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Coupled Phase-Shift STAR-RISs: A General Optimization Framework - MaRDI portal

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Coupled Phase-Shift STAR-RISs: A General Optimization Framework

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Publication:6406835

arXiv2208.01942MaRDI QIDQ6406835

Author name not available (Why is that?)

Publication date: 3 August 2022

Abstract: A general optimization framework is proposed for simultaneously transmitting and reflecting reconfigurable surfaces (STAR-RISs) with coupled phase shifts, which converges to the Karush-Kuhn-Tucker (KKT) optimal solution under some mild conditions. More particularly, the amplitude and phase-shift coefficients of STAR-RISs are optimized alternatively in closed form. To demonstrate the effectiveness of the proposed optimization framework, the throughput maximization problem is considered in a case study. It is rigorously proved that the KKT optimal solution is obtained. Numerical results confirm the effectiveness of the proposed optimization framework compared to baseline schemes.




Has companion code repository: https://github.com/zhaolin820/coupled-phase-shift-STAR-RIS








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