Security Beamforming Algorithms in Multibeam Satellite Systems

摘要：

　　This paper investigates the physical layer security in a multibeam satellite communication system,where each legitimate user is surrounded by one eavesdropper.First of all,an optimization problem is formulated to maximize the sum of achievable secrecy rate,while satisfying the on-board satellite transmit power constraint.Then,two transmit beamforming(BF)schemes,namely,the zero-forcing(ZF)and the signal-to-leakage-and-noise ratio(SLNR)BF algorithms are proposed to obtain the BF weight vectors as well as power allocation coefficients.Finally,simulation results are provided to verify the validity of the two proposed methods and demonstrate that the SLNR BF algorithm outperforms the ZF BF algorithm.

关键词： Security multibeam satellite physical layer security the sum of achievable secrecy rate zero-forcing signal-to-leakage-and-noise ratio

作者: Weixin Lu Yangwei Jiang Chunyan Yin Xiangshuai Tao Ping Lai

作者单位: College of Communication Engineering,PLA University of Science and Technology,Nanjing,China Unit.63981,Wuhan,China

会议类型: 国际会议

会议名称: 2017 IEEE 2nd Advanced Information Technology,Electronic and Automation Control Conference(IAEAC 2017)(2017 IEEE 第2届先进信息技术、电子与自动化控制国际会议)

会议地点: 重庆

会议语种:英文

页码: 1272-1277

在线出版日期: 2017-03-25（万方平台首次上网日期，不代表论文的发表时间）