An Enhanced Cooperative Spectrum Sensing Scheme Based on Evidence Theory and Reliability Source Evaluation in Cognitive Radio Context

被引：60

作者：

Nguyen-Thanh, Nhan ^{[1
]}

Koo, Insoo ^{[1
]}

机构：

[1] Univ Ulsan, Ulsan, South Korea

来源：

IEEE COMMUNICATIONS LETTERS | 2009年 / 13卷 / 07期

基金：

新加坡国家研究基金会;

关键词：

Cognitive radio; cooperative spectrum sensing; data fusion; Dempter-Shafer theory of evidence; source reliability evaluation;

D O I：

10.1109/LCOMM.2009.090043

中图分类号：

TN [电子技术、通信技术];

学科分类号：

0809 ;

摘要：

This letter proposes an enhanced scheme for cooperative spectrum sensing which utilizes the signal to noise ratios to evaluate the degree of reliability of each local spectrum sensing terminal on a distributed Cognitive Radio network. The terminals' reliability weight is applied to adjust its sensing data more accuratly before making fusion by Dempter-Shafer theory of evidence. Simulation results show that significant improvement of the cooperative spectrum sensing gain is achieved by our scheme.

引用

页码：492 / 494

页数：3

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