智能反射表面辅助的无线通信系统的物理层安全综述  

Survey of physical layer security of intelligent reflecting surface-assisted wireless communication systems

作　　者：卢汉成[1,2] 王亚正 赵丹 罗涛 吴俊[3] LU Hancheng;WANG Yazheng;ZHAO Dan;LUO Tao;WU Jun(Information Network Laboratory,University of Science and Technology of China,Hefei 230027,China;Institute of Artificial Intelligence,Hefei Comprehensive National Science Center,Hefei 230027,China;School of Computer and Technology,Fudan University,Shanghai 200433,China)

机构地区：[1]中国科学技术大学信息网络实验室,安徽合肥230027 [2]合肥综合性国家科学中心人工智能研究院,安徽合肥230027 [3]复旦大学计算机科学与技术学院,上海200433

出　　处：《通信学报》2022年第2期171-184,共14页Journal on Communications

基　　金：国家重点研发计划基金资助项目(No.2020YFA0711400);国家自然科学基金资助项目(No.U21A20452,No.U19B2044)。

摘　　要：为了满足未来无线通信系统高谱效、高能效的要求,智能反射表面(IRS)技术得到了广泛的关注与研究。通过对IRS进行设计优化,能够从不同的角度增强无线通信系统的物理层安全(PLS)。基于此,对现有的IRS增强物理层安全的研究进行整理,从信息理论安全、隐蔽通信、密钥生成等主要方向对现有研究进行了归纳总结,阐述了各研究热点的模型特点和关键方法。最后,对IRS增强的物理层安全进行了总结梳理,并探讨了未来的研究热点方向。To meet the demand of high spectrum and energy efficiency in future wireless communication systems, intelligent reflecting surface(IRS), a promising technology has attracted significant attention. By proper design of IRS, PLS can be boosted from different perspectives. Based on that, current research about IRS-assisted PLS enhancement from various aspects, e.g., information-theoretic secrecy, covert communication, secret key generation and so on, were summarized. The system features and key solutions of the related papers were reviewed and several future research directions were discussed.

关 键 词：智能反射表面 无线通信系统 物理层安全 

分 类 号：TN92[电子电信—通信与信息系统]