A 100 Mb/s visible light communications system using a linear adaptive equalizer

P. A. Haigh*, Z. Ghassemlooy, S. Rajbhandari, E. Leitgeb

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference Contribution (Conference Proceeding)

3 Citations (Scopus)

Abstract

This paper presents experimental results demonstrating a > 100 Mb/s visible light communications (VLC) system using linear adaptive equalizers for the first time. In order to achieve high transmission speeds, generally the research community has adopted spectrally efficient modulation formats such as discrete multi-tone and equalizers are overlooked. The reason for this is unclear as equalizers offer a substantial capacity for removing inter-symbol interference. As a result, in this paper we implement a line-of-sight VLC link with an ∼8 MHz bandwidth and a linear feedforward equalizer; the number of taps is varied in order to gain insight into the system performance using varying complexity. The 120 Mb/s transmission speed ultimately achieved offers a bit-rate to bandwidth gain of ∼15 times.

Original languageEnglish
Title of host publication2014 19th European Conference on Networks and Optical Communications, NOC 2014
PublisherInstitute of Electrical and Electronics Engineers (IEEE)
Pages136-139
Number of pages4
ISBN (Print)9781479938728
DOIs
Publication statusPublished - 1 Jan 2014
Event2014 19th European Conference on Networks and Optical Communications, NOC 2014 - Milano, United Kingdom
Duration: 4 Jun 20146 Jun 2014

Conference

Conference2014 19th European Conference on Networks and Optical Communications, NOC 2014
CountryUnited Kingdom
CityMilano
Period4/06/146/06/14

Keywords

  • Equalizers
  • light emitting diodes
  • visible light communications

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