Full-Duplex Relay for Enhancing Physical Layer Security in Multi-Hop Relaying Systems

被引：108

作者：

Lee, Jong-Ho ^{[1
]}

机构：

[1] Gachon Univ, Dept Elect Engn, Songnam 461701, South Korea

来源：

IEEE COMMUNICATIONS LETTERS | 2015年 / 19卷 / 04期

基金：

新加坡国家研究基金会;

关键词：

Physical layer security; relay networks; full-duplex relay; jamming; secrecy rate; SELF-INTERFERENCE; WIRELESS; CHANNEL;

D O I：

10.1109/LCOMM.2015.2401551

中图分类号：

TN [电子技术、通信技术];

学科分类号：

0809 ;

摘要：

In this letter, we consider secure communications in multi-hop relaying systems, where full-duplex relays (FDRs) operate to enhance wireless physical layer security. Each FDR is designed to transmit jamming signals to the eavesdropper when it receives information signals from the previous adjacent node. The achievable secrecy rate with the proposed decode-and-forward (DF) FDRs are analyzed with a total transmit power constraint. The transmit power allocation problem is solved by using the geometric programming (GP) method. Numerical results present that the proposed FDRs significantly enhance the secrecy rate compared to the conventional half-duplex relays (HDRs).

引用

页码：525 / 528

页数：4

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