基于能量最优的室内可见光通信LED布局

发布时间：2018-04-22 14:27

  本文选题：光通信 + 发光二极管　； 参考：《光学学报》2017年08期

【摘要】：LED兼具照明和数据通信功能,在室内可见光通信(VLC)中,LED的布局对维持接收面上接收功率的稳定分布有重要作用。室内LED矩形布局下的接收功率分布并不能覆盖整个接收面,存在接收功率中断区,无法实现最优的VLC系统性能。考虑室内墙面及地板的一次反射,研究LED在不同位置的布局方案,采用粒子群优化(PSO)算法分析LED布局方案,设计了能耗最小的LED圆形布局方案。仿真分析了LED矩形布局和圆形布局下的接收功率分布、信号中断率、能量损耗以及信噪比分布,仿真结果表明LED圆形布局的VLC系统性能优于矩形布局,需要的LED数量几乎为矩形布局的一半,减小了VLC系统的码间干扰。
[Abstract]:LED has both lighting and data communication functions. In indoor visible light communication (VLC), the layout of LED plays an important role in maintaining the stable distribution of receiving power on the receiving surface. The receiving power distribution in the indoor LED rectangular layout can not cover the entire receiving surface, and there is a broken area in the receiving power. The performance of the optimal VLC system can not be achieved. Consider the indoor performance of the VLC system. A reflection on the wall and the floor, the layout scheme of LED in different positions is studied. The particle swarm optimization (PSO) algorithm is used to analyze the LED layout scheme, and the LED circular layout scheme is designed for the minimum energy consumption. The simulation analysis is made of the receiving power distribution, the signal interruption rate, the energy loss and the signal-to-noise ratio distribution under the LED rectangular layout and the circular layout. The results show that the performance of the VLC system with LED circular layout is better than that of the rectangular layout, and the number of LED required is almost half of the rectangular layout, thus reducing the intersymbol interference of the VLC system.

【作者单位】： 长春理工大学光电工程学院;长春理工大学电子信息工程学院;长春理工大学微纳光学制造实验室;
【基金】：国家自然科学基金青年基金(61605016) 长春理工大学校内基金(cust201504089)
【分类号】：TN929.1
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本文编号：1787644