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

Authors:
Claude Chaudet;Isabelle Guérin Lassous;Eric Thierry;Bruno Gaujal
Affiliations:
INRIA ARES Project, Cedex, France;INRIA ARES Project, Cedex, France;INRIA TRIO Project, Cedex, France;INRIA TRIO Project, Cedex, France
Venue:
PE-WASUN '04 Proceedings of the 1st ACM international workshop on Performance evaluation of wireless ad hoc, sensor, and ubiquitous networks
Year:
2004

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Abstract

This article presents a theoretical modeling of a small but basic scenario that shows a great inequity in medium access between nodes using the IEEE 802.11 DCF mode. In this 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 a discussion on the different performance loss causes follows.