A cooperative double-threshold energy detection algorithm in cognitive radio systems

Authors:
Jinbo Wu;Tao Luo;Jianfeng Li;Guangxin Yue
Affiliations:
School of Information and Communication Engineering, Beijing University of Posts and Telecommunications, Beijing, P.R. China;School of Information and Communication Engineering, Beijing University of Posts and Telecommunications, Beijing, P.R. China;School of Information and Communication Engineering, Beijing University of Posts and Telecommunications, Beijing, P.R. China;School of Information and Communication Engineering, Beijing University of Posts and Telecommunications, Beijing, P.R. China
Venue:
WiCOM'09 Proceedings of the 5th International Conference on Wireless communications, networking and mobile computing
Year:
2009

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Abstract

As is well-known, cooperation among cognitive users can improve the accuracy of spectrum detection in cognitive radio systems. In this paper, based on OR-rule, a cooperative double-threshold energy detection algorithm is proposed. Theoretical analysis and simulation results indicate that this strategy can improve the spectrum detection probability significantly.