论文标题
同时传输和反射（星） - riss：它们适用于双面发病率吗？
Simultaneously Transmitting and Reflecting (STAR)-RISs: Are they Applicable to Dual-Sided Incidence?
论文作者
论文摘要
提出了一个硬件模型和信号模型，用于同时传输和反映可重新配置的智能表面（Star-riss）的双面模型，其中信号同时出现在表面两侧。基于提出的硬件模型，开发了双面星际轮毂的信号模型。对于具有标量表面阻抗的元件，证明它们两侧的传播和反射系数都是相同的。基于获得的对称双面星模型，研究了一个与星级辅助的两用户上行链路通信系统，用于非正交多访问（NOMA）和正交多重访问（OMA）方案。用户中断概率的分析结果以高发射信噪比（SNR）制度得出。数值结果表明，NOMA比OMA的性能增益，并表明可以通过调整传输幅度和反射信号之间的比率来降低中断概率误差地面。
A hardware model and a signal model are proposed for dual-sided simultaneously transmitting and reflecting reconfigurable intelligent surfaces (STAR-RISs), where the signal simultaneously incident on both sides of the surface. Based on the proposed hardware model, signal models for dual-sided STAR-RISs are developed. For elements with scalar surface impedance, it is proved that their transmission and reflection coefficients on both sides are identical. Based on the obtained symmetrical dual-sided STAR model, a STAR-RIS-aided two-user uplink communication system is investigated for both non-orthogonal multiple access (NOMA) and orthogonal multiple access (OMA) schemes. Analytical results for the outage probabilities for users are derived in the high transmit signal-to-noise ratio (SNR) regime. Numerical results demonstrate the performance gain of NOMA over OMA and reveal that the outage probability error floor can be lowered by adjusting the ratio between the amplitudes of transmission and reflection signals.
