on Measurement and Modeling of Computer Systems, New York, NY, June 2004), pp. 97-105, 2004
  17. R. Susitaival and S. Aalto,
    Adaptive load balancing with OSPF, in HET-NETs '04 (Second International Conference on the Performance Modelling and Evaluation of Heterogeneous Networks,Ilkley, UK, July 2004), paper 9, 2004
  18. R. Susitaival, S. Aalto and J. Virtamo,
    Adaptive load balancing using MPLS, in MMB & PGTS 2004 (Proceedings of 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), Dresden, Germany, September 2004), pp. 15-24, 2004
  19. I. Juva, R. Susitaival, M. Peuhkuri and S. Aalto,
    Traffic characterization for traffic engineering purposes: analysis of Funet data, in NGI 2005 (1st Conference on Next Generation Internet Networks, Rome, April 2005), pp. 404-411, 2005
  20. S. Aalto and U. Ayesta,
    Mean delay analysis of multi level processor sharing disciplines, in IEEE Infocom 2006 (25th Annual Conference on Computer Communications, Barcelona, April 2006), pp. 2097-2107, 2006
  21. R. Susitaival, I. Juva, M. Peuhkuri and S. Aalto,
    Characteristics of origin-destination pair traffic in Funet, in IEEE ICN'06 (5th International Conference on Networking, Mauritius, April 2006), 2006
  22. R. Susitaival, S. Aalto and J. Virtamo,
    Analyzing the dynamics and resource usage of P2P file sharing by a spatio-temporal model, in P2P-HPCS'06 (2006 International Workshop on P2P for High Performance Computational Sciences, Reading, UK, May 2006), LNCS 3994, Springer, pp. 420-427, 2006
  23. R. Susitaival and S. Aalto,
    Modelling the population dynamics and the file availability in a bitTorrent-like p2p system with decreasing peer arrival rate, in IWSOS 2006 (New Trends in Network Architectures and Services: International Workshop on Self-Organizing Systems, Passau, Germany, September 2006), LNCS 4124, Springer, pp. 34-48, 2006
  24. R. Susitaival and S. Aalto,
    Analyzing the file availability and download time in a P2P file sharing system, in NGI 2007 (3rd EURO-NGI Conference on Next Generation Internet Networks, Trondheim, Norway, May 2007), IEEE Press, pp. 88-95, 2007
  25. S. Aalto and U. Ayesta,
    Mean delay optimization for the M/G/1 queue with Pareto type service times, in ACM SIGMETRICS 2007 (International Conference on Measurement and Modeling of Computer Systems, San Diego, CA, June 2007), pp. 383-384, 2007
  26. S. Aalto and P. Lassila,
    Impact of size-based scheduling on flow level performance in wireless downlink data channels, in ITC-20 (20th International Teletraffic Congress, Ottawa, Canada, June 2007), LNCS 4516, Springer, pp. 1096-1107, 2007
  27. I. Juva, R. Susitaival, M. Peuhkuri and S. Aalto,
    Effects of spatial aggregation on the characteristics of origin-destination pair traffic in Funet, in NEW2AN 2007 (7th International Conference on Next Generation Teletraffic and Wired/Wireless Advanced Networking, St. Petersburg, Russia, September 2007), LNCS 4712, Springer, pp. 1-12, 2007
  28. S. Aalto and U. Ayesta,
    Optimal scheduling of jobs with a DHR tail in the M/G/1 queue, in ValueTools 2008 (Third International Conference on Performance Evaluation Methodologies and Tools, Athens, Greece, October 2008)
  29. P. Lassila and S. Aalto,
    Combining opportunistic and size-based scheduling in wireless systems, in ACM MSWiM 2008 (The 11-th ACM International Conference on Modeling, Analysis and Simulation of Wireless and Mobile Systems, Vancouver, Canada, October 2008), pp. 323-332, 2008
  30. R. Susitaival and S. Aalto,
    Adaptive load balancing with OSPF, extended version, in Traffic and Performance Engineering for Heterogeneous Networks, ed. D.D. Kouvatsos, River Publishers, Gistrup, Denmark, pp. 85-107, 2009
  31. S. Aalto and P. Lassila,
    Flow-level stability and performance of channel-aware priority-based schedulers, in NGI 2010 (6th EURO-NF Conference on Next Generation Internet, Paris, June 2010)
    BEST PAPER AWARD
  32. S. Aalto, P. Lassila, P. Savolainen and S. Tarkoma,
    Segmented P2P Video-on-Demand: Modeling and performance, in ITC-22 (22nd International Teletraffic Congress, Amsterdam, Netherlands, September 2010)
  33. J. Melasniemi, P. Lassila and S. Aalto,
    Minimizing file transfer delays using SRPT in HSDPA with terminal constraints, in NET-COOP’10, (4th Workshop on Network Control and Optimization, Ghent, Belgium, November/December 2010), pp. 17-24, 2010
  34. S. Aalto, P. Lassila, N. Raatikainen, P. Savolainen and S. Tarkoma,
    P2P Video-on-Demand: Steady state and scalability, in IEEE Globecom 2010 (Communications QoS, Reliability and Modelling Symposium, Miami, FL, December 2010)
  35. S. Aalto, A. Penttinen, P. Lassila and P. Osti,
    On the optimal trade-off between SRPT and opportunistic scheduling, in ACM SIGMETRICS 2011 (International Conference on Measurement and Modeling of Computer Systems, San Jose, CA, June 2011), pp. 185-195, 2011
  36. S. Aalto, P. Lassila, P. Savolainen and S Tarkoma,
    How impatience affects the performance and scalability of P2P video-on-demand systems, in MAMA 2011 (The Thirteenth Workshop on Mathematical Performance Modeling and Analysis, San Jose, CA, June 2011), pp. 58-60, 2011
  37. E. Hyytiä, A. Penttinen, S. Aalto and J. Virtamo,
    Dispatching problem with fixed size jobs and processor sharing discipline, in ITC-23 (23rd International Teletraffic Congress, San Francisco, CA, September 2011), pp. 190-197, 2011
  38. A. Penttinen, E. Hyytiä and S. Aalto,
    Energy-aware dispatching in parallel queues with on-off energy consumption, in IEEE IPCCC 2011 (30th IEEE International Performance Computing and Communications Conference, Orlando, FL, USA, November 2011)
  39. E. Hyytiä, S. Aalto and A. Penttinen,
    Minimizing slowdown in heterogeneous size-aware dispatching systems, accepted to ACM SIGMETRICS/Performance 2012, (International Conference on Measurement and Modeling of Computer Systems London, UK, June 2012)
  40. P. Lassila, A. Penttinen and S. Aalto,
    Flow-level modeling and analysis of dynamic TDD in LTE, accepted to NGI 2012 (8th EURO-NF Conference on Next Generation Internet, Karlskrona, Sweden, June 2012)
  41. P. Osti, P. Lassila and S. Aalto,
    Optimal intercell coordination for multiple user classes with elastic traffic, accepted to NGI 2012 (8th EURO-NF Conference on Next Generation Internet, Karlskrona, Sweden, June 2012)
  42. M. Sevalnev, S. Aalto, J. Kommeri and T. Niemi,
    Using queueing theory for controlling the number of computing servers, accepted to ICGREEN 2012 (Third International Conference on Green IT Solutions, Geneva, Switzerland, July 2012)

Theses

  1. S. Aalto,
    Studies in Queueing Theory, Ph.D. Dissertation, University of Helsinki, 1998

Patents

  1. J. Virtamo and S. Aalto,
    Procedure for controlling an elevator group, US Patent 5,503,249, 1996

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