Extended AODV For Multi-Hop WMN

Abstract

Wireless Mesh Networks (WMN) consists of mesh routers and mesh clients, where mesh routers have minimal mobility and form the backbone of WMNs. They provide network access for both mesh and conventional clients. Existing Adhoc On Demand Distance Vector(AODV) Protocol was designed to simply yield the shortest path between a given source and its destination. This routing Protocol is not suitable for Wireless Mesh Backbone since it do not consider the impairments of wireless channels. we propose a new routing metric called Expected Transmission Count(ETX) and use this metric instead of the minimum hop count metric to find routes that result in higher throughputs. we will integrate AODV with the ETX metric. We show that ETX metric is superior to the hop count in terms of finding paths with higher throughputs.