Application of digital signal processing in high speed visible light communication system

被引：0
|
作者：
Chi, Nan [1 ]
Wang, Yiguang [1 ]
Wang, Yuanquan [1 ]
Li, Rongling [1 ]
Shang, Huiliang [1 ]
机构：
[1] Fudan Univ, Dept Commun Sci & Engn, Shanghai 200433, Peoples R China
来源：
OPTICAL METRO NETWORKS AND SHORT-HAUL SYSTEMS V | 2013年 / 8646卷
关键词：
visible light communication (VLC); digital signal processing; advanced modulation formats; multiple-input single-output (MISO); subcarrier multiplexing; orthogonal frequency division multiplexing (OFDM); light-emitting diode (LED);
D O I：
10.1117/12.2008358
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
Visible Light Communication (VLC) has received more and more attention in recent years. In this paper, we propose a novel configuration of unidirectional subcarrier multiplexing (SCM) -wavelength division multiplexing (WDM) -VLC system adopting quadrature amplitude modulation (QAM) orthogonal frequency division multiplexing (OFDM) modulation. Based on this configuration, we successfully demonstrate a 3x1 multiple-input single-output (MISO) OFDM-VLC transmission experiment using three blue phosphor LEDs. The transmission distance can be as long as 140cm. We also demonstrate an 800-Mb/s MISO SCM-WDM VLC transmission experiment based on RGB-LED with 66-cm transmission distance. In the two experiments, pre-equalization and post-equalization both are implemented to compensate for the poor frequency response of LEDs. And the properties of EVM and BER in all channels are measured and analysed.
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页数：7
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