Adaptive scheme for maintaining the performance of the in-home white-LED visible light wireless communications using OFDM

Chi-Wai Chow*, C. H. Yeh, Y. F. Liu, P. Y. Huang, Y. Liu

*Corresponding author for this work

Research output: Contribution to journalArticle

32 Scopus citations

Abstract

Spectral-efficient orthogonal frequency division multiplexing (OFDM) is a promising modulation format for the light-emitting-diode (LED) optical wireless (OW) visible light communication (VLC). VLC is a directional and line-of-sight communication; hence the offset of the optical receiver (Rx) and the LED light source will result in a large drop of received optical power. In order to keep the same luminance of the LED light source, we propose and demonstrate an adaptive control of the OFDM modulation-order to maintain the VLC transmission performance. Experimental results confirm the feasibility of the proposed scheme.

Original languageEnglish
Pages (from-to)49-52
Number of pages4
JournalOptics Communications
Volume292
DOIs
StatePublished - 1 Jan 2013

Keywords

  • Multiplexing (OFDM)
  • Optical wireless communication (OW)
  • Orthogonal frequency division
  • Visible light communication (VLC)

Fingerprint Dive into the research topics of 'Adaptive scheme for maintaining the performance of the in-home white-LED visible light wireless communications using OFDM'. Together they form a unique fingerprint.

  • Cite this