| 可见光通信中的白光LED非线性噪声分析 |
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| 引用本文： | 王志斌,董伟,任英,武素莲,顾而丹.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. |
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| 作者姓名： | 王志斌 董伟 任英 武素莲 顾而丹 |
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| 作者单位： | 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 |
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| 基金项目： | 国家自然科学基金青年科学基金（61107039）；河北省自然科学基金青年基金（F2012203202）资助项目 |
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| 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。
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| 关 键 词： | 可见光通信 白光LED OOK调制 非线性噪声 误码率 |
| 收稿时间： | 2017-09-04 |
Nonlinear Noise Analysis About White LED in Visible Light Communication |
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| WANG Zhi-bin,DONG Wei,REN Ying,WU Su-lian,GU Er-dan.Nonlinear Noise Analysis About White LED in Visible Light Communication[J].Chinese Journal of Luminescence,2018,39(5):745-750. |
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| Authors: | WANG Zhi-bin DONG Wei REN Ying WU Su-lian GU Er-dan |
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| Institution: | 1. School of Electrical Engineering, Yanshan University, Qinhuangdao 066004, China;
2. Zhejiang Hangshen Electric Group Corp., LTD, Hangzhou 311234, China |
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| 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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| Keywords: | visible light conmunication(VLC) white LED OOK modulation nonlinearity noise bit error rate(BER) |
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