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Single-carrier 220-Gbit/s sub-THz wireless transmission over 214 m using a photonics-based system.

Keisuke Maekawa, Toki Yoshioka, Tomoya Nakashita

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    This summary is machine-generated.

    Researchers achieved a 220-Gbit/s wireless link using a 300-GHz photonics system. This breakthrough enables high-speed wireless backhaul communications for future 6G networks.

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    Area of Science:

    • Terahertz (THz) communications
    • Photonics-based wireless systems
    • Digital signal processing (DSP) for wireless

    Background:

    • High-capacity wireless communication is crucial for future network demands.
    • Existing wireless technologies face limitations in bandwidth and speed.
    • Terahertz band offers vast potential for ultra-high-speed data transmission.

    Purpose of the Study:

    • To demonstrate a single-carrier wireless link at 220 Gbit/s.
    • To achieve this speed over a significant distance (214 m).
    • To validate the feasibility of photonics-based systems for future wireless backhaul.

    Main Methods:

    • Utilized a photonics-based system operating in the 300 GHz band.
    • Incorporated on-line digital signal processing (DSP).
    • Optimized the system with a low-noise two-tone laser and leveraged antenna Fresnel region effects.

    Main Results:

    • Successfully demonstrated a single-carrier 220 Gbit/s wireless link.
    • Achieved transmission over a distance of 214 meters.
    • Maintained performance within the hard-decision forward error correction (HD-FEC) limit.

    Conclusions:

    • The developed system represents a significant advancement in wireless communication technology.
    • This photonics-based approach offers a low-cost solution for future backhaul networks.
    • The technology is a promising candidate for sixth-generation (6G) wireless systems.