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Optimization and design of a diffuse optical wireless sensor network.

Thomas Kamalakis, Zabih Ghassemlooy, Stanislav Zvanovec

    Applied Optics
    |October 18, 2022
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    Summary
    This summary is machine-generated.

    This study introduces an optical wireless sensor network (WSN) using light-emitting diodes. Diffuse light improves indoor link availability and battery life, making optical WSNs a viable option for massive machine-type communication (mMTC).

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    Area of Science:

    • Wireless communication
    • Optical networking
    • Sensor networks

    Background:

    • Wireless sensor networks (WSNs) are integral to massive machine-type communication (mMTC) in 5G/6G networks.
    • Current WSNs collect diverse environmental and biometric data.
    • Optical WSNs offer a potential alternative for data transmission.

    Purpose of the Study:

    • To optimize and design an optical WSN using light-emitting diode transmitters.
    • To evaluate the impact of line-of-sight and diffuse-light propagation on indoor WSN performance.
    • To determine the performance limits of optical WSNs for mMTC applications.

    Main Methods:

    • Developed an optical WSN model with multiple battery-powered sensor nodes.
    • Incorporated both line-of-sight and diffuse-light propagation models.
    • Utilized a machine-learning genetic algorithm for optimizing optical wireless link parameters.

    Main Results:

    • Diffuse radiation enhances link availability in indoor scenarios with shadowing.
    • Diffuse light propagation contributes to extended battery life for sensor nodes.
    • The genetic algorithm successfully identified system performance limits.

    Conclusions:

    • Optical WSNs are a feasible wireless solution for mMTC scenarios.
    • Integrating diffuse light propagation significantly improves WSN reliability and efficiency.
    • The proposed optimization approach validates the potential of optical WSNs.