【摘要】 智能超表面（RIS）是一种新兴的无线通信使能技术，在电力信息与通信技术融合的背景下展现出独特的优势。RIS具有低成本、低功耗、易部署等特点，可通过软件编程实现对无线传播环境的智能动态调控。此种独特的调控特性不仅能够显著提升合法用户的通信性能，还能有效抑制窃听链路的信号接收强度，从而有效提升无线通信系统的安全性能。首先阐述了几种经典的RIS架构；然后介绍了RIS辅助的几种无线安全通信系统的研究现状和关键技术，包括隐蔽通信、方向调制、空间调制及通信感知一体化网络；最后总结全文并对RIS辅助安全通信网络的潜在研究方向进行了展望。更多还原

【Abstract】 Reconfigurable intelligent surface(RIS) has emerged as a promising enabling technology for wireless communications, showing unique advantages in the context of the integration of power information and communication technologies. With features such as low cost, low power consumption, and ease of deployment, RIS can intelligently and dynamically control the wireless propagation environment through software programming. This capability not only significantly enhances the communication performance of legitimate users but also effectively suppresses the received signal strength of eavesdropping links, thereby improving the security of wireless communication systems. This paper first outlines several classical RIS architectures. It then reviews the current research status and key technologies of RIS-assisted secure wireless communication systems, including covert communication, directional modulation, spatial modulation, and integrated sensing and communication networks. Finally, potential research directions for RIS-assisted secure communication networks are discussed.更多还原