Joint LED dimming and high capacity visible light communication by overlapping PPM

Bo Bai, Zhengyuan Xu, Yangyu Fan

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

68 Scopus citations

Abstract

Piggybacking communication by illumination LEDs provides additional valuable functionality to LED lighting fixtures as optical communication transmitters at little cost. However, joint dimming control and high data-rate communication requires proper supporting protocols under the bandwidth limitation of LEDs. This paper applies overlapping pulse position modulation (OPPM) to achieve high capacity communication and flexible dimming. It then analyzes both illumination and communication performance in terms of dimming range, flicker severity index, cutoff data rate, and power and bandwidth efficiencies, all comparing against OOK and variable PPM modulation schemes. The results show the best performance using OPPM, making it an ideal candidate technology for emerging visible light communication.

Original languageEnglish
Title of host publicationWOCC2010 Technical Program - The 19th Annual Wireless and Optical Communications Conference
Subtitle of host publicationConverging Communications Around the Pacific
DOIs
StatePublished - 2010
Event19th Annual Wireless and Optical Communications Conference, WOCC2010: Converging Communications Around the Pacific - Shanghai, China
Duration: 14 May 201015 May 2010

Publication series

NameWOCC2010 Technical Program - The 19th Annual Wireless and Optical Communications Conference: Converging Communications Around the Pacific

Conference

Conference19th Annual Wireless and Optical Communications Conference, WOCC2010: Converging Communications Around the Pacific
Country/TerritoryChina
CityShanghai
Period14/05/1015/05/10

Keywords

  • Cutoff data rate
  • Dimming
  • Flicker severity
  • Power and bandwidth efficiencies
  • VLC

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