This paper proposes a wireless ultra-wide area backhaul network consisting of fixed/mobile access points and a wireless backhaul switch with large scale array antenna for 5G mobile communication. We also consider a hybrid beamforming scheme for wireless ultra-wide area backhaul network. We designed an analog beamformer using the genetic algorithm for sum rate maximization, and conducted channel modeling for the proposed backhaul network by deterministic ray-tracing, which gives low path loss exponent of 3 due to the high position of wireless backhaul switch. In simulation results with zero-forcing (ZF) and maximum ratio transmission (MRT) precoding, we obtained the spectral efficiency over 900 bps/Hz with 99 downlink beams on 3 km radius cell, where 4 streams are supported per beam.


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    Titel :

    Hybrid Beamforming for Large Scale Array Antenna in Wireless Ultra-Wide Area Backhaul Network


    Beteiligte:
    Go, Seong-Won (Autor:in) / Park, Jong Keun (Autor:in) / Kim, Hyoji (Autor:in) / Yun, Dal-Jae (Autor:in) / Keum, Seung-Won (Autor:in) / Lee, Ju Yong (Autor:in) / Cho, Dong-Ho (Autor:in)


    Erscheinungsdatum :

    2017-06-01


    Format / Umfang :

    1900400 byte




    Medientyp :

    Aufsatz (Konferenz)


    Format :

    Elektronische Ressource


    Sprache :

    Englisch



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