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

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.