离散多音频技术在可见光通信中的应用

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Abstract In the 300～800lx white light LED indoor lighting environment, a visible light communication (VLC) system is set up based on discrete multi-tone modulation technology (DMT) and its performance in a multi-path transmission channel model is evaluated. When the illuminance of environment brightness is 400lx and the bit error rate are 10^-3 and 10^-6, the data transfer rate are 260Mb/s and 220Mb/s, increased by 44.4% and 37.5% relative to the multi-pulse amplitude modulation (M-PAM) base band transmission system under the same conditions. The analysis results show that, discrete multi-tone modulation technology can not only resist to inter-symbol interference and noise in communication channels, but also significantly increase the data transmission speed in the limited bandwidth.

Key words： Discrete multi-tone modulation visible light communication white light LED inter-symbol interference multi-path communication

Received: 10 October 2013 Published: 27 June 2014

PACS:

TN929.12

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	Articles by authors
	Wang Wei
	Liang Xiuyan
	Wang Ning
	Wang Qiuping

Cite this article:

Wang Wei,Liang Xiuyan,Wang Ning等. Discrete Multi-tone Technique Application on Visible Light Communication[J]. Transactions of China Electrotechnical Society, 2014, 29(4): 160-165.

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http://dgjsxb.ces-transaction.com/EN/ OR http://dgjsxb.ces-transaction.com/EN/Y2014/V29/I4/160

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