Experimental Analysis and Characterization of Packet Delay in UMTS Networks

  • Jose Manuel Cano-Garcia
  • Eva Gonzalez-Parada
  • Eduardo Casilari
Part of the Lecture Notes in Computer Science book series (LNCS, volume 4003)


This paper presents the results of a set of experiments aiming to characterize the behaviour of the IP data service over a real UMTS network. According to our empirical measurements, packet losses are not frequent, meaning that UMTS link-level retransmission mechanisms are adequate to cope with data corruption through the wireless link. However, ARQ loss recovery mechanisms produce a high variability of the packet delay, which can also affect the performance of the IP data service. By analysing actual UMTS traces, we explore the behaviour of the packet delay through the UMTS network, explaining the effects of the underlying mechanisms. Finally, we derive a simple model to imitate the behaviour of UMTS Internet access. This model could be very useful in simulation or emulation experiments.


Packet Loss User Equipment Packet Delay Universal Mobile Telecommunication System Transport Control Protocol 


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Copyright information

© Springer-Verlag Berlin Heidelberg 2006

Authors and Affiliations

  • Jose Manuel Cano-Garcia
    • 1
  • Eva Gonzalez-Parada
    • 1
  • Eduardo Casilari
    • 1
  1. 1.Electronic Technology DepartmentUniversity of MalagaSpain

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