30 January 2018 DMT visible light communication using commercial RGBA LEDs
Author Affiliations +
VLC systems using commercial light emitting diode (LED) offer provision of simultaneous data transmission and illumination. However, limited modulation bandwidth and non-linear distortions are the main challenges faced by VLC designs in achieving high transmission data rates. Wavelength-division multiplexing in VLC (WDM-VLC) can improve the data rates to meet gigabit/s data standards. In this paper, we study the VLC data transmission using a commercially available red-green-blue-amber (RGBA) LED model. With quadrature amplitude modulation based discrete multi-tone (QAM-DMT) transmission, we demonstrate that proposed VLC system can achieve aggregate transmission rate of 2.1 Gb/s at bit error rate (BER) well below 2×10-3, which is typical hard-decision forward error correction (FEC) threshold.
Conference Presentation
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Rakesh Krishna VS, Ivan B. Djordjevic, "DMT visible light communication using commercial RGBA LEDs", Proc. SPIE 10560, Metro and Data Center Optical Networks and Short-Reach Links, 105600J (30 January 2018); doi: 10.1117/12.2288784; https://doi.org/10.1117/12.2288784

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