Brightness control methods for illumination and visible-light communication systems

Hidemitsu Sugiyama, Shinichiro Haruyama, Masao Nakagawa

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

73 Citations (Scopus)

Abstract

We have developed two brightness control methods for illumination and visible-light communication systems. One method is Pulse Width Modulation (PWM), the other is changing modulation depth. Using these proposed methods, we can achieve both dimmer i.e. brightness control and wireless communication at the same time. We discussed the relationship between PWM frequency, LED brightness, and communication performance. The results show that we can control brightness from 0% to 87.5% when we use PWM and data transmission possible when PWM frequency is high enough. Brightness can be controlled from 0% to 100% and communication performance is better than that of PWM when we change modulation depth.

Original languageEnglish
Title of host publicationThird International Conference on Wireless and Mobile Communications 2007, ICWMC '07
PublisherIEEE Computer Society
Pages78-83
Number of pages6
ISBN (Print)0769527965, 9780769527963
DOIs
Publication statusPublished - 2007
EventThird International Conference on Wireless and Mobile Communications 2007, ICWMC '07 - Guadeloupe, Guadeloupe
Duration: 2007 Mar 42007 Mar 9

Publication series

NameThird International Conference on Wireless and Mobile Communications 2007, ICWMC '07

Other

OtherThird International Conference on Wireless and Mobile Communications 2007, ICWMC '07
CountryGuadeloupe
CityGuadeloupe
Period07/3/407/3/9

ASJC Scopus subject areas

  • Computer Science Applications
  • Electrical and Electronic Engineering
  • Communication

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