Cooperative Jamming and Beamforming in Amplify-and-Forward Relay Systems for Physical-Layer Security

被引：0
|
作者：
Lei, Henan [1 ]
Guo, Li [1 ]
Zhang, Lianwei [1 ]
机构：
[1] Beijing Univ Posts & Telecommun, Key Lab Universal Wireless Commun, Minist Educ, Beijing 100876, Peoples R China
来源：
PROCEEDINGS OF THE 11TH EAI INTERNATIONAL CONFERENCE ON HETEROGENEOUS NETWORKING FOR QUALITY, RELIABILITY, SECURITY AND ROBUSTNESS | 2015年
关键词：
D O I：
10.4108/eai.19-8-2015.2261538
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 propose a hybrid cooperative beamforming and jamming scheme to enhance the physical-layer security in the two-way relay network with an eavesdropper and a primary receiver. Cooperative beamforming and jamming are designed to maximize the secrecy rate with a total transmit power constraint of the relays and interference power constraint at the primary receiver. The beam former weights can be obtained by solving a semidefinite programming (SDP). And a method based on the first order Taylor polynomial which has lower complexity but comparable performance is introduced. Simulations show the joint scheme greatly improves the security.
引用
收藏
页码：99 / 103
页数：5
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