DOI QR코드

DOI QR Code

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)
  • 투고 : 2012.09.21
  • 심사 : 2013.03.21
  • 발행 : 2013.10.31

초록

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.

키워드

참고문헌

  1. IEEE 802.15.7, IEEE Standard for Wireless Medium Access Control (MAC) and Physical Layer (PHY) Specification for Visible Light Wireless Personal Area Networks (WPANs), IEEE, 2011.
  2. S. Haruyama, "Visible Light Communications," Proc. ECOC, 2010, pp. 1-22.
  3. H. Sugiyama, S. Haruyama, and M. Nagagawa, "Experimental Investigation of Modulation Method for Visible-Light Communications," IEICE Trans. Commun., vol. E89-B, no. 12, Dec. 2006, pp. 3393-3400. https://doi.org/10.1093/ietcom/e89-b.12.3393
  4. J. Vucic and K.-D. Langer, "High-Speed Visible Light Communications: State-of-the-Art," Proc. OPC, Mar. 2012, OTh3G.3.
  5. H.L. Minh et al., "High-Speed Visible Light Communications Using Multiple-Resonant Equalization," IEEE Photon. Tech. Lett., vol. 20, no. 14, 2008, pp. 1243-1245. https://doi.org/10.1109/LPT.2008.926030
  6. D. Lee et al., "Visible Light Wireless Communications Based on Predistorted OFDM," Opt. Commun., vol. 285, Apr. 2012, pp. 1767-1770. https://doi.org/10.1016/j.optcom.2011.12.048
  7. P. Das et al., "Color-Independent VLC Based on a Color Space without Sending Target Color Information," Opt. Commun., vol. 286, Jan. 2012, pp. 69-73.
  8. M. Dyble et al., "Impact of Dimming White LEDs: Chromaticity Shifts Due to Different Dimming Methods," Proc. SPIE, vol. 5941, Sept. 2005, pp. 1H1-1H9.
  9. K. Lee and H. Park, "Modulations for Visible Light Communications with Dimming Control," IEEE Photon. Tech. Lett., vol. 23, no. 16, 2008, pp. 1136-1138.
  10. K. Choi et al., "Visible Light Communications with Color and Dimming Control by Employing VPPM Coding," Proc. ICUFN, July 2012, pp. 10-12.

피인용 문헌

  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