吉林大学学报(工学版) ›› 2013, Vol. 43 ›› Issue (04): 1098-1103.doi: 10.7964/jdxbgxb201304040

• 论文 • 上一篇    下一篇

基于目标对象的最佳中继协作频谱感知方案

李美玲1,2, 袁超伟2, 赵伟2, 韩曦2   

  1. 1. 太原科技大学 电子信息工程学院,太原 030024;
    2. 北京邮电大学 信息与通信工程学院,北京 100876
  • 收稿日期:2012-04-02 出版日期:2013-07-01 发布日期:2013-07-01
  • 作者简介:李美玲(1982-),女,博士研究生,讲师.研究方向:未来移动通信关键技术.E-mail:meiling_li@126.com
  • 基金资助:

    国家自然科学基金项目(60872149,60672132,61272262,61073142,41140026);山西省自然科学基金项目(2011011014-1);太原科技大学博士科研项目(20122032).

Target based cooperative spectrum sensing scheme with best relay

LI Mei-ling1,2, YUAN Chao-wei2, ZHAO Wei2, HAN Xi2   

  1. 1. School of Electronics and Information Engineering, Taiyuan University of Science and Technology, Taiyuan 030024, China;
    2. School of Information and Communication Engineering, Beijing University of Posts and Telecommunications, Beijing 100876, China
  • Received:2012-04-02 Online:2013-07-01 Published:2013-07-01

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摘要：

提出了一种基于目标对象的最佳中继协作频谱感知方案(Pe-BRCS),通过最小化报告信道上的错误传输概率为目标选择最佳中继,以提高感知性能;为了降低计算复杂度,进一步提出了简化的最佳中继,协作频谱感知方案(simplified_BRCS)。仿真结果表明:相比传统SINR-BRCS方案,Pe_BRCS方案有效降低了报告信道上的错误传输概率,可以在增加较少计算复杂度的条件下提高感知性能;simplified_BRCS方案可以在不增加复杂度的情况下很好地近似Pe_BRCS方案。

关键词: 通信技术, 认知无线电, 协作频谱感知, 中继协作, 报告错误概率

Abstract:

Target based Cooperative Spectrum Sensing (CSS) scheme with best relay (Pe-BRCS) was proposed. In this scheme the best relay was selected by minimizing the reporting error probability to improve the sensing performance. Furthermore, to reduce the computational complexity, a simplified CSS scheme with best relay (simplified-BRCS) was proposed. Results of numerical simulation show that, comparing with traditional SINR-BRCS, the reduced reporting error probability can be achieved effectively by the proposed Pe-BRCS with little computational complexity. The performance obtained by the simplified-BRCS scheme is similar to that of Pe-BRCS but without increase in computational complexity.

Key words: communication, cognitive radio, cooperative spectrum sensing, relay cooperation, reporting error probability

中图分类号: 

  • TN911

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