Detection time analysis for the multiple-user cooperative spectrum sensing scheme in cognitive radio networks |
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Authors: | Jia Zhu BaoYu Zheng YuLong Zou |
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Affiliation: | ZHU Jia,ZHENG BaoYu & ZOU YuLong Institute of Signal Processing , Transmission,Nanjing University of Posts , Telecomm,Nanjing 210003,China |
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Abstract: | In this paper, a novel multiple-user cooperative spectrum sensing (MCSS) scheme is proposed to achieve the spatial diversity gains for cognitive radio (CR) networks, where only the best relay, selected among all the candidate relays in accordance with the quality of channel conditions, is utilized to cooperatively detect the primary user. Closed-form expressions of detection time for the traditional non-cooperative and the proposed MCSS schemes are derived over Rayleigh fading channels. In addition, numeric... |
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Keywords: | cognitive radio networks multiple-user cooperation spectrum sensing cooperative diversity |
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