withay:用于智能反射表面辅助毫米波系统的多功能3D模拟器

Hyuckjin Choi, Junil Choi
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引用次数: 5

摘要

提供宽带频谱的毫米波(mmWave)通信系统是5G通信系统的关键技术。虽然毫米波通信系统的小覆盖范围可以通过大量天线的波束形成来扩展,但信号在高频频段继承的强指向性使得毫米波通信系统容易受到信号阻塞。智能反射面(IRS)能够通过使用大量无源元件改变信道传播特性,将成为缓解毫米波信道中信号阻塞的关键。然而,先前使用IRS的毫米波系统的大多数工作都依赖于随机信道模型,没有考虑现实世界的几何环境。本文将介绍WiThRay(无线三维光线追踪),这是一个多功能模拟器,可以基于光线追踪为3D渲染几何环境生成毫米波通道,其中可以配置多个基站和多个IRSs。WiThRay还基于电磁学对IRS响应进行建模。利用WiThRay,我们展示了irs辅助毫米波通信系统在复杂和现实环境中的优势。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
WiThRay: Versatile 3D Simulator for Intelligent Reflecting Surface-aided MmWave Systems
Millimeter-wave (mmWave) communication systems that provide wideband spectra are a key technology in 5G communication systems. Although the small coverage of mmWave communication systems can be extended by beamforming with a large number of antennas, the strong directivity of signals inherited in high-frequency bands makes the mmWave communication systems vulnerable to signal blockage. Intelligent reflecting surface (IRS), which is able to change channel propagation characteristics by using a large number of passive elements, will become essential to mitigate the signal blockage in mmWave channels. Most of previous works on the mmWave systems using IRS, however, relied on stochastic channel models and did not consider real-world geometric environments. This paper is to introduce WiThRay (Wireless three-dimensional ray-tracing), a versatile simulator that generates the mmWave channels for 3D rendered geometric environments, where multiple base stations and multiple IRSs can be configured, based on ray-tracing. WiThRay also models the IRS response based on electromagnetics. Using WiThRay, we demonstrate the advantage of the IRS-aided mmWave communication systems in complicated and realistic environments.
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