AC-based phosphor LED visible light communication by utilizing novel signal modulation

Y. F. Liu, C. H. Yeh*, Chi Wai Chow, Y. L. Liu

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

5 Scopus citations

Abstract

We propose and demonstrate a new AC-light emitting diode based visible light communication system, in which the message signal is up-converted to 400 kHz frequency band and combine with the 60 Hz AC-power from the outlet. A special design bias-tee circuit is first implemented to combine the message signal and the AC-power for minimizing the signal distortion. Thus, the spectra of both signals are well separated. A special design clock recovery is used to synchronize the AC-power with the message signal; hence the message signal can be correctly applied to the rectified AC-power cycle.

Original languageEnglish
Pages (from-to)1057-1061
Number of pages5
JournalOptical and Quantum Electronics
Volume45
Issue number10
DOIs
StatePublished - 1 Oct 2013

Keywords

  • AC LED
  • Networking
  • Visible light communication (VLC)

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