An advanced A-law companding algorithm in VLC-OFDM

Xiaojing Zhang, Peng Liu, Jiang Liu, Song Liu

Research output: Chapter in Book/Report/Conference proceedingConference contribution

7 Citations (Scopus)

Abstract

In visible light communication (VLC) systems, the employing of orthogonal frequency division multiplexing (OFDM) may produce nonlinear distortion, due to the nonlinear characteristics of LEDs and the high peak to average power ratio (PAPR) of OFDM. Moreover, the clipping block deteriorates the distortion. In this paper, an advanced A-law algorithm for alleviating such distortion in VLC-OFDM systems is proposed. Simulation result shows that the BER of VLC-OFDM systems can be obviously reduced by employing the advanced A-law algorithm with suitable companding parameters, compared with the original VLC-OFDM process.

Original languageEnglish
Title of host publication2014 IEEE 3rd Global Conference on Consumer Electronics, GCCE 2014
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages721-722
Number of pages2
ISBN (Print)9781479951451
DOIs
Publication statusPublished - 2014 Feb 3
Externally publishedYes
Event2014 IEEE 3rd Global Conference on Consumer Electronics, GCCE 2014 - Tokyo, Japan
Duration: 2014 Oct 72014 Oct 10

Other

Other2014 IEEE 3rd Global Conference on Consumer Electronics, GCCE 2014
CountryJapan
CityTokyo
Period14/10/714/10/10

Keywords

  • nonlinear companding
  • nonlinear distortion
  • orthogonal frequency division multiplexing (OFDM)
  • visible light communication (VLC)

ASJC Scopus subject areas

  • Electrical and Electronic Engineering

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  • Cite this

    Zhang, X., Liu, P., Liu, J., & Liu, S. (2014). An advanced A-law companding algorithm in VLC-OFDM. In 2014 IEEE 3rd Global Conference on Consumer Electronics, GCCE 2014 (pp. 721-722). [7031221] Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/GCCE.2014.7031221