作者
Yuan Guo, Yang Liu, Qingqing Wu, Qingjiang Shi, Yang Zhao
发表日期
2023/3/6
期刊
IEEE Transactions on Communications
出版商
IEEE
简介
Although the reconfigurable intelligent surface (RIS) technology is envisioned promising to enhance communication from all aspects, including physical-layer security, increasing concerns have lately been cast onto its defects—the severe “double-fading” loss and its confined-to-half-space coverage. Diverse novel RIS architectures have recently emerged to partially overcome these shortcomings, yet perfect solution is still absent. This paper proposes a novel double-faced active (DFA)-RIS structure to surmount the above two prominent defects simultaneously. Furthermore, we utilize the DFA-RIS to promote secrecy performance via jointly designing access point (AP)’s beamforming and DFA-RIS configuration towards maximizing sum secrecy rate (SR). The optimization problem is highly challenging due to the constraints deriving from the DFA-RIS architecture, especially the presence of power splitting parameters …
引用总数
学术搜索中的文章
Y Guo, Y Liu, Q Wu, Q Shi, Y Zhao - IEEE Transactions on Communications, 2023