无线电通信技术Issue(4)：77-80,4.
基于SNR比较的协作频谱感知研究
Cooperative Spectrum Sensing Research Based on SNR Comparison
摘要
Abstract
Spectrum sensing is one of the key technologies in cognitive radio,which improves the utilization ratio of spectrum by discovering available frequency resources. Cooperative spectrum sensing can eliminate the multi-path and shadow effects to a certain extent. A cooperative spectrum sensing algorithm based on SNR comparison is proposed, in which each CR user transmits the local decision result and estimated SNR to the data fusion center,and the CR users with SNRs that match the algorithm are selected for deci-sion fusion. Computer simulation results show that this algorithm increases the probability of detection and reduces the node number in decision fusion.关键词
认知无线电/频谱感知/协作检测/SNR比较Key words
cognitive radio/spectrum sensing/cooperative detection/SNR comparison分类
信息技术与安全科学引用本文复制引用
胡峰,郑紫微,熊欧..基于SNR比较的协作频谱感知研究[J].无线电通信技术,2014,(4):77-80,4.基金项目
国家科技重大专项基金资助项目（2011ZX03002-004-02）；浙江省重点科技创新团队基金资助项目（2012R10009-04）；浙江省杰出青年科学基金资助项目（ R1110416）；教育部高等学校博士学科点专项科研基金资助项目（20113305110002）；宁波市科技创新团队基金资助项目 （）
