| 一种用于可见光通信的自适应OFDM系统设计与实验 |
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| 作者姓名： | 蔡少阳 陈力 王卫东 |
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| 作者单位： | 中国科学技术大学中国科学院无线光电通信重点实验室, 合肥 230027 |
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| 基金项目： | 973计划项目（2013CB329205）资助 |
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| 摘 要： | 可见光通信（visible light communication，VLC）作为一种新兴的无线通信技术，是目前针对无线频谱资源紧张的有效解决方案之一。根据VLC接收机电域接收信噪比的频域包络不变特性，提出一种低复杂度的自适应正交频分复用链路设计方案，并进行实验验证。结果表明，与已有的自适应等比特传输方案相比，本设计方法更好地利用了无线光信道的带宽资源，传输速率和BER性能等指标有明显提升。
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| 关 键 词： | 可见光通信 VLC 光OFDM 自适应技术 自适应OFDM |
| 收稿时间： | 2016-12-19 |
| 修稿时间： | 2017-03-29 |
Design and experiments of an adaptive OFDM system for visible light communication |
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| Authors: | CAI Shaoyang CHEN Li WANG Weidong |
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| Institution: | Key Laboratory of Wireless-Optical Communications of Chinese Academy of Sciences, University of Science and Technology of China, Hefei 230027, China |
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| Abstract: | As an emerging wireless communication technology, visible light communication (VLC) is one of the effective solutions for the shortage of wireless spectrum resource. In this work, a low-complexity design scheme of orthogonal frequency division multiplexing (OFDM) system is proposed based on the mask invariable characteristics of the received signal-to-noise rate of VLC in the electrical domain. The scheme is verified by the experiments. The experimental results show that, compared with the adaptive equal bits transmission scheme, the proposed adaptive OFDM system makes full use of the bandwidth resources of wireless optical channel, and it shows improvements in transmission rate and BER performance. |
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| Keywords: | visible light communication visible light communication(VLC) optical orthogonal frequency division multiplexing(OFDM) adaptive technology adaptive OFDM |
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