Channel modelling for indoor visible light communications
Channel modelling for indoor visible light communications
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DOI：
10.1098/rsta.2019.0187
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发表时间：
2020-04-17
期刊：
影响因子：
5
通讯作者：
Uysal, Murat
中科院分区：
文献类型：
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作者：
Miramirkhani, Farshad;Uysal, Murat
可见光通信（VLC）除了用于照明的主要目的外，还允许将发光二极管（led）双重用于无线通信目的。与其他通信系统一样，真实的信道建模是VLC系统设计、分析和测试的关键。在本文中，我们提出了室内VLC通道模型的全面调查。为了设置背景，我们首先概述了过去备受关注的红外通道建模，并强调了可见光和红外光学波段之间的差异。鉴于此，我们对现有的VLC通道建模研究进行了比较讨论，并指出了相关的优点和缺点。然后，我们详细描述了一种基于非顺序光线追踪的特定地点通道建模方法，该方法可以精确捕获给定室内环境的光传播特性。我们进一步介绍了通过这种方法开发的代表性部署场景的通道模型，这些模型被电气和电子工程协会（IEEE）采用为参考通道模型。最后，我们考虑了移动VLC场景，并研究了接收器位置和旋转对移动室内用户的影响。本文是“光无线通信”专题的一部分。
Visible light communication (VLC) allows the dual use of light-emitting diodes (LEDs) for wireless communication purposes in addition to their primary purpose of illumination. As in any other communication system, realistic channel modelling is a key for VLC system design, analysis and testing. In this paper, we present a comprehensive survey of indoor VLC channel models. In order to set the background, we start with an overview of infrared (IR) channel modelling, which has received much attention in the past, and highlight the differences between visible and IR optical bands. In the light of these, we present a comparative discussion of existing VLC channel modelling studies and point out the relevant advantages and disadvantages. Then, we provide a detailed description of a site-specific channel modelling approach based on non-sequential ray tracing that precisely captures the optical propagation characteristics of a given indoor environment. We further present channel models for representative deployment scenarios developed through this approach that were adopted by the Institute of Electrical and Electronics Engineering (IEEE) as reference channel models. Finally, we consider mobile VLC scenarios and investigate the effect of receiver location and rotation for a mobile indoor user.This article is part of the theme issue 'Optical wireless communication'.