Achieving the promising gains of massive multiple- input multiple-output (MIMO) relies on accurate channel state information. In this paper, results from detailed time-dynamic system simulations of reciprocity based massive MIMO systems in the 3GPP 3D scenarios are presented. Downlink (DL) multi- user MIMO performance is found to be sensitive to errors in channel estimates obtained from uplink (UL) sounding. Inter-cell coordination of UL sounding sequences by applying a comb reuse pattern in an orthogonal frequency-division multiplexing based system is shown to significantly improve DL system performance. With a comb reuse 1/3 or 1/9 pattern, results show up to 75\% increased DL non-full buffer traffic capacity, thanks to reduced inter-cell interference in the channel estimation.


    Zugriff

    Zugriff prüfen

    Verfügbarkeit in meiner Bibliothek prüfen

    Bestellung bei Subito €


    Exportieren, teilen und zitieren



    Titel :

    Massive MIMO Performance with Pilot Reuse


    Beteiligte:


    Erscheinungsdatum :

    2016-09-01


    Format / Umfang :

    512591 byte




    Medientyp :

    Aufsatz (Konferenz)


    Format :

    Elektronische Ressource


    Sprache :

    Englisch



    Dynamic Pilot Reuse in Distributed Massive MIMO Systems

    Raoof, Ramiz / Pan, Cunhua / Zhu, Huiling et al. | IEEE | 2017


    Fractional Pilot Reuse with Vertical Sectorization in Massive MIMO Systems

    Fan, Jiancun / Li, Weiqi / Zhang, Ying et al. | IEEE | 2017


    Improved Soft Pilot Reuse Combined with Time-Shifted Pilots in Massive MIMO Systems

    Jin, Xin / Wang, Jiangtao / Wang, Yongchao | IEEE | 2018


    Uplink Pilot Reuse for Multicell Mu-Massive MIMO in Physical Channel Model

    Zhang, Da / Xie, Gang / Gao, Jinchun | IEEE | 2019