ETRI Journal

Electronics and Telecommunications Research Institute (한국전자통신연구원)
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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)
  • Received : 2012.07.03
  • Accepted : 2012.11.06
  • Published : 2013.06.01
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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.

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References

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