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Photonics millimeter wave bidirectional full-duplex communication based on polarization multiplexing.

Weiping Li, Jianjun Yu, Feng Wang

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    |December 20, 2022
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    Summary
    This summary is machine-generated.

    This study demonstrates a W-band communication system using photonics for high-capacity, long-distance, bidirectional full-duplex transmission. It achieves a record 473.8 Gbps·km data rate over 4600m using polarization multiplexing and advanced modulation.

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    Area of Science:

    • Wireless Communication
    • Optical Engineering
    • Signal Processing

    Background:

    • Millimeter-wave (mmWave) communication systems offer high bandwidth but face challenges in capacity and distance.
    • Bidirectional full-duplex communication is crucial for enhancing spectral efficiency.
    • Photonics-aided approaches can enable advanced features in wireless systems.

    Purpose of the Study:

    • To propose and experimentally implement a large-capacity, long-distance, W-band bidirectional full-duplex communication system.
    • To leverage polarization multiplexing for enhanced spectrum efficiency.
    • To achieve a record bit rate-distance product in W-band communication.

    Main Methods:

    • Utilized a photonics-aided architecture for a W-band bidirectional full-duplex system.
    • Employed polarization multiplexing with dual orthogonally polarized channels.
    • Transmitted 10-Gbaud probabilistically shaped 256-level quadrature-amplitude-modulation (PS-256QAM) signals.
    • Shared a single radio frequency (RF) carrier source for uplink and downlink.

    Main Results:

    • Achieved a bidirectional data rate of 103 Gbps over a 4600-m RF wireless distance.
    • Demonstrated a record-breaking bit rate-distance product of 473.8 Gbps·km for a photonics-aided bidirectional full-duplex system at W-band.
    • Maximized spectrum efficiency with 7.07 bit/symbol/Hz using PS-256QAM signals.

    Conclusions:

    • The proposed photonics-aided system successfully enables high-capacity, long-distance W-band bidirectional full-duplex communication.
    • Polarization multiplexing and advanced modulation schemes are effective in achieving high throughput and spectral efficiency.
    • This work sets a new benchmark for performance in W-band wireless communication systems.