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http://dx.doi.org/10.4218/etrij.13.0212.0297

Joint Optimization for Congestion Avoidance in Cognitive Radio WMNs under SINR Model  

Jia, Jie (School of Information Science and Engineering, Northeastern University)
Lin, Qiusi (School of Information Science and Engineering, Northeastern University)
Chen, Jian (School of Information Science and Engineering, Northeastern University)
Wang, Xingwei (School of Information Science and Engineering, Northeastern University)
Publication Information
ETRI Journal / v.35, no.3, 2013 , pp. 550-553 More about this Journal
Abstract
Due to limited spectrum resources and differences in link loads, network congestion is one of the key issues in cognitive radio wireless mesh networks. In this letter, a congestion avoidance model with power control, channel allocation, and routing under the signal-to-interference-and-noise ratio is presented. As a contribution, a nested optimization scheme combined with a genetic algorithm and linear programming solver is proposed. Extensive simulation results are presented to demonstrate the effectiveness of our algorithm.
Keywords
Congestion avoidance; channel assignment; power control; SINR; genetic algorithm;
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