认知无线电协作频谱感知技术综述  

A Survey on Cooperative Spectrum Sensing in Cognitive Radio

作　　者：梁红玉 陈宏滨[1,2] 赵峰[1] 

机构地区：[1]桂林电子科技大学认知无线电与信息处理省部共建教育部重点实验室,广西桂林541004 [2]东南大学移动通信国家重点实验室,江苏南京210096

出　　处：《广西通信技术》2011年第2期38-44,共7页Guangxi Communication Technology

基　　金：国家自然科学基金资助项目(60872022);东南大学移动通信国家重点实验室开放研究基金资助项目(2010D14);广西教育厅科研项目(201012MS080)

摘　　要：频谱感知是实现认知无线电功能的前提条件,也是认知无线电领域的一个研究热点。近年来人们提出了很多种频谱感知方法,尤其协作感知技术日益受到关注。综述了协作频谱感知技术的最新研究进展,先描述典型的认知无线电协作频谱感知模型,然后讨论了协作感知中信息融合及性能分析等关键问题,最后指出了协作感知的研究挑战和发展趋势。Spectrum sensing is a prerequisite for realizing the functionalities of cognitive radio and becomes a hot hot research topic in the field of cognitive radio.Many spectrum sensing algorithms were proposed in recent years while the cooperative spectrum sensing technique attracted more and more attention.Summarizes some recent research progress in cooperative spectrum sensing.Firstly,the typical cooperative spectrum sensing models are described.Then,the key issues of information fusion and performance analysis in cooperative spectrum sensing are discussed.Finally,the research challenges and trends are pointed out.

关 键 词：认知无线电 协作频谱感知 信息融合 检测性能 

分 类 号：TN91[电子电信—通信与信息系统]