广义衰落信道下协作频谱感知性能分析
Performance Analysis of Cooperative Spectrum Sensing over Generalized Fading Channels
对于由多个认知节点和一个融合中心构成的协作认知无线电网络，分析其频谱感知性能。引入一个平均信噪比之对数比概念。该概念将认知节点到融合中心链路的平均信噪比与一类用户到认知用户链路的平均信噪比建立联系。感知增益与编码增益能够用来刻画高信噪比情况下的认知无线电网络性能。在假定融合中心采用N中取K的判决规则下，推导出一些感知增益与编码增益确切表达式。基于这些表达式，可以确定出优化认知无线电网络性能方式。
his paper analyzes the spectrum-sensing performance of a cooperative cognitive radio (CR) network consisting of a number of CR nodes and a fusion center (FC). A novel notation of "log-average-SNR ratio" is introduced in order to relate the average SNR of the CR-node-FC link and that of the primary-user-CR-node link. The sensing gain and the coding gain can be used to characterize the CR network performance at the high SNR region. Exact expressions for these two parameters are derived. Based on these expressions, ways to optimize the performance of the CR network can be determined.
岳殿武、刘重明、王谦
通信无线通信
编码增益，认知无线电，平均信噪比之对数比，误检概率，感知增益，频谱感知
oding gain cognitive radio log-average-SNR ratio missing-detection probability sensing gain spectrum sensing.
岳殿武,刘重明,王谦.广义衰落信道下协作频谱感知性能分析[EB/OL].(2014-06-05)[2025-08-02].http://www.paper.edu.cn/releasepaper/content/201406-81.点此复制
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