A Modified SPRT based Cooperative Spectrum Sensing Scheme in Cognitive Radio

摘要：

In this paper, a modified sequential probability ratio test (SPRT) scheme, namely sequential energy detection (SED), is proposed for cooperative spectrum sensing to reduce the average number of required samples. In the scheme, the data samples are first grouped into data blocks and the sequential probability ratio test (SPRT) use the energies of the data blocks as the statistics variables. The resulting detection rule exhibits simplicity in implementation and in analysis and avoid the deterministic knowledge of primary signals. The detection performance in terms of average sample number (ASN) is evaluated theoretically. Numerical results are provided to verify the theoretical analysis.

关键词： Cognitive radio Cooperative spectrum sensing Energy detector Sequential probability ratio test

作者: Xiong Zhang Zhengding Qiu Dazhong Mu

作者单位: Institute of Information Science, Beijing Jiaotong University, Beijing, 100044, P.R.China College of Institute of Information Science, Beijing Jiaotong University, Beijing, 100044, P.R.China

会议类型: 国际会议

会议名称: 2010 IEEE 10th International Conference on Signal Processing(第十届信号处理国际会议 ICSP 2010)

会议地点: 北京

会议语种:英文

页码: 1512-1515

在线出版日期: 2010-08-24（万方平台首次上网日期，不代表论文的发表时间）