Visible-light communication multiple-input multiple-output technology for indoor lighting, communication, and positioning

Yang Liu*, Chin Wei Hsu, Hung Yu Chen, Kevin Liang, Chi-Wai Chow, Chien Hung Yeh

*Corresponding author for this work

Research output: Contribution to journalArticle

12 Scopus citations

Abstract

Visible-light communication (VLC) is license free and electromagnetic-interference free; it thus can be deployed in radio-frequency forbidden areas. The light-emitting diode (LED) system providing simultaneously lighting, VLC, and positioning is highly desirable for providing real-time tracking, monitoring, and navigating with very little extra cost. We propose and demonstrate a multiple-input multiple-output (MIMO) VLC-positioning system using white-light LEDs. Our scheme is based on MIMO to provide both position and VLC. Experimental results show that the proposed MIMO VLC system can achieve a bit-error rate of 10-10, while the positioning errors are within 1 cm. Numerical analyses are also performed, showing the positioning error can be measured within 1 cm. Further analysis of tilting angle of the receiver is also presented.

Original languageEnglish
Article number120502
JournalOptical Engineering
Volume54
Issue number12
DOIs
StatePublished - 1 Dec 2015

Keywords

  • positioning
  • Visible-light communication

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