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, Wei Chen

Research output: Journal article publicationJournal articleAcademic researchpeer-review

196 Citations (Scopus)


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.
Original languageEnglish
Pages (from-to)4564-4573
Number of pages10
JournalOptics Express
Issue number4
Publication statusPublished - 13 Feb 2012
Externally publishedYes

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics

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