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Delay Performance Analysis and Simulation of Real-time Applications in GPRS Networks

Authors
Irnich, Tim and Eges, D.
Department of Communication Networks (ComNets), Faculty 6, RWTH Aachen University Kontakt: publications@comnets.rwth-aachen.de

In Proc. SPECTS 2003, 2003.
Publication Date: Jul, 2003
On page(s):
ISBN:

Abstract
Motivated by earlier results we discuss the feasibility of calculating the delay performance of real-time applications in packet-based mobile radio networks like the GSM General Packet Radio Service (GPRS) by means of the Fluid-flow modelling (FFM) approach. We determine the required source parameters that represent the mean offered traffic in typical GPRS load scenarios by stochastic simulation. Using these source parameters for definition of a source model that is applicable to Fluid-flow analysis, we determine the mean IP delay for downlink IP GPRS traffic. The FFM analysis' results are compared with results of the GPRS emulation tool GPRSim. Our results show that the FFM's basic assumption of fluid data (i.e., infinitely small packets) and some details of radio resource management and scheduling in GPRS networks lead to deviations between FFM and simulation results, although the traffic source behavior is well captured by the FFM's source model. Based on the observation that under certain conditions the GPRS resource allocation strategy allows the GPRS system to be separated into subsystems, we propose to examine the analytical methodology of multi-queue cyclic service systems for GPRS analysis.
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Bibtex
@INPROCEEDINGS{IrnichEgesSPECTS03,
  AUTHOR          = {Irnich, T. and Eges, D.},
  TITLE           = {Delay Performance Analysis and Simulation of Real-time Applications in
                    GPRS Networks},
  JOURNAL         = {Proc. SPECTS 2003},
  YEAR            = {2003},
  MONTH           = {Jul},
  VOLUME          = {0},
  EDITOR          = {M. Obaidat and F. Davoli and I. Onyuksel and R. Bo},
  AFFILIATION     = {Department of Communication Networks (ComNets), Faculty 6, RWTH Aachen University},
  ANNOTE          = {General Packet Radio Service, GPRS, Analysis, Internet Applications,
                    Dimensioning, Fluid-flow Model, Validation, Event Driven Simulatio},
  URL             = {http://www.comnets.rwth-aachen.de} 
}
Letzte Änderung:  8.05.2008 12.16