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

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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.

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Authors and Affiliations

  1. Department of Photonics, Institute of Electro-Optical Engineering, National Chiao Tung University, Hsinchu, 30010, Taiwan

    Y. F. Liu & C. W. Chow

  2. Information and Communications Research Laboratories, Industrial Technology Research Institute (ITRI), Chutung, Hsinchu, 31040, Taiwan

    Y. F. Liu, C. H. Yeh & Y. L. Liu

  3. Graduate Institute of Applied Science and Engineering, Fu Jen Catholic University, New Taipei, 24205, Taiwan

    C. H. Yeh

Authors
  1. Y. F. Liu
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  2. C. H. Yeh
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  3. C. W. Chow
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  4. Y. L. Liu
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Correspondence to C. H. Yeh.

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Liu, Y.F., Yeh, C.H., Chow, C.W. et al. AC-based phosphor LED visible light communication by utilizing novel signal modulation. Opt Quant Electron 45, 1057–1061 (2013). https://doi.org/10.1007/s11082-013-9716-y

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  • DOI: https://doi.org/10.1007/s11082-013-9716-y

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