电讯技术2016，Vol.56Issue(4)：353-359,7.DOI:10.3969/j.issn.1001-893x.2016.04.001
基于DOA估计的认知无线网络频谱感知
Spectrum Sensing Based on DOA Estimation in Cognitive Radio Networks
摘要
Abstract
In cognitive radio technology,the performance of spectrum sensing directly affects the perform-ance of cognitive communication system. According to this feature,a spectrum sensing model of primary us-er( PU) based on direction of arrival( DOA) estimation in the cognitive radio networks is proposed,that is, the system model of multiple primary users( PUs) multiple secondary users( SUs) and single primary user multiple secondary users. Then,the sensing performance of the two sensing models based on the Multiple Signal Classification( MUSIC) algorithm is analyzed,including false alarm probability,miss detection proba-bility,the minimum total false probability,sensing complexity,and the expression of the closed-form solu-tion is obtained. Finally,algorithm simulations are carried out under various sensing models. The simula-tion results show that the parameters mainly affect the false alarm probability,but the miss detection proba-bility is almost unaffected. The effectiveness of this method is verified.关键词
认知无线电网络/频谱感知/波达方向估计/感知模型Key words
cognitive radio networks/spectrum sensing/direction of arrival estimation/sensing model分类
信息技术与安全科学引用本文复制引用
任肖丽,高飞飞,王骥,刘双印..基于DOA估计的认知无线网络频谱感知[J].电讯技术,2016,56(4):353-359,7.基金项目
国家自然科学基金资助项目（61471133)；广东省自然科学基金资助项目（2015AC0313617)；广东省科技计划项目（2013B090500127，2013B021600014，2015A070709015，2015A020209171)；广东海洋大学创新强校工程项目（GDOU2013050232，GDOU2014050228) Foundation ItemThe National Natural Science Foundation of China（No.61471133)；The Natural Science Foundation of Guangdong Province （2015A030313617)； Guangdong Science and Technology Plan Project （2013B090500127，2013B021600014，2015A070709015，2015A020209171)；The Project of Enhancing School with Innovation of Guangdong Ocean University （GDOU2013050232，GDOU2014050228) （）
