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Optics Express

Optics Express

  • Editor: Andrew M. Weiner
  • Vol. 22, Iss. 13 — Jun. 30, 2014
  • pp: 15328–15334

Enhanced performance of visible light communication employing 512-QAM N-SC-FDE and DD-LMS

Yuanquan Wang, Xingxing Huang, Junwen Zhang, Yiguang Wang, and Nan Chi  »View Author Affiliations

Optics Express, Vol. 22, Issue 13, pp. 15328-15334 (2014)

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In this paper, a novel hybrid time-frequency adaptive equalization algorithm based on a combination of frequency domain equalization (FDE) and decision-directed least mean square (DD-LMS) is proposed and experimentally demonstrated in a Nyquist single carrier visible light communication (VLC) system. Adopting this scheme, as well with 512-ary quadrature amplitude modulation (512-QAM) and wavelength multiplexing division (WDM), an aggregate data rate of 4.22-Gb/s is successfully achieved employing a single commercially available red-green-blue (RGB) light emitting diode (LED) with low bandwidth. The measured Q-factors for 3 wavelength channels are all above the Q-limit. To the best of our knowledge, this is the highest data rate ever achieved by employing a commercially available RGB-LED.

© 2014 Optical Society of America

OCIS Codes
(060.0060) Fiber optics and optical communications : Fiber optics and optical communications
(230.3670) Optical devices : Light-emitting diodes
(060.2605) Fiber optics and optical communications : Free-space optical communication

ToC Category:
Optical Communications

Original Manuscript: April 29, 2014
Revised Manuscript: June 9, 2014
Manuscript Accepted: June 9, 2014
Published: June 16, 2014

Yuanquan Wang, Xingxing Huang, Junwen Zhang, Yiguang Wang, and Nan Chi, "Enhanced performance of visible light communication employing 512-QAM N-SC-FDE and DD-LMS," Opt. Express 22, 15328-15334 (2014)

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