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Optimization Models of Multi-Channel Assignment in Multi-Radio Wireless Mesh Networks

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3 Author(s)
Li Ma ; Dept. of Electron. & Inf. Eng., HuaZhong Univ. of Sci. & Technol., Wuhan ; Guang-xi Zhu ; Bo-Yun Yin

Wireless mesh networks with multi-channel multi- radio availability are attracting more and more attention from the research community because of its performance improvement and relative low complexity. In this paper, we address the channel assignment problem for multi-channel multi-radio wireless mesh networks. We focus on heterogeneous static wireless mesh networks where multiple non-overlapping channels are available for each wireless radio. Our objective is to find the optimal channel assignment which maximizes the number of bidirectional links that can be activated simultaneously, subject to the interference constraints. We present an applied integer linear programming model for solving the fixed channel assignment problem with multiple radios. We then use this model to study the impact of channel and radio constrains.

Published in:

Wireless Communications, Networking and Mobile Computing, 2008. WiCOM '08. 4th International Conference on

Date of Conference:

12-14 Oct. 2008