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Electronics and Telecommunications Research Institute (한국전자통신연구원)
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Visible Light Communication with Color and Brightness Control of RGB LEDs

  • Choi, Kyungmook (School of Electrical Engineering, Kookmin University) ;
  • Jang, Yunseon (School of Electrical Engineering, Kookmin University) ;
  • Ju, MinChul (School of Electrical Engineering, Kookmin University) ;
  • Park, Youngil (School of Electrical Engineering, Kookmin University)
  • Received : 2012.09.21
  • Accepted : 2013.03.21
  • Published : 2013.10.31
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Abstract

We propose a visible light communication system in which the color and brightness are controllable. Pulse width modulation and variable pulse position modulation (VPPM) schemes are used to control the color and brightness, respectively. A digital algorithm to decode VPPM signals is suggested and implemented. A seamless transmission is observed in a testbed experiment under various environmental conditions. The proposed scheme can be applied to emotional-lighting-based wireless optical communication.

Keywords

References

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Cited by

  1. Novel Architecture for Efficient Implementation of Dimmable VPPM in VLC Lightings vol.36, pp.6, 2013, https://doi.org/10.4218/etrij.14.0114.0396
  2. Study on the color merging of white light and transmission properties of wavelength division multiplexing visible light communication system based on RGB light-emitting diodes vol.55, pp.10, 2016, https://doi.org/10.1117/1.oe.55.10.106110