【摘 要】
：
Collaborative spectrum sensing can effectively improve the sensing performance in cognitive radio networks.However,the decision results significantly depend on the reliability of local detection.Signa
【机 构】
：
College of Information and Communication Engineering,Harbin Engineering University
【出 处】
：
2016年第十二届无线通信、网络技术与移动计算国际学术会议(WICOM2016)
论文部分内容阅读
Collaborative spectrum sensing can effectively improve the sensing performance in cognitive radio networks.However,the decision results significantly depend on the reliability of local detection.Signal-to-noise ratios differ-ence among secondary users leads to disparate reliability of local sensing,moreover,the nodes with low SNR se-verely degrade the sensing performance of cognitive sys-tem.
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