Indoor Visible Light Data Transmission System Utilizing White LED Lights

Yuichi TANAKA  Toshihiko KOMINE  Shinichiro HARUYAMA  Masao NAKAGAWA  

Publication
IEICE TRANSACTIONS on Communications   Vol.E86-B   No.8   pp.2440-2454
Publication Date: 2003/08/01
Online ISSN: 
DOI: 
Print ISSN: 0916-8516
Type of Manuscript: PAPER
Category: Optical Wireless Communications
Keyword: 
optical wireless communication,  white LED light,  illuminance,  luminous intensity,  RMS delay spread,  indoor visible light communication system,  

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Summary: 
Future electric lights will be comprised of white LEDs (Light Emitting Diodes). White LEDs with a high power output are expected to serve in the next generation of lamps. In this paper, an indoor visible data transmission system utilizing white LED lights is proposed. In the proposed system, these devices are used not only for illuminating rooms but also for an optical wireless communication system. This system is suitable for private networks such as consumer communication networks. However, it remains necessary to investigate the properties of white LEDs when they are used as optical transmitters. Based on numerical analyses and computer simulations, it was confirmed that the proposed system could be used for indoor optical transmission.