CBLA:Cluster-Based Load-Aware Channel Assignment for Multi-Channel Wireless Mesh Networks
Cheng Xu · Dianzi xuebao · 2010
The capacity of wireless mesh networks can be significantly improved by multi-channel communications;channel assignment is an important issue in multi-channel Mesh network.We propose a novel distributed channel assignment algorithm CBLA(Cluster-Based Load-Aware),which takes advantage of both static and dynamic channel assignment approaches.CBLA uses clustering to reduce the complexity of channel assignment problem,estimates the traffic load by low-overhead statistic information of local packets.Adaptive dynamic channel assignment results in a better link load equilibrium.We also introduce a new routing metric,which combines hop count,channel diversity and cluster information together.A detailed performance evaluation shows that CBLA significantly improves aggregated throughput and reduces average packet delay.