Joint Beamforming and Jamming Design for Secure Cooperative Hybrid Satellite-Terrestrial Relay Network

被引:0
作者
Yan, Yan [1 ]
Zhang, Bangning [1 ]
Guo, Daoxing [1 ]
Li, Shengnan [1 ]
Niu, Hehao [1 ]
Wang, Xi [2 ]
机构
[1] PLA Univ Sci & Technol, Coll Commun & Engn, Nanjing, Jiangsu, Peoples R China
[2] Nanjing Panda Handa Technol Ltd, Nanjing, Jiangsu, Peoples R China
来源
2016 25TH WIRELESS AND OPTICAL COMMUNICATION CONFERENCE (WOCC) | 2016年
关键词
Hybrid satellite-terrestrial relay network; amplify-and-forward relaying; physical layer security; beamforming; artificial noise; PHYSICAL LAYER SECURITY; SYSTEMS;
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
This paper investigates the secure transmit design of a cooperative hybrid satellite-terrestrial relay network (HSTRN). Assuming that amplify-and-forward (AF) protocol is adapted at terrestrial relays, and global channel state information (CSI) is known, we propose two schemes through jointly optimizing the relay beamforming vector and the covariance matrix of artificial noise (AN) to maximize the secrecy rate. In the first scheme, our design is based on secrecy rate maximization and optimal solution is obtained by following the idea of two-level optimization which is composed of one-dimensional search technique and semidefinite relaxation (SDR) technique. In the second scheme, to reduce the computation, we assume that there is no information leakage to all eavesdroppers, and the solution of this problem is obtained by solving one semidefinite programing (SDP) only with SDR. Numerical results are provided to demonstrate the performance of different designs and the benefit of AN.
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页数:5
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