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A 3-Gb/s single-LED OFDM-based wireless VLC link using a gallium nitride μ LED

Research output: Contribution to journalArticle

  • Dobroslav Tsonev
  • Hyunchae Chun
  • Sujan Rajbhandari
  • Jonathan J D McKendry
  • Stefan Videv
  • Erdan Gu
  • Mohsin Haji
  • Scott Watson
  • Anthony E. Kelly
  • Grahame Faulkner
  • Martin D. Dawson
  • Harald Haas
  • Dominic O'Brien

Related Edinburgh Organisations

Original languageEnglish
Article number6701327
Pages (from-to)637-640
Number of pages4
JournalIEEE Photonics Technology Letters
Volume26
Issue number7
DOIs
Publication statusPublished - 1 Apr 2014

Abstract

This letter presents a visible light communication (VLC) system based on a single 50-μm gallium nitride light emitting diode (LED). A device of this size exhibits a 3-dB modulation bandwidth of at least 60 MHz-significantly higher than commercially available white lighting LEDs. Orthogonal frequency division multiplexing is employed as a modulation scheme. This enables the limited modulation bandwidth of the device to be fully used. Pre-and postequalization techniques, as well as adaptive data loading, are successfully applied to achieve a demonstration of wireless communication at speeds exceeding 3 Gb/s. To date, this is the fastest wireless VLC system using a single LED.

    Research areas

  • OFDM, optical modulation, optical wireless communication, Visible light communication

ID: 18659430