A Connected Dominating Set Based Fast Decentralized Cooperative Sensing Algorithm for Cognitive Radio Networks

Qihui WU
Yuhua XU
Zhiyong DU
Jinlong WANG

IEICE TRANSACTIONS on Communications   Vol.E95-B    No.4    pp.1291-1294
Publication Date: 2012/04/01
Online ISSN: 1745-1345
DOI: 10.1587/transcom.E95.B.1291
Print ISSN: 0916-8516
Type of Manuscript: Special Section LETTER (Special Section on Cognitive Radio and Heterogeneous Wireless Networks in Conjunction with Main Topics of CrownCom2011)
cognitive radio networks,  decentralized cooperative sensing,  distributed consensus,  connected dominating set,  

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This letter proposes a novel connected dominanting set based decentralized cooperative spectrum sensing algorithm for cognitive radio networks. It is analytically shown that the proposed algorithm distributively converges to the average consensus as that of traditional distributed consensus algorithm, while reducing both the convergence time and message complexity significantly.