Security Enhancement for Multiple Multi-Antenna Relaying Networks

被引：0
作者：
Yang, Yijun [1 ]
Wang, Jinlong [1 ]
Huang, Yuzhen [1 ,2 ]
Chen, Jin [1 ]
Jiao, Yutao [3 ]
机构：
[1] PLA Army Engn Univ, Coll Commun Engn, Nanjing 210007, Jiangsu, Peoples R China
[2] Beijing Univ Posts & Telecommun, Sch Informat & Commun, Beijing, Peoples R China
[3] Nanyang Technol Univ, Sch Comp Sci & Engn, Singapore, Singapore
来源：
2017 IEEE GLOBECOM WORKSHOPS (GC WKSHPS) | 2017年
基金：
中国博士后科学基金; 美国国家科学基金会;
关键词：
PHYSICAL LAYER SECURITY; FRIENDLY JAMMER;
D O I：
暂无
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
In this paper, we investigate the secrecy performance of the multi-antenna relaying networks over Rayleigh fading channels, by taking the reliability of the first link spanning the transmitter to the relays into consideration. To improve the secrecy performance, two secure transmission strategies are designed at relays, namely, 1) Maximal ratio combining/Transmitter antenna selection (MRC/TAS) and 2) MRC/Maximal ratio transmission (MRC/MRT), assisted by a friendly jammer. Specifically, in order to present the advantages of the two proposed schemes, we derive the exact closed-form expressions of the outage probability (OP) and intercept probability (IP) to evaluate the security-reliability tradeoff (SRT) of the considered system, respectively. From our theoretical analysis as well as simulation results, we find that a) our proposed schemes outperform the conventional scheme with no cooperative jammer (CJ), and b) the MRT scheme is superior to the TAS one conditioned on the same set of system parameters.
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页数：6
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