Investigation into Using Compensation for the Nonlinear Effects of the Output of LEDs in Visible Light Communication Systems

Andrew Burton, Zabih Ghassemlooy, Stanislav Zvanovec, Paul Anthony Haigh, Hoa Le Minh, Xicong Li

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

1 Citation (Scopus)
17 Downloads (Pure)

Abstract

This paper investigate the effects of the nonlinear output power to the input current transfer function of a light emitting diode (LED) used as the transmitter in visible light communication systems, and proposes a compensation technique to mitigate the non-linearity. Using an off the shelf red, amber, blue, green (RAGB) LED the nonlinear transfer function is measured and then compensated for. The results show that, for the green LED, which has the highest degree of nonlinearity, an improvement in the received error vector magnitude (EVM)of almost 7 dB can be achieved. We also show that, the improvement in EVM over the uncompensated scheme decreases with increased LED linearity.
Original languageEnglish
Title of host publicationThe 2nd West Asian Colloquium on Optical Wireless Communications (WACOWC2019)
Subtitle of host publication27-28 April, Shahid Beheshti University, Tehran, Iran
Place of PublicationPiscataway, NJ
PublisherIEEE
Pages80-84
ISBN (Electronic)9781728137674
ISBN (Print)9781728137681
DOIs
Publication statusE-pub ahead of print - 25 Jul 2019
Event2019 2nd West Asian Colloquium on Optical Wireless Communications (WACOWC) - Tehran, Iran
Duration: 27 Apr 201928 Apr 2019

Conference

Conference2019 2nd West Asian Colloquium on Optical Wireless Communications (WACOWC)
Period27/04/1928/04/19

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