计算机应用研究2017，Vol.34Issue(12)：3767-3770,4.DOI:10.3969/j.issn.1001-3695.2017.12.056
协作认知无线网络中基于功率分配的安全波束成形
Secure beamforming based on power allocation in cooperative cognitive radio networks
摘要
Abstract
In cooperative cognitive radio networks,the confidential primary signal can be eavesdropped by secondary receivers when the secondary user acts as the relay to assist the primary information transmission.In order to solve this problem,this paper proposed a secure beamforming method based on power allocation.First,aiming at maximizing the transmission rate for secondary system,this paper formulated the joint optimization problem for secure beamforming according to arbitrary forwarding beamforming power ratio.Then,it transformed the joint optimization problem into a convex optimization.Finally,it obtained global optimum for secure beamforming by searching forwarding beamforming power ratio in one dimension.Simulation results show that the proposed method can achieve the maximum transmission rate for secondary system while ensuring the security of the primary information.关键词
认知无线网络/功率分配/中继协议/波束成形Key words
cognitive radio network/power allocation/relaying protocol/beamforming分类
信息技术与安全科学引用本文复制引用
董健,石振弘,唐锟,施荣华..协作认知无线网络中基于功率分配的安全波束成形[J].计算机应用研究,2017,34(12):3767-3770,4.基金项目
国家自然科学基金资助项目(61201086) （61201086）
国家公派留学资助项目(201506375060) （201506375060）
广东省科技计划资助项目(2013B090500007) （2013B090500007）
东莞市产学研合作项目(2014509102205) （2014509102205）
