Orthogonal frequency Division Multiplexing for indoor optical wireless communications using visible light LEDs

S. K. Hashemi, Z. Ghassemlooy, Chao Lu, D. Benhaddou

Research output: Chapter in book / Conference proceedingConference article published in proceeding or bookAcademic researchpeer-review

51 Citations (Scopus)

Abstract

Visible light LEDs are being used for indoor optical wireless systems as well as room lighting. In indoor diffuse optical wireless links multipath dispersion limits the maximum transmission data rates. In this paper we investigate OFDM system where multipath induced intersymbol interference (ISI) is reduced, enabling higher data rates. Pilot signals are uniformly inserted into data symbols (subcarriers) and are extracted at the receiver for channel estimation. Predicted and simulated results for the symbol error rate (SER) for an OFDM employing BPSK, QPSK and M-QAM for line of sight (LOS) and diffuse links are presented for a range of pilot signal.
Original languageEnglish
Title of host publicationProceedings of the 6th International Symposium Communication Systems, Networks and Digital Signal Processing, CSNDSP 08
Pages174-178
Number of pages5
DOIs
Publication statusPublished - 9 Oct 2008
Event6th International Symposium Communication Systems, Networks and Digital Signal Processing, CSNDSP 08 - Graz, Austria
Duration: 23 Jul 200825 Jul 2008

Conference

Conference6th International Symposium Communication Systems, Networks and Digital Signal Processing, CSNDSP 08
Country/TerritoryAustria
CityGraz
Period23/07/0825/07/08

ASJC Scopus subject areas

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

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