Nonlinear Noise Analysis About White LED in Visible Light Communication

WANG Zhi-bin; DONG Wei; REN Ying; WU Su-lian; GU Er-dan

doi:10.3788/fgxb20183905.0745

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Nonlinear Noise Analysis About White LED in Visible Light Communication

更新时间：2020-08-12

- Nonlinear Noise Analysis About White LED in Visible Light Communication
- Chinese Journal of Luminescence Vol. 39, Issue 5, Pages: 745-750(2018)
- 作者机构：
  
  1. 燕山大学电气工程学院, 河北秦皇岛 066004
  2. 浙江杭申电气集团有限公司, 浙江杭州 311234
- 作者简介：
- 基金信息：
  
  Supported by National Natural Science Foundation for Distinguished Young Scholars of
- DOI：10.3788/fgxb20183905.0745
  CLC： TN929.12
- Received：04 September 2017，
  
  Revised：23 November 2017，
  
  Published Online：05 January 2018，
  
  Published：05 May 2018
- 稿件说明：
移动端阅览
王志斌, 董伟, 任英等. 可见光通信中的白光LED非线性噪声分析[J]. 发光学报, 2018,39(5): 745-750

WANG Zhi-bin, DONG Wei, REN Ying etc. Nonlinear Noise Analysis About White LED in Visible Light Communication[J]. Chinese Journal of Luminescence, 2018,39(5): 745-750
王志斌, 董伟, 任英等. 可见光通信中的白光LED非线性噪声分析[J]. 发光学报, 2018,39(5): 745-750 DOI： 10.3788/fgxb20183905.0745.

WANG Zhi-bin, DONG Wei, REN Ying etc. Nonlinear Noise Analysis About White LED in Visible Light Communication[J]. Chinese Journal of Luminescence, 2018,39(5): 745-750 DOI： 10.3788/fgxb20183905.0745.

摘要

针对LED的非线性特征，提出一种计算OOK调制可见光通信系统的非线性噪声的方法，进而求出传输信噪比以及误码率。运用Matlab仿真分析得出LED直流偏置点和误码率的关系曲线，并通过可见光通信系统图像传输实验验证了该曲线的正确性。该曲线对于LED的型号和最佳偏置点的选取具有很好的指导意义。

Abstract

An algorithm of nonlinearity noise led by LED nonlinearity was proposed. The signal-to-noise ratio and bit error rate of visible light communications system with OOK modulation could be obtained through the algorithm. The curve about the relation between LED bias point and bit error rate were plotted with Matlab simulation. The results were proved by visible light communication system image transmission experiment. The curve has great significance on the choice of proper LED model and bias point about VLC system experiment.

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references

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