DMT visible light communication using commercial RGBA LEDs

Rakesh Krishna Vs, Ivan B Djordjevic

Research output: Chapter in Book/Report/Conference proceedingConference contribution


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.

Original languageEnglish (US)
Title of host publicationMetro and Data Center Optical Networks and Short-Reach Links
EditorsYouichi Akasaka, Atul K. Srivastava, Madeleine Glick
ISBN (Electronic)9781510616059
StatePublished - 2018
EventMetro and Data Center Optical Networks and Short-Reach Links 2018 - San Francisco, United States
Duration: Jan 30 2018Jan 31 2018

Publication series

NameProceedings of SPIE - The International Society for Optical Engineering
ISSN (Print)0277-786X
ISSN (Electronic)1996-756X


OtherMetro and Data Center Optical Networks and Short-Reach Links 2018
Country/TerritoryUnited States
CitySan Francisco


  • BER
  • DMT
  • QAM
  • VLC
  • WDM
  • bit and power loading
  • clipping
  • nonlinear distortion

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Computer Science Applications
  • Applied Mathematics
  • Electrical and Electronic Engineering


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