A measurement protocol for channel assignment based topology control on multi-radio wireless mesh networks

Due to widespread use and limited radio spectrum of 802.11 based networks, interference between collocated networks is an important problem. In this paper we expand our prior work on the multiagent system for channel assignment based topology control on multi-radio wireless mesh networks. The aim of the system is to dynamically reduce the overall interference and increase the aggregate capacity of the network. To realise this goal agents require information about radio spectrum utilisation, thus we propose a distributed measurement protocol. To obtain good spectrum utilisation the measurements focus on empirical issues such as contention interference and the use of partially overlapping channels. The simulation results obtained for realistic scenarios of MR-WMN node densities and topologies show performance comparable with the current state of the art in addition to stability, flexibility and extensibility, features achieved by the multiagent system implementation.