%0 Journal Article
%T 多天线协作频谱感知性能分析<br>Performance analysis on cooperative spectrum sensing with multiple antennas
%A 陈永红
%A 郭莉莉
%A 张士兵
%J 南京邮电大学学报（自然科学版）
%D 2015
%X 频谱感知性能的优劣直接影响认知通信系统的性能。文中分析了多天线协作能量检测频谱感知在加性高斯（AWGN）信道和κ-μ衰落信道下的性能，给出了相应的ROC曲线，总的检测错误概率与改进的能量检测器参数p，判决门限λ和信噪比（SNR）之间的变化关系。仿真结果表明，改进的能量检测器可以通过设置最优的参数p提高系统的检测性能，同时也验证了多天线协作对提高频谱检测性能的有效性。<br>The spectrum sensing affects the performance of cognitive communication system directly. Performances of cooperative spectrum sensing based on improved energy detector with multiple antennas are analyzed in the additive white Gaussian noise(AWGN) channel and fading channel. The receiver operating characteristic(ROC) curves and relationships among the total detection error probability, detector parameter p, decision threshold λ,as well as signal noise ratio(SNR) are given. Simulation results show that setting the optimal parameters p can improve the spectrum detection performance of the system. It verifies that the multi-antenna collaboration is proved to be effective for improving the spectrum detection performance
%K 协作频谱感知 改进的能量检测器 性能分析 衰落信道 多天线&lt
%K br&gt
%K cooperative spectrum sensing improved energy detector performance analysis κ-μ fading channel multiple antennas
%U http://nyzr.njupt.edu.cn/ch/reader/view_abstract.aspx?file_no=201505006&flag=1