A Censoring Cooperative Spectrum Sensing Scheme Based on Stochastic Resonance in Cognitive Radio

被引:0
作者
Lin, Yingpei [1 ]
He, Chen [1 ]
Jiang, Lingge [1 ]
He, Di [1 ]
机构
[1] Shanghai Jiao Tong Univ, Dept Elect Engn, Shanghai 200030, Peoples R China
来源
2011 IEEE INTERNATIONAL CONFERENCE ON COMMUNICATIONS (ICC) | 2011年
关键词
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中图分类号
TM [电工技术]; TN [电子技术、通信技术];
学科分类号
0808 ; 0809 ;
摘要
A new censoring cooperative spectrum sensing scheme in cognitive radio (CR) network is proposed in this paper, which is based on stochastic resonance (SR) technique and optimal censoring interval. The selection strategy for the optimal censoring interval is derived. The observations of the cooperative secondary users (SUs) whose statistics fall into the censoring interval are processed by SR system. Theoretical analyses and simulation results show that the proposed cooperative spectrum sensing scheme has the same detection performance and lower computational complexity compared with the method that each cooperative SU performs spectrum sensing using SR-based energy detection, and its detection performance is superior than that of the conventional method that each cooperative SU performs spectrum sensing using energy detection.
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页数:5
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