华中科技大学学报（自然科学版）2018，Vol.46Issue(2)：112-117,6.DOI:10.13245/j.hust.180221
窃听协作网络下联合中继和目的节点选择方案
Joint relay and destination selection scheme in eavesdropping cooperative network
摘要
Abstract
To improve the system security in eavesdropping network,an optimal relay-destination selection scheme based on power allocation was proposed.This scheme aimed at the maximum secrecy transmission rate,and considered the quality of the user′s main channels and the eavesdropper channels comprehensively.Firstly,the optimal power allocation scheme for any link was given when the total transmit power was limited.On the basis of this,the optimal node selection scheme was designed and the approximate expression of the system secrecy outage probability was deduced at high SNR(signal-to-noise ratio) regime.The simulation results demonstrate that the proposed scheme significantly reduces the secrecy outage probability and has higher safety performance compared to the traditional MAX-MIN selection scheme.关键词
协作通信/译码转发/功率分配/物理层安全/安全中断概率Key words
cooperative communication/decode-and-forward/power allocation/physical layer security/secrecy outage probability分类
信息技术与安全科学引用本文复制引用
薛建彬,朱恒,马志程..窃听协作网络下联合中继和目的节点选择方案[J].华中科技大学学报（自然科学版）,2018,46(2):112-117,6.基金项目
国家自然科学基金资助项目(61461026) （61461026）
东南大学移动通信国家重点实验室开放研究基金资助课题(2014D13). （2014D13）
