摘要
针对传统的基础型频谱感知技术由于阴影和衰落等因素的影响而使认知无线电中单用户的频谱感知性能下降等不足,提出一种多用户带内协同频谱感知算法.仿真结果表明,该算法的频谱感知性能有明显的提高.
According to the shortback the of the effect of shadowing,fading and other factors,the sensing performance of single congnitive radio user decreased using conventional basic spectrum sensing technology.An algorithm of in-band multi-user cooperrative spectrum sensing was provided.The simulation results showed that this algorithm dramatically improves the spectrum sensing performance of cognitive radio system.
出处
《郑州轻工业学院学报（自然科学版）》
CAS
2009年第5期81-83,95,共4页
Journal of Zhengzhou University of Light Industry:Natural Science
关键词
认知无线电
频谱感知
多用户协同
cognitive radio
spectrum detection
multi-user cooperative
