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🏛️國立陽明交通大學機構典藏

Author: search.filters.author.Liu, Yen-LiangSubject: search.filters.subject.optical communications

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Now showing 1 - 2 of 2
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    Item type:Item,
    Adaptive filtering for white-light LED visible light communication
    (2017-01-01)
    Hsu, Chin-Wei
    ;
    Chen, Guan-Hong
    ;
    Wei, Liang-Yu
    ;
    Chow, Chi-Wai
    ;
    Lu, I-Cheng
    White-light phosphor-based light-emitting diode (LED) can be used to provide lighting and visible light communication (VLC) simultaneously. However, the long relaxation time of phosphor can reduce the modulation bandwidth and limit the VLC data rate. Recent VLC works focus on improving the LED modulation bandwidths. Here, we propose and demonstrate the use of adaptive Volterra filtering (AVF) to increase the data rate of a white-light LED VLC system. The detailed algorithm and implementation of the AVF for the VLC system have been discussed. Using our proposed electrical frontend circuit and the proposed AVF, a significant data rate enhancement to 700.68 Mbit/s is achieved after 1-m free-space transmission using a single white-light phosphor-based LED. (C) 2017 Society of Photo-Optical Instrumentation Engineers (SPIE)
  • Thumbnail Image
    Item type:Item,
    Adaptive filtering for white-light LED visible light communication
    (2017-01)
    Hsu, Chin-Wei
    ;
    Chen, Guan-Hong
    ;
    Wei, Liang-Yu
    ;
    Chow, Chi-Wai
    ;
    Lu, I-Cheng
    White-light phosphor-based light-emitting diode (LED) can be used to provide lighting and visible light communication (VLC) simultaneously. However, the long relaxation time of phosphor can reduce the modulation bandwidth and limit the VLC data rate. Recent VLC works focus on improving the LED modulation bandwidths. Here, we propose and demonstrate the use of adaptive Volterra filtering (AVF) to increase the data rate of a white-light LED VLC system. The detailed algorithm and implementation of the AVF for the VLC system have been discussed. Using our proposed electrical frontend circuit and the proposed AVF, a significant data rate enhancement to 700.68 Mbit/s is achieved after 1-m free-space transmission using a single white-light phosphor-based LED. (C) 2017 Society of Photo-Optical Instrumentation Engineers (SPIE)