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Multiphysics coupled chaotic model and path selection algorithm optimization for UVLC.

Xiangyu Liu, Zhenhan Xu, Song Song

    Optics Express
    |December 19, 2025
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    Summary
    This summary is machine-generated.

    This study introduces a novel chaotic model and path selection for underwater visible light communication (UVLC). The new method enhances UVLC system performance in marine applications.

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    Area of Science:

    • Optical Engineering
    • Marine Technology
    • Communication Systems

    Background:

    • Underwater visible light communication (UVLC) is crucial for marine exploration and monitoring.
    • Current UVLC systems face limitations with static models and fixed-path algorithms.
    • Challenges include multipath and turbulence effects impacting signal integrity.

    Purpose of the Study:

    • To propose a multiphysical coupling chaotic model and an optimized path selection algorithm for UVLC systems.
    • To analyze UVLC system attenuation characteristics by coupling multipath and turbulence effects.
    • To develop a dynamically adaptive path selection algorithm to avoid local optima.

    Main Methods:

    • Developed a multiphysical coupling chaotic model integrating multipath and turbulence effects.
    • Constructed a dynamically adaptive path selection algorithm (Improved-A*) using chaotic theory.
    • Evaluated system performance through experimental analysis of attenuation and signal distribution.

    Main Results:

    • Achieved a joint attenuation parameter error below 3.2% and a received light intensity distribution divergence of 0.12.
    • Demonstrated a 78.6% handover success rate for UVLC systems.
    • The chaotic algorithm maintained performance even at a 5.3 × 10^-5 bit error rate (BER).

    Conclusions:

    • The proposed multiphysical coupling chaotic model accurately analyzes UVLC system attenuation.
    • The Improved-A* algorithm effectively enhances UVLC path selection and avoids local optima.
    • The developed approach significantly improves the reliability and performance of UVLC in marine environments.