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Optics Express

Optics Express

  • Editor: C. Martijn de Sterke
  • Vol. 20, Iss. 4 — Feb. 13, 2012
  • pp: 4564–4573

Performance of a novel LED lamp arrangement to reduce SNR fluctuation for multi-user visible light communication systems

Zixiong Wang, Changyuan Yu, Wen-De Zhong, Jian Chen, and Wei Chen  »View Author Affiliations

Optics Express, Vol. 20, Issue 4, pp. 4564-4573 (2012)

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This paper investigates the performance of our recently proposed LED lamp arrangement to reduce the SNR fluctuation from different locations in the room for multi-user visible light communications. The LED lamp arrangement consists of 4 LED lamps positioned in the corners and 12 LED lamps spread evenly on a circle. Our studies show that the SNR fluctuation under such a LED lamp arrangement is reduced from 14.5 dB to 0.9 dB, which guarantees that users can obtain almost identical communication quality, regardless of their locations. After time domain zero-forcing (ZF) equalization, the BER performances and channel capacities of 100-Mbit/s and 200-Mbit/s bipolar on-off-keying (OOK) signal with most significant inter-symbol interference (ISI) are very close to that of the channel without any ISI caused by this LED lamp arrangement.

© 2012 OSA

OCIS Codes
(060.4080) Fiber optics and optical communications : Modulation
(060.4510) Fiber optics and optical communications : Optical communications
(200.4560) Optics in computing : Optical data processing
(230.3670) Optical devices : Light-emitting diodes

ToC Category:
Fiber Optics and Optical Communications

Original Manuscript: October 18, 2011
Revised Manuscript: December 29, 2011
Manuscript Accepted: January 18, 2012
Published: February 9, 2012

Zixiong Wang, Changyuan Yu, Wen-De Zhong, Jian Chen, and Wei Chen, "Performance of a novel LED lamp arrangement to reduce SNR fluctuation for multi-user visible light communication systems," Opt. Express 20, 4564-4573 (2012)

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