Optical and Quantum Electronics

, Volume 45, Issue 10, pp 1057–1061 | Cite as

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



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.


AC LED Visible light communication (VLC) Networking 


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Copyright information

© Springer Science+Business Media New York 2013

Authors and Affiliations

  • Y. F. Liu
    • 1
    • 2
  • C. H. Yeh
    • 2
    • 3
  • C. W. Chow
    • 1
  • Y. L. Liu
    • 2
  1. 1.Department of Photonics, Institute of Electro-Optical EngineeringNational Chiao Tung UniversityHsinchuTaiwan
  2. 2.Information and Communications Research LaboratoriesIndustrial Technology Research Institute (ITRI)Chutung, HsinchuTaiwan
  3. 3.Graduate Institute of Applied Science and EngineeringFu Jen Catholic UniversityNew TaipeiTaiwan

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