Reconfigurable Intelligent Surfaces (RIS) are passive or semi-passive heterogeneous metasurfaces which consist of many tunable elements. RIS is gaining momentum as a promising new technology to enable transforming the propagation environment into controllable parameter. In this paper, we investigate the co-design of per-subcarrier power allocation matrices and multielement RIS phase shifts in downlink wideband MIMO transmission using 28 GHz frequency bands. Our contributions in improving RIS-aided links include (1) enhanced system modeling with pathloss and blockage modeling, and uniform rectangular array (URA) design, (2) design of gradient ascent co-design algorithm, and (3) asymptotic (Big O) complexity analysis of proposed algorithm and runtime complexity evaluation.


    Zugriff

    Zugriff prüfen

    Verfügbarkeit in meiner Bibliothek prüfen

    Bestellung bei Subito €


    Exportieren, teilen und zitieren



    Titel :

    Spectral Efficiency optimization for mmWave Wideband MIMO RIS-assisted Communication


    Beteiligte:
    Nuti, Pooja (Autor:in) / Balti, Elyes (Autor:in) / Evans, Brian L. (Autor:in)


    Erscheinungsdatum :

    01.06.2022


    Format / Umfang :

    387833 byte





    Medientyp :

    Aufsatz (Konferenz)


    Format :

    Elektronische Ressource


    Sprache :

    Englisch




    Energy Efficiency in Relay-Assisted mmWave Cellular Networks

    Turgut, Esma / Gursoy, M. Cenk | IEEE | 2016


    mmWave massive MIMO vehicular communications

    Cheng, Xiang / Gao, Shijian / Yang, Liuqing | TIBKAT | 2023


    RIDNet Assisted cGAN Based Channel Estimation for One-Bit ADC mmWave MIMO Systems

    Karakoca, Erhan / Nayir, Hasan / Gorcin, Ali et al. | IEEE | 2023