Multichannel opportunistic carrier sensing for stable channel access control in cognitive radio systems

Amir Leshem, Ephraim Zehavi, Yoav Yaffe

Research output: Contribution to journalArticlepeer-review

114 Scopus citations

Abstract

In this paper we propose to use the well known game theoretic Gale-Shapley stable marriage theorem from game theory as a basis for spectrum allocation in cognitive radio networks. We analyze the performance of the proposed solution and provide tight lower and upper bounds on both the stable allocation and the optimal allocation performance. Then we present a novel opportunistic multichannel medium access control technique that achieves stable allocation within a single CSMA contention window. We discuss practical implementation issues and put forward two other varieties of the algorithm which have lower implementation complexity. Finally, we provide simulated examples.

Original languageEnglish
Article number6117764
Pages (from-to)82-95
Number of pages14
JournalIEEE Journal on Selected Areas in Communications
Volume30
Issue number1
DOIs
StatePublished - Jan 2012

Keywords

  • Gale-Shapley theorem
  • Stable matching
  • cognitive radio
  • multi-channel carrier sensing
  • opportunistic carrier sensing

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