论文标题
星线辅助全双工通信系统中的总和利率最大化
Sum Rate Maximization in STAR-RIS Assisted Full-Duplex Communication Systems
论文作者
论文摘要
研究了同时传输和反映可重新配置的智能表面（Star-Ris）辅助全双工（FD）通信系统的总和结果。星线元素的反射和传输系数已针对能量分割和模式切换协议进行了优化，以最大化系统的加权总和。潜在的优化问题是非凸，因此，已使用连续的凸近似技术来开发有效的算法以获得亚最佳溶液。因此，按预定义的阈值率和单位模式约束，在星际范围内的最大平均加权率和相应的系数被量化。将所提出的系统设计的性能与通过模拟的传统反射/传输仅RISS和半双链对应物进行比较，在该模拟中可以观察到Star-Ris可以提高FD系统的性能。
The sum-rate performance of simultaneous transmitting and reflecting reconfigurable intelligent surface (STAR-RIS) assisted full-duplex (FD) communication systems is investigated. The reflection and transmission coefficients of STAR-RIS elements are optimized for the energy splitting and mode switching protocols to maximize the weighted sum rate of the system. The underlying optimization problems are non-convex, and hence, the successive convex approximation technique has been employed to develop efficient algorithms to obtain sub-optimal solutions. Thereby, the maximum average weighted sum rate and corresponding coefficients at the STAR-RIS subject to predefined threshold rates and unit-modulus constraints are quantified. The performance of the proposed system design is compared with the conventional reflecting/transmitting-only RISs and half-duplex counterparts via simulations where it is observed that STAR-RIS can boost the performance of FD systems.
