Physical layer security transmission algorithm based on cooperative beamforming in SWIPT system  

作　　者：Wu Guodong Hu Zhentao Jin Yong 武国栋;Hu Zhentao;Jin Yong(School of Computer and Information Engineering, Henan University, Kaifeng 475004, P.R.China)

机构地区：[1]School of Computer and Information Engineering, Henan University, Kaifeng 475004, P.R.China

出　　处：《High Technology Letters》2020年第2期204-210,共7页高技术通讯（英文版）

基　　金：the National Natural Science Foundation of China(No.61771006,61976080);the Key Research and Development Projects in Henan Province of China(No.192102210254);the Key Research Projects of University in Henan Province of China(No.19A413006);the First-class Discipline Training Foundation of Henan University(No.2018YLTD04).

摘　　要：Physical layer security transmission issue in simultaneous wireless information and power transfer(SWIPT)relay network with multiple eavesdropers is investigated in this paper.A novel cooperative beamforming algorithm is proposed to balance performance of cooperative jamming method and zero-forcing method.Using location prior information of eavesdropper,the proposed method imposes zero-forcing constraints on the capable eavesdropper and cooperative jamming on remaining weak eavesdropper,respectively.Compared with classical cooperative jamming or zero-forcing methods,the proposed method can compromise computational complexity and secrecy rate.Performance of the method is verified by simulation experiments.

关 键 词：simultaneous wireless information and power transfer(SWIPT) BEAMFORMING COOPERATIVE jamming(CJ) zero-forcing(ZF) SECRECY communication 

分 类 号：TN9[电子电信—信息与通信工程]