On the Shaping Introduced by IEEE 802.11 Nodes in Long-Range Dependent Traffic

  • David Rincón
  • David Remondo
  • Cristina Cano
Conference paper
Part of the Lecture Notes in Computer Science book series (LNCS, volume 4396)

Abstract

Fractal or scaling phenomena, such as self-similarity and long-range dependence, have been detected in network traffic, with important implications for network performance. This paper describes how the characteristics of traffic change when it traverses IEEE 802.11 networks. First, a simple, unidirectional traffic scenario with two nodes has been simulated. This scenario and two more general situations that include the hidden node situation and the effect of relaying (which appears in multihop communications) have been replicated in a real testbed. The most significant results are the smoothing effect of the MAC mechanisms on the traffic at the highest frequencies, while at the lowest frequencies a mitigation of fractality seems to be caused by packet loss induced by propagation impairments, with an overall effect of mitigation of the scaling characteristics on the output traffic. On the other hand, the scenarios with traffic aggregation show an increase of fractality.

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Copyright information

© Springer Berlin Heidelberg 2007

Authors and Affiliations

  • David Rincón
    • 1
  • David Remondo
    • 1
  • Cristina Cano
    • 2
  1. 1.Technical University of Catalonia (UPC), Av. Canal Olímpic s/n, Castelldefels - 08860 BarcelonaSpain
  2. 2.Pompeu Fabra University (UPF), Pg. de Circumval.lació, 8 - 08003 BarcelonaSpain

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