LED拓扑结构对可见光通信性能影响的分析

在室内可见光通信的研究中,发光二极管的拓扑结构通常被忽略,大多将其视为一固定参数。针对其拓扑结构问题,提出了对不同的LED拓扑结构进行仿真分析,通过matlab建立了室内可见光通信系统模型,并对室内可见光通信中的发光二极管拓扑结构进行仿真测试,得到了不同发光二极管拓扑结构下的室内接收信噪比分布,进而分析不同的LED拓扑结构对信号传输的影响。仿真结果表明,发光二极管对室内接收信噪比分布的影响主要由其结构分布的均匀程度和发光二极管的照射强度是否均衡决定,且优化后的发光二极管拓扑结构具有更良好的室内信噪比分布,更适合室内可见光通信。

Analysis of the influence of LED topology on visible light communication performance

In the study of indoor visible light communication,the topology of LEDs is usually ignored,and most of them are regarded as a fixed parameter.Aiming at the topology problem,this paper proposes the simulation analysis of different LED topologies,establishes the indoor visible light communication system model through Matlab,and simulates the LED topology in indoor visible light communication,and obtains different LED topology.The indoor reception signal-to-noise ratio distribution is used to analyze the influence of different LED topologies on signal transmission.The simulation results show that the influence of LED on the indoor signal-to-noise ratio is mainly determined by the uniformity of the structure distribution and the illumination intensity of the LED,and the optimized LED topology has a better indoor SNR distribution,which is more suitable for indoor visible light communication.