| 用于VLC的LED半功率角优化布局方法研究 |
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| 引用本文： | 李昉,陈建平. 用于VLC的LED半功率角优化布局方法研究[J]. 中兴通讯技术, 2014, 0(6): 33-35 |
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| 作者姓名： | 李昉 陈建平 |
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| 作者单位： | 上海交通大学区域光纤通信网与新型光通信系统国家重点实验室,上海200240 |
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| 基金项目： | 国家重点基础研究发展（“973”）规划（2011CB301700） |
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| 摘 要： | 提出通过优化发光二极管(LED)半功率角的布局来提高室内可见光通信系统性能的方法。4种典型的LED布局方式的仿真结果表明,该方法对于提高可见光通信系统的信噪比、降低信噪比的波动有明显效果。对于均匀的LED布局方式,信噪比的波动从未优化时的5.2 d B大幅下降到0.3 d B。该方法不需要调节LED的功率,更适合于工程运用。
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| 关 键 词： | 可见光通信 发光二极管 优化布局 |
Optimization of LED SAHP for Indoor Visible Light Communication Systems |
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| LIFang,CHENJianping. Optimization of LED SAHP for Indoor Visible Light Communication Systems[J]. ZTE Communications, 2014, 0(6): 33-35 |
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| Authors: | LIFang CHENJianping |
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| Affiliation: | (State Key Laboratory of Advanced Optical Communication Systems and Networks, Shanghai Jiao Tong University, Shanghai 200240, China) |
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| Abstract: | This paper describes a method for optimizing the semi-angle at half power （SAHP） of a LED in order to improve indoor visible light communication. Four typical LED alignments are studied. The simulation results show that the proposed method increases SNR and reduces its fluctuation. Especial y in the case of evenly distributed LED alignment, SNR fluctuation reduces significantly—from 5.2 dB to 0.3 dB. A distinguishing feature of this method is that the same power is used for each LED, which makes this method feasible for practical applications. |
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| Keywords: | visible light communication light-emitting diodes alignment optimization |
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