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Telecommunication Systems

, Volume 61, Issue 2, pp 325–335 | Cite as

Optimizing link rate assignment and transmission scheduling in WMN through compatible set generation

  • Yuan LiEmail author
  • Michał Pióro
  • Di Yuan
  • Jinshu Su
Article

Abstract

Radio links in wireless mesh networks (WMN) can select one of several modulation and coding schemes (MCS). A MCS assignment influences links data rates and their mutual interference, and therefore should be optimized. We consider joint optimization of link rate assignment and transmission scheduling in order to maximize the minimal flow in a WMN. One of the main difficulties stems from the requirement that each link has to use only one selected MCS for all its transmissions. This requirement leads to a complicated exact branch-and-price method, which is quite time-consuming for networks of practical size. Thus, we propose an original heuristic based on simulated annealing that utilizes specific characteristics of the problem. The method provides a balance between sub-optimality of the obtained solutions and the running time. The presented method is the main purpose and novelty of the paper. An extensive numerical study illustrates the effectiveness of the proposed approach.

Keywords

Static link rate assignment Branch-and-price Simulated annealing 

Notes

Acknowledgments

This work was supported by the EC Marie Curie Actions project MESH-WISE (FP7-PEOPLE-2012-IAPP-324515) and Excellence Center at Linköping-Lund in Information Technology (ELLIIT). The research of Michał Pióro and Yuan Li was also supported by National Science Centre (Poland) under grant 2011/01/B/ST7/02967 and by Chinese Scholarship Council, respectively. The research of Di Yuan has been supported by European FP7 Marie Curie IOF grant 329313.

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Copyright information

© Springer Science+Business Media New York 2015

Authors and Affiliations

  1. 1.Department of Electrical and Information TechnologyLund UniversityLundSweden
  2. 2.Institute of TelecommunicationsWarsaw University of TechnologyWarsawPoland
  3. 3.Department of Science and TechnologyLinköping UniversityLinköpingSweden
  4. 4.Institute for Systems ResearchUniversity of MarylandCollege ParkUSA
  5. 5.School of ComputerNational University of Defense TechnologyChangshaChina

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