Performance Evaluation of a Self-Organising Scheme for Multi-Radio Wireless Mesh Networks

Multi-radio wireless mesh networks (MR-WMN) can substantially increase the aggregate capacity of the wireless mesh networks (WMN) if the channels are assigned to the nodes in an intelligent way so that the overall interference is limited. We propose a generic self-organisation algorithm that addresses the two key challenges of scalability and stability in a WMN. The basic approach is that of a distributed, light-weight, co-operative multiagent system that guarantees scalability. The usefulness of our algorithm is exhibited by the performance evaluation results that are presented for different MR-WMN node densities and typical topologies. In addition, our work complements the Task Group 802.11s extended service set (ESS) mesh networking project work that is in progress.