通信学报Issue(1)：105-110,120,7.DOI:10.3969/j.issn.1000-436x.2013.01.012
基于广义特征值的合作频谱感知方法
Cooperative spectrum sensing detector based on generalized eigenvalue
摘要
Abstract
The available eigenvalue based cooperative spectrum sensing detectors require that the primary signals among sensing nodes were correlated. A maximum generalized eigenvalue based cooperative spectrum sensing detector was proposed. The proposed detector exploited the received signals from the previous sensing durations without primary user. The maximum generalized eigenvalue between the sample covariance matrices from current and previous sensing dura-tions was taken as test-statistic to implement spectrum sensing. No prior knowledge of primary signal and noise power was needed in the proposed detector. The proposed detector still has high detection performance while the primary signals among sensing nodes are uncorrelated, although the available eigenvalue based detectors fail. Finally, the validity of the detector is proved by simulations.关键词
认知无线电/合作频谱感知/采样协方差矩阵/广义特征值Key words
cognitive radio/cooperative spectrum sensing/sample covariance matrix/generalized eigenvalue分类
信息技术与安全科学引用本文复制引用
金明,李有明,高洋..基于广义特征值的合作频谱感知方法[J].通信学报,2013,(1):105-110,120,7.基金项目
国家自然科学基金资助项目(60772126,61071119) （60772126,61071119）
浙江省自然科学基金资助项目(Y1110657, Y1091155) （Y1110657, Y1091155）
宁波市自然科学基金基金资助项目(2011A610184) （2011A610184）
浙江省重点创新团队基金资助项目(2010R50009) （2010R50009）
宁波市科技创新团队基金资助项目(2011B81002) Foundation Items：The National Natural Science Foundation of China (60772126,61071119) （2011B81002）
The Natural Science Foundation of Zhejiang Province(Y1110657, Y1091155) （Y1110657, Y1091155）
The Natural Science Foundation of Ningbo Municipality (2011A610184) （2011A610184）
The Scientific and Technological Innovations Teams Project of Zhejiang Province (2010R50009) （2010R50009）
The Scientific and Technological Innovations Teams Project of Ningbo (2011B81002) （2011B81002）
