Nakagami-m衰落信道下存在窃听攻击的认知中继网络安全性与可靠性折中方案  

Security-reliability tradeoff scheme for cognitive relay networks with eavesdropping attack over Nakagami-m fading channels

作　　者：王兴鹏 许晓荣[1] 胡安迪 冯维 WANG Xingpeng;XU Xiaorong;HU Andi;FENG Wei(School of Communication Engineering,Hangzhou Dianzi University,Hangzhou 310018,China)

机构地区：[1]杭州电子科技大学通信工程学院,浙江杭州310018

出　　处：《电信科学》2018年第12期24-32,共9页Telecommunications Science

基　　金：浙江省自然科学基金一般项目"绿色无线携能网络中继选择与资源调度策略研究";2017年度杭州电子科技大学"优秀骨干教师支持计划"人才项目;杭州电子科技大学"电子科学与技术"浙江省一流学科A类开放基金项目(No.GK178800207001/024);浙江省科协青年科技人才培育工程资助项目(No.2016YCGC009)~~

摘　　要：研究了由源节点、目的节点和多个中继节点组成的认知解码转发(DF)中继网络中物理层安全与可靠性折中方案。该方案以保障最大安全主链路信道容量为目标,提出了存在窃听攻击情况下的最佳中继选择方案。以传统直接传输方案作为基准,给出了安全性与可靠性折中性能(SRT)。数值仿真结果表明,所提方案的SRT性能优于传统直接传输方案的SRT,并且其性能随着中继数量和在一定中继数下Nakagami信道衰落因子m的增加而显著改善。Physical layer security (PLS)and reliability tradeoff scheme in a cognitive decode-and-forward (DF)relay network consisting of one source,one destination and multiple relays was investigated.A best relay selection scheme (BRS)against eavesdropping attack was proposed,in order to guarantee the maximum secure main link channel capacity.Traditional direct transmission scheme was taken into consideration as a benchmark.In addition,security-reliability tradeoff (SRT)performance was presented.Numerical results show that the proposed SRT scheme strictly outperforms traditional direct transmissions in terms of SRT performance.SRT performance can be enhanced obviously with the increasing of relays and Nakagami channel fading factor m for a given numbers of relays.

关 键 词：认知中继网络 NAKAGAMI-M衰落信道 窃听攻击 安全性与可靠性折中 最佳中继选择 

分 类 号：TP393[自动化与计算机技术—计算机应用技术]