Network-Wide Measurements of TCP RTT in 3G

  • Peter Romirer-Maierhofer
  • Fabio Ricciato
  • Alessandro D’Alconzo
  • Robert Franzan
  • Wolfgang Karner
Part of the Lecture Notes in Computer Science book series (LNCS, volume 5537)

Abstract

In this study we present network-wide measurements of Round-Trip-Time (RTT) from an operational 3G network, separately for GPRS/EDGE and UMTS/HSxPA sections. The RTTs values are estimated from passive monitoring based on the timestamps of TCP handshaking packets. Compared to a previous study in 2004, the measured RTT values have decreased considerably. We show that the network-wide RTT percentiles in UMTS/HSxPA are very stable in time and largely independent from the network load. Additionally, we present separate RTT statistics for handsets and laptops, finding that they are very similar in UMTS/HSxPA. During the study we identified a problem with the RTT measurement methodology — mostly affecting GPRS/EDGE data — due to early retransmission of SYNACK packets by some popular servers.

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References

  1. 1.
    Benko, P., Malicsko, G., Veres, A.: A Large-scale, Passive Analysis of End-to-End TCP Performance over GPRS. In: IEEE INFOCOM 2004 (2004)Google Scholar
  2. 2.
    Vacirca, F., Ricciato, F., Pilz, R.: Large-Scale RTT Measurements from an Operational UMTS/GPRS Network. In: Proc. of WICON 2005, Budapest (July 2005)Google Scholar
  3. 3.
    Jurvansuu, M., Prokkola, J., Hanski, M., Perälä, P.: HSDPA Performance in Live Networks. In: Proc. of IEEE ICC 2007, Glasgow (June 2007)Google Scholar
  4. 4.
    Barbuzzi, A., Ricciato, F., Boggia, G.: Discovering parameter setting in 3G networks via active measurements. IEEE Comm. Letters 12(10) (October 2008)Google Scholar
  5. 5.
    Bannister, J., Mather, P., Coope, S.: Convergence Technologies for 3G Networks: IP, UMTS, EGPRS and ATM. Wiley, Chichester (2004)Google Scholar
  6. 6.
    METAWIN and DARWIN projects: http://userver.ftw.at/~ricciato/darwin
  7. 7.
    Dahlman, E., Parkvall, S., Skold, J., Beming, P.: 3G Evolution: HSPA and LTE for Mobile Broadband, 2nd edn. Academic Press, Elsevier (2008)Google Scholar
  8. 8.
    Romirer-Maierhofer, P., Ricciato, F., Coluccia, A.: Explorative Analysis of One-way Delays in a Mobile 3G Network. In: IEEE LANMAN 2008, Cluj-Napoca, Romania (September 2008)Google Scholar
  9. 9.
    Heikkinen, M.V.J., Kivi, A., Verkasalo, H.: Measuring Mobile Peer-to-Peer Usage: Case Finland 2007. In: PAM 2009, Seoul (April 2009)Google Scholar
  10. 10.
    RFC 1122: Requirements for Internet Hosts — Communication Layers (October 1989)Google Scholar

Copyright information

© Springer-Verlag Berlin Heidelberg 2009

Authors and Affiliations

  • Peter Romirer-Maierhofer
    • 1
  • Fabio Ricciato
    • 1
    • 3
  • Alessandro D’Alconzo
    • 1
  • Robert Franzan
    • 1
  • Wolfgang Karner
    • 2
  1. 1.Forschungszentrum Telekommunikation WienAustria
  2. 2.mobilkom austria AGAustria
  3. 3.Università del SalentoItaly

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