Distributed Channel Selection in CRAHNs with Heterogeneous Spectrum Opportunities: A Local Congestion Game Approach

Yuhua XU
Qihui WU
Jinlong WANG
Neng MIN

IEICE TRANSACTIONS on Communications   Vol.E95-B    No.3    pp.991-994
Publication Date: 2012/03/01
Online ISSN: 1745-1345
DOI: 10.1587/transcom.E95.B.991
Print ISSN: 0916-8516
Type of Manuscript: LETTER
Category: Network
cognitive radio ad hoc networks,  distributed channel selection,  potential game,  local congestion game,  best response dynamic,  

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This letter investigates the problem of distributed channel selection in cognitive radio ad hoc networks (CRAHNs) with heterogeneous spectrum opportunities. Firstly, we formulate this problem as a local congestion game, which is proved to be an exact potential game. Then, we propose a spatial best response dynamic (SBRD) to rapidly achieve Nash equilibrium via local information exchange. Moreover, the potential function of the game reflects the network collision level and can be used to achieve higher throughput.