论文标题
可重新配置的智能表面几何形状对沟通性能的影响
Impact of Reconfigurable Intelligent Surface Geometry on Communication Performance
论文作者
论文摘要
当在发射器上应用光束成形时，仅可重构智能表面（RISS）的一部分将处于活动状态，并且研究RIS几何形状的影响是必不可少的。该字母旨在评估RIS几何形状，从线性（1D）和平面（2D）到圆柱（3D）结构。我们首先得出不同RIS拓扑的有效照明表面，并确定所得的信号噪声比（SNR）和中断概率。然后，我们研究了考虑到近场传播的最佳RIS位置，以权衡主动区域与接收的电力。数值结果量化了RIS几何紧凑性的好处，并提供了适用的范围。
When beamforming is applied at the transmitter, only part of reconfigurable intelligent surfaces (RISs) will be active, and it becomes indispensable to study the impact of RIS geometry. This letter aims at evaluating RIS geometry, ranging from linear (1D), and planar (2D), to cylindrical (3D) structures. We first derive the effective illuminated surface of different RIS topologies and determine the resulting signal-to-noise ratio (SNR) and outage probability. Then, we investigate the optimal RIS location to trade off active area versus received power considering near-field propagation. Numerical results quantify the benefit of RIS geometric compactness and provide their applicable ranges.
