Ultra-densification of radio access network (RAN) is essential to efficiently handle ever-increasing mobile data traffic. In ultra-dense RAN consisting of a large number of distributed antennas and users, the computational complexity of large-scale multi-user MIMO (MU-MIMO) becomes prohibitively high. To solve this complexity problem, users can be grouped into several clusters and cluster-wise MU-MIMO is carried out using the same radio resource simultaneously. However, strong inter-cluster interference is produced. Furthermore, distributed radio resource management (RRM) is desirable to make possible highly scalable and flexible deployment of ultra-dense RAN. However, in return, inter-cell interference is produced. Recently, in order to mitigate these interferences, the authors presented the concept of enhanced interference coordination (eIC) for ultra-dense RAN. In this paper, we describe the eIC using multi-layered user clustering and evaluate the user capacity, the sum capacity, and the fairness among users by computer simulation to show the effectiveness of the proposed eIC.


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    Titel :

    Performance of Enhanced Interference Coordination Using Multi-layered Clustering for 5G Advanced Ultra-dense RAN


    Beteiligte:
    Takahashi, Ryo (Autor:in) / Matsuo, Hidenori (Autor:in) / Adachi, Fumiyuki (Autor:in)


    Erscheinungsdatum :

    01.04.2021


    Format / Umfang :

    2289043 byte





    Medientyp :

    Aufsatz (Konferenz)


    Format :

    Elektronische Ressource


    Sprache :

    Englisch



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