在物联网工业互联网中用于可见光通信的RIS辅助动态自适应的广视场接收器
Optics express
|October 20, 2023
概括
本研究介绍了一种新的宽视场 (FoV) 接收器,用于工业物联网 (IIoT) 中的可见光通信 (VLC) 系统. 这款新型接收器使用可重新配置的智能表面 (RIS) 来显著提高移动设备的通信范围.
科学领域:
- 光学通信是指光学通信.
- 无线网络无线网络.
- 智能系统 智能系统
背景情况:
- 当前的可见光通信 (VLC) 系统通常由于冷凝器镜头而具有狭窄的视野 (FoV),限制了工业物联网 (IIoT) 场景中的移动通信.
- 越来越多的IIoT连接需求需要一个VLC接收器,能够在更广泛的范围内检测信号,容纳移动终端.
研究的目的:
- 为可见光通信 (VLC) 系统提出和验证一款针对工业物联网 (IIoT) 应用量身定制的新型自适应式广视场 (FoV) 接收器.
- 通过扩大接收器的检测范围,在IIoT环境中增强移动终端的通信能力.
主要方法:
- 开发一种新型的自适应性宽视场 (FoV) 接收器,采用可重新配置的智能表面 (RIS).
- 建立基于最大到达流量标准的数学模型,以指导入射光方向的动态调整.
- 介绍了一种优化的RIS参数调整算法,以动态控制光方向并最大限度地提高信号接收.
主要成果:
- 拟议的RIS辅助接收器通过动态调整相撞光方向,有效地扩大了可检测范围.
- 模拟结果表明,新方法显著增加了可容忍的收发器偏移,与传统收发器相比增加了2到4倍.
- 对IIoT的宽FoV VLC接收器的可行性和有效性通过严格的模拟证实.
结论:
- 使用可重新配置的智能表面 (RIS) 的新型自适应宽FoV接收器为IIoT中增强VLC提供了可行的解决方案.
- 这种方法克服了传统VLC系统中狭窄的FoV的局限性,使与移动终端进行可靠的通信.
- 增强的收发器偏移容忍度为工业环境中更灵活,更可靠的无线通信铺平了道路.
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