目前基于白光LED(发光二极管)的室内可见光通信信道模型的研究主要集中于理论分析, 因此信道特性对系统性能的影响还不明确。文章首先分析并优化了室内白光LED通信信道理论模型, 并在此基础上研究信道编解码算法, 通过Simulink软件搭建信道模型和可见光通信系统来分析信道编码对系统性能的影响, 得到了适合可见光通信系统信道特性的信道编码方法。

As the current researches on the channel modeling of white LED-based indoor Visible Light Communication (VLC) mainly focus on its theoretical analysis, the influence of channel characteristics on system performance is not yet definite. In this paper, we first analyze and optimize the theoretical channel model and on this basis, work on the channel codec algorithm. By building a channel model and a VLC system by Simulink, we analyze the effects of channel encoding on the system performances, thus obtaining channel encoding method suitable for the channel characteristics of VLC systems.