Low complexity clipped Frequency Shift Keying (FSK) for Visible Light Communications

G. M.Mougoue Yamga, A. R. Ndjiongue, K. Ouahada

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

10 Citations (Scopus)

Abstract

This paper proposes an asymmetric frequency shift keying (AFSK) modulation technique for visible light communications (VLC) systems. AFSK is derived from the normal FSK in response to the non-negative aspect of VLC technology. AFSK provides VLC systems with a low cost and low complexity modulation technique that mitigates flickering and dimming for both square and rectified sine waves signals. The binary version of AFSK is analyzed and a general expression is proposed to its carrier frequency based on the original FSK. Simulated results of selected AFSK constellation sizes which perform better than on-off keying are presented. We also present M-ary FSK ({M}-FSK) modulation in the VLC channel.

Original languageEnglish
Title of host publication2018 IEEE 7th International Conference on Adaptive Science and Technology, ICAST 2018
PublisherIEEE Computer Society
ISBN (Electronic)9781538642337
DOIs
Publication statusPublished - 24 Oct 2018
Event7th IEEE International Conference on Adaptive Science and Technology, ICAST 2018 - Accra, Ghana
Duration: 22 Aug 201824 Aug 2018

Publication series

NameIEEE International Conference on Adaptive Science and Technology, ICAST
Volume2018-August
ISSN (Print)2326-9413
ISSN (Electronic)2326-9448

Conference

Conference7th IEEE International Conference on Adaptive Science and Technology, ICAST 2018
Country/TerritoryGhana
CityAccra
Period22/08/1824/08/18

Keywords

  • AFSK
  • Dimming and flickering mitigation
  • Frequency modulation
  • VLC systems

ASJC Scopus subject areas

  • Computer Networks and Communications
  • Information Systems
  • Software
  • Electrical and Electronic Engineering
  • Communication

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