User cooperation for IRS-aided secure MIMO systems
作者机构：School of Electronic Engineering and Computer ScienceQueen Mary University of LondonLondonE14NSUK. the National Mobile Communications Research LaboratorySoutheast UniversityNanjing 210096China. Department of Computer and Information SciencesNorthumbria UniversityNewcastle upon TyneNE18STUK. Department of Electronic and Electrical EngineeringUniversity College LondonLondonWC1E 6BTUK.
出 版 物：《Intelligent and Converged Networks》 (智能与融合网络（英文）)
年 卷 期：2022年第3卷第1期
页 面：86-102页
核心收录：
学科分类：0809[工学-电子科学与技术（可授工学、理学学位）] 08[工学]
主 题：intelligent reflecting surface(IRS) reconfigurable intelligent surface(RIS) robust design energy harvesting physical layer security
摘 要：An intelligent reflecting surface(IRS)is proposed to enhance the physical layer security in the Rician fading channel wherein the angular direction of the eavesdropper(ED)is aligned with a legitimate user.A two-phase communication system under active attacks and passive eavesdropping is considered in this *** base station avoids direct transmission to the attacked user in the first phase,whereas other users cooperate in forwarding signals to the attacked user in the second phase,with the help of IRS and energy harvesting *** the occurrence of active attacks,an outage-constrained beamforming design problem is investigated under the statistical cascaded channel error model,which is solved by using the Bernstein-type *** average secrecy rate maximization problem for the passive eavesdropping is formulated,which is then addressed by a low-complexity *** numerical results of this study reveal that the negative effect of the ED’s channel error is larger than that of the legitimate user.
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