Optimal Reporting Order for Superposition Cooperative Spectrum Sensing in Cognitive Radio Networks

Hiep VU-VAN  Insoo KOO  

IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences   Vol.E98-A   No.6   pp.1346-1350
Publication Date: 2015/06/01
Online ISSN: 1745-1337
DOI: 10.1587/transfun.E98.A.1346
Type of Manuscript: LETTER
Category: Mobile Information Network and Personal Communications
cognitive radio,  superposition cooperative spectrum sensing,  reporting order,  sensing performance,  

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In cognitive radio (CR), superposition cooperative spectrum sensing (SPCSS) is able to offer a much improved sensing reliability compared to individual sensing. Because of the differences in sensing channel condition, the reporting order for each cognitive radio user (CU) will highly affect the sensing performance of the network. In this paper, we propose an algorithm to assign the best reporting order to each CU in order to maximize sensing performance under SPCSS. The numerical results show that the proposed scheme can obtain the same performance as the optimal scheme.