A novel channel assignment scheme for multi-radio multi-channel wireless mesh networks

Authors:
Tao Jing;Hongbin Shi;Yan Huo;Liran Ma;Zhipeng Cai
Affiliations:
School of Electronics and Information Engineering, Beijing JiaoTong University, Beijing, P.R. China;School of Electronics and Information Engineering, Beijing JiaoTong University, Beijing, P.R. China;School of Electronics and Information Engineering, Beijing JiaoTong University, Beijing, P.R. China;Department of Computer Science, Texas Christian University, Fort Worth, TX;Department of Computer Science, Georgia State University, Atlanta, GA
Venue:
WASA'11 Proceedings of the 6th international conference on Wireless algorithms, systems, and applications
Year:
2011

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Abstract

Channel assignment is a key factor that determines the performance of a multi-radio multi-channel wireless mesh network. In this paper, we propose a centralized quasi-static channel assignment scheme that aims at improving the network throughput by jointly addressing two important issues. Specifically, our proposed scheme intelligently selects channels for radios in order to alleviate the congestion of hot spot nodes and balances the load among wireless links. In addition, the channel assignment is done in a centralized fashion so as to achieve the global optimization. Our extensive simulation results demonstrate that the proposed scheme is able to achieve a higher throughput than that of two other widely accepted channel assignment schemes.