基于目标对象的最佳中继协作频谱感知方案  

Target based cooperative spectrum sensing scheme with best relay

作　　者：李美玲[1,2] 袁超伟[2] 赵伟[2] 韩曦[2] 

机构地区：[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

出　　处：《吉林大学学报（工学版）》2013年第4期1098-1103,共6页Journal of Jilin University:Engineering and Technology Edition

基　　金：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)

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。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.

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 

分 类 号：TN911[电子电信—通信与信息系统]