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

Nan Chi; Yiguang Wang; Yuanquan Wang; Rongling Li; Huiliang Shang

doi:10.1117/12.2008358

5 February 2013 Application of digital signal processing in high-speed visible-light communication system

Nan Chi, Yiguang Wang, Yuanquan Wang, Rongling Li, Huiliang Shang

Proceedings Volume 8646, Optical Metro Networks and Short-Haul Systems V; 86460L (2013) https://doi.org/10.1117/12.2008358
Event: SPIE OPTO, 2013, San Francisco, California, United States

Abstract

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.

Citation Download Citation

Nan Chi, Yiguang Wang, Yuanquan Wang, Rongling Li, and Huiliang Shang "Application of digital signal processing in high-speed visible-light communication system", Proc. SPIE 8646, Optical Metro Networks and Short-Haul Systems V, 86460L (5 February 2013); https://doi.org/10.1117/12.2008358

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