Demonstration of bi-directional LED visible light communication using TDD traffic with mitigation of reflection interference

Y. F. Liu*, C. H. Yeh, Chi-Wai Chow, Y. Liu, Y. L. Liu, H. K. Tsang

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

63 Scopus citations

Abstract

In this work, we experimentally demonstrate a bi-directional transmission link using light emitting diode (LED) visible light communication (VLC) for both downlink and uplink paths. Time-divisionduplex (TDD) is proposed and demonstrated to significantly eliminate the reflection interference in VLC. A free space bi-directional transmission of 2 m using simple on-off keying (OOK) modulation with bit error rate (BER) of < 10-5 in both directions are achieved. Moreover, the influence of reflection interference is analyzed, showing the proposed scheme can significantly eliminate the reflection interference.

Original languageEnglish
Pages (from-to)23019-23024
Number of pages6
JournalOptics Express
Volume20
Issue number21
DOIs
StatePublished - 8 Oct 2012

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