STAR-RISs: Simultaneous Transmitting and Reflecting Reconfigurable Intelligent Surfaces

2021/01/24 by Jiaqi Xu, Xu, Jiaqi, Yuanwei Liu +5
Biochemistry, Genetics and Molecular Biology · Engineering · #Advanced Antenna and Metasurface Technologies #Advanced Wireless Communication Technologies #Applied Physics (physics.app-ph) #FOS: Electrical engineering #FOS: Physical sciences #Ocular Disorders and Treatments #Signal Processing (eess.SP) #electronic engineering #information engineering

paper · pdf · doi:10.48550/arxiv.2101.09663

openalex publication_date 2021/01/24 · openalex created_date 2021/04/13 · openalex updated_date 2026/07/28

Abstract

In this letter, simultaneous transmitting and reflecting reconfigurable intelligent surfaces (STAR-RISs) are studied. Compared with the conventional reflecting-only RISs, the coverage of STAR-RISs is extended to 360 degrees via simultaneous transmission and reflection. A general hardware model for STAR-RISs is presented. Then, channel models are proposed for the near-field and the far-field scenarios, base on which the diversity gain of the STAR-RISs is analyzed and compared with that of the conventional RISs. Numerical simulations are provided to verify analytical results and to demonstrate that full diversity order can be achieved on both sides of the STAR-RIS.

Citations

• A Novel Physics-based Channel Model for Reconfigurable Intelligent Surface-assisted Multi-user Communication Systems
• Towards the Use of Re-configurable Intelligent Surfaces in VLC Systems:\n Beam Steering

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