Jointly Channel Assignment and Power Allocation Algorithm Based on Utility Optimization for Wireless Mesh Networks
Huang Xin①② Feng Sui-li① Ke Feng① Zhuang Hong-cheng③
①(School of Electronic and Information Engineering, South China University of Technology, Guangzhou 510640, China)
②(School of Physics and Telecommunication Engineering, South China Normal University, Guangzhou 510006, China)
③(Pre-research Dept. Huawei Technologies CO. Ltd, Shenzhen 518100, China)
Abstract：A power-interference pricing model is presented using pricing scheme based on utility optimization. Then, a distributed jointly channel assignment and power allocation algorithm is proposed for multi-channel wireless mesh networks. Each node adjusts its power price according to the amount of power expended, and adjusts its interference price according to the interference suffered. To maximize the network utility, the channel assignment and power allocation are adjusted through power prices and interference prices. Simulation results show that the proposed algorithm can converge to approximate optimal solution rapidly and smoothly. The influence of the available channels, radios and power equipped on each node is also simulated, which is a reference for the network configuration.
2011, Vol. 33 
