Secrecy Analysis of Amplify-and-Forward Relay Networks with Beamforming

被引：2
作者：
Chen, Pu [1 ]
Ouyang, Jian [1 ]
Zhu, Wei-Ping [1 ,2 ]
机构：
[1] Nanjing Univ Posts & Telecommun, Coll Telecommun & Informat Engn, Nanjing, Jiangsu, Peoples R China
[2] Concordia Univ, Dept Elect & Comp Engn, Montreal, PQ, Canada
来源：
KSII TRANSACTIONS ON INTERNET AND INFORMATION SYSTEMS | 2016年 / 10卷 / 10期
基金：
中国博士后科学基金; 中国国家自然科学基金;
关键词：
Physical layer security; relay network; secrecy outage probability; average secrecy rate; beamforming; RAYLEIGH FADING CHANNELS; OPPORTUNISTIC COOPERATION; PERFORMANCE ANALYSIS; OUTAGE PROBABILITY; INTERFERENCE; SELECTION; EAVESDROPPERS; SECURITY;
D O I：
10.3837/tiis.2016.10.022
中图分类号：
TP [自动化技术、计算机技术];
学科分类号：
0812 ;
摘要：
This paper analyzes the secrecy performance of an amplify-and-forward (AF) relay network, where a multi-antenna eavesdropper attempts to overhear the transmitted message from a multi-antenna source to a multi-antenna destination with a single antenna relay. Firstly, we derive the approximate analytical expressions for the secrecy outage probability (SOP) and average secrecy rate (ASR) of the relay network. Then, asymptotic expressions of SOP and ASR at high main-to-eavesdropper ratio (MER) are also provided to reveal the diversity gain of the secure communication. Finally, numerical results are given to verify the theoretical analysis and show the effect of the number of antennas in the considered relay network.
引用
收藏
页码：5049 / 5062
页数：14
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