In this paper, we analyze the performance of the fractional pilot reuse (FPR) scheme with pilot contamination mitigation in massive multiple-input multiple-output (MIMO) system. In FPR, users are classified into the cell- center and the cell-edge ones according to their signal-to- interference-plus-noise ratios (SINRs) at the receiver side. Then, the cell- edge users with low SINRs in different cells use different pilots to avoid strong interference from adjacent cells while the cell- center users with high SINRs in different cells reuse the same pilots to improve the pilot efficiency. In order to identify the cell- center users and the cell-edge ones, we first express the SINR as the function of the distance between the user and the base station (BS) and then find the relationship between the network throughput and the distance threshold. The optimal distance threshold is found to maximize the network throughput. The analytical and simulation results demonstrate advantages of the proposed scheme over conventional ones.


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    Titel :

    Analysis and Optimization of Fractional Pilot Reusein Massive MIMO Systems


    Beteiligte:
    Fan, Jiancun (Autor:in) / Li, Weiqi (Autor:in)


    Erscheinungsdatum :

    01.06.2017


    Format / Umfang :

    197789 byte




    Medientyp :

    Aufsatz (Konferenz)


    Format :

    Elektronische Ressource


    Sprache :

    Englisch



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