论文标题
IRS辅助FSO系统中聚焦梁的相班置横梁设计和渠道建模
Phase-Shift Design and Channel Modeling for Focused Beams in IRS-Assisted FSO Systems
论文作者
论文摘要
对自由空间光学（FSO）的兴趣正在迅速增长，作为对下一代移动或低轨道卫星通信进行回程的潜在解决方案。已经提出了各种技术在FSO系统中采用智能反射表面（IRS），例如异常反射，功率扩增和横梁拆分。通过将反射的光束在RX镜头处进行直接或聚焦，可以为接收器（RX）传递更多的功率。在这项研究中，我们建议对IRS进行横梁聚焦的相移设计。此外，我们提出了一个新的指向误差模型，并且当梁宽度与RX的光圈大小相当或小时时，适用于中断性能分析。分析结果通过蒙特卡洛模拟验证。这项研究为未来的研究提供了基本的初步结果，该研究假设FSO系统中的聚焦光束。
Interest in free-space optics (FSO) is rapidly growing as a potential solution for the backhaul of next-generation mobile or low-orbit satellite communications. Various techniques have been suggested for employing an intelligent reflecting surface (IRS) in FSO systems, such as anomalous reflection, power amplification, and beam splitting. It is possible to deliver more power to the receiver (Rx) by collimating or focusing the reflected beam at the Rx lens. In this study, we propose a phase-shift design of an IRS for beam focusing. In addition, we propose a new pointing error model and an outage performance analysis applicable when the beam width is comparable to or less than the aperture size of the Rx. The analytical results are validated by Monte Carlo simulations. This study provides essential preliminary results for future researches that assume a focused beam in FSO systems.
