Performance Analysis of Cooperative Sensing in Cognitive Radio Networks

Cheng-yu WU  Chen HE  Ling-ge JIANG  Yun-fei CHEN  

IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences   Vol.E97-A    No.7    pp.1646-1649
Publication Date: 2014/07/01
Online ISSN: 1745-1337
DOI: 10.1587/transfun.E97.A.1646
Type of Manuscript: LETTER
Category: Mobile Information Network and Personal Communications
cognitive radio,  cooperative sensing,  sensing errors,  k-out-of-n,  

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In this letter, the k-out-of-n rule for cooperative sensing is considered. For a given n, we derive the optimal value of k that minimizes the total sensing error probability subject to the sensing accuracy, considering both the effective of sensing errors and the primary activities. According to the optimal k, we analyze the performance and compare with other schemes, which illustrate the effectiveness of the proposed scheme.