Source-Based Jamming for Physical-Layer Security on Untrusted Full-Duplex Relay

被引：26

作者：

Atapattu, Saman ^{[1
]}

Ross, Nathan ^{[2
]}

Jing, Yindi ^{[3
]}

Preniaratne, Malin ^{[4
]}

机构：

[1] Univ Melbourne, Dept Elect & Elect Engn, Parkville, Vic 3010, Australia

[2] Univ Melbourne, Sch Math & Stat, Parkville, Vic 3010, Australia

[3] Univ Alberta, Dept Elect & Comp Engn, Edmonton, AB T6G 1H9, Canada

[4] Monash Univ, Dept Elect & Comp Syst Engn, Clayton, Vic 3800, Australia

来源：

IEEE COMMUNICATIONS LETTERS | 2019年 / 23卷 / 05期

基金：

澳大利亚研究理事会;

关键词：

Full-duplex; optimal power allocation; physical layer security; source jamming; untrusted relay; ALLOCATION;

D O I：

10.1109/LCOMM.2019.2907627

中图分类号：

TN [电子技术、通信技术];

学科分类号：

0809 ;

摘要：

We address the problem of secure wireless communications over an untrusted full-duplex (FD) relay based on the source jamming scheme. The optimal power allocation between the confidential signal and the jamming signal is derived to maximize the secrecy rate. Then, the corresponding secrecy outage probability (SOP) and the average secrecy rate (ASR) are analyzed. A tight approximation and an asymptotic result are further obtained for the single-antenna destination case both in simple forms. The large-antenna destination case is also analyzed rigorously. Further discussion reveals that transmit-power dependent self-interference has significant negative impact on the secrecy performance.

引用

页码：842 / 846

页数：5

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