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Transmission of Multiple Signals through an Optical Fiber Using Wavefront Shaping
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Lightweight multi-hop VLC using compression and data-dependent multiple pulse modulation.

Mohammad Abrar Shakil Sejan, Wan-Young Chung

    Optics Express
    |July 17, 2020
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    This study introduces data-dependent multiple pulse position modulation (DDMPPM) for efficient particulate matter (PM) data transfer via visible light communication (VLC). DDMPPM significantly reduces data frames and extends communication range for real-time environmental monitoring.

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    Area of Science:

    • Environmental Science
    • Optical Communications
    • Data Compression

    Background:

    • Particulate matter (PM) poses health risks due to its small diameter.
    • Real-time monitoring of PM requires efficient data transmission methods.
    • Visible Light Communication (VLC) offers a potential solution for data transfer.

    Purpose of the Study:

    • To develop and evaluate a novel method for real-time PM data transmission using VLC.
    • To reduce the time and power consumption associated with PM data communication.
    • To assess the performance of a new modulation technique for multi-hop VLC systems.

    Main Methods:

    • Data compression techniques were applied to reduce the size of PM data.
    • Data-dependent multiple pulse position modulation (DDMPPM) was employed for data transmission.
    • Practical experiments were conducted to evaluate DDMPPM performance in multi-hop VLC scenarios.

    Main Results:

    • DDMPPM demonstrated reduced frame utilization for transferring PM data compared to standard methods.
    • A total communication distance of 48 meters was achieved using DDMPPM in VLC.
    • The modulation technique proved effective for multi-hop communication.

    Conclusions:

    • DDMPPM is an efficient modulation technique for transmitting compressed PM data over VLC.
    • The method enhances communication efficiency in terms of data frames and distance.
    • This approach supports real-time environmental monitoring with improved performance.