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inria-00100142, version 1

Study of the impact of asymmetry and carrier sense mechanism in IEEE 802.11 multi-hops networks through a basic case

Claude Chaudet a1, Isabelle Guérin Lassous b1, Eric Thierry c2, Bruno Gaujal () d2

Proceedings of the First ACM Workshop on Performance Evaluation of Wireless Ad Hoc, Sensor, and Ubiquitous Networks - PE-WASUN'2004 (2004) 7 p

Résumé : This article presents a theoretical modeling of a small but characteristic scenario that shows a great inequity in medium access between nodes using the IEEE 802.11 DCF mode. In his configuration, two terminals evolve independently and are almost never synchronized, which results in a serious performance issue for a third emitter in between. The results are compared to simulation results and are followed by a discussion on the different performance loss causes.

  • a –  INSA - LYON
  • b –  INSA-LYON
  • c –  ENS - LYON
  • d –  INRIA
  • 1 :  ARES (CITI Insa Lyon / INRIA Grenoble Rhône-Alpes)
  • INRIA – Institut National des Sciences Appliquées (INSA) - Lyon
  • 2 :  TRIO (INRIA Lorraine - LORIA)
  • INRIA – CNRS : UMR7503 – Université Henri Poincaré - Nancy I – Université Nancy II – Institut National Polytechnique de Lorraine (INPL)
  • Domaine : Informatique/Autre
  • Mots-clés : Asymmetry – asynchronisation – Carrier Sense – IEEE 802.11 – performance evaluation – simulation || asymétrie – évaluation de performance – simulation
  • Référence interne : A04-R-493 || chaudet04b
  • Commentaire : Colloque avec actes et comité de lecture. internationale.
 
  • inria-00100142, version 1
  • oai:hal.inria.fr:inria-00100142
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  • Soumis le : Mardi 26 Septembre 2006, 10:14:39
  • Dernière modification le : Mardi 29 Mai 2007, 10:11:59