STAR-RIS Assisted Full-Duplex Communication Networks
Abdelhamid Salem, Kai-Kit Wong, Chan-Byoung Chae, and Yangyang Zhang

TL;DR
This paper investigates a STAR-RIS-assisted full-duplex communication system, deriving analytical expressions for ergodic rates, analyzing system performance under impairments, and optimizing parameters for maximum sum-rate in a 360-degree coverage scenario.
Contribution
It introduces a comprehensive analysis of STAR-RIS-assisted FD systems with NOMA, including closed-form rate expressions, impairment considerations, and an optimization framework for system parameters.
Findings
Closed-form ergodic rate expressions derived.
System performance impacted by self-interference and SIC imperfections.
Optimization of STAR-RIS parameters enhances sum-rate.
Abstract
Different from conventional reconfigurable intelligent surfaces (RIS), a recent innovation called simultaneous transmitting and reflecting reconfigurable intelligent surface (STAR-RIS) has emerged, aimed at achieving complete 360-degree coverage in communication networks. Additionally, fullduplex (FD) technology is recognized as a potent approach for enhancing spectral efficiency by enabling simultaneous transmission and reception within the same time and frequency resources. In this study, we investigate the performance of a STAR-RIS-assisted FD communication system. The STAR-RIS is strategically placed at the cell-edge to facilitate communication for users located in this challenging region, while cell-center users can communicate directly with the FD base station (BS). We employ a non-orthogonal multiple access (NOMA) pairing scheme and account for system impairments, such as…
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Taxonomy
TopicsAdvanced Wireless Communication Technologies · Advanced Antenna and Metasurface Technologies · Satellite Communication Systems
