A Study on Dynamic Antenna Clustering for Distributed MIMO Cooperative Transmission using Multi-user MMSE-SVD

Yuta Seki, Tomoyuki Saito, Fumiyuki Adachi

    Research output: Chapter in Book/Report/Conference proceedingConference contribution

    Abstract

    Distributed MIMO (multiple-input multiple-output) cooperative transmission can achieve a high link capacity by large-scale antennas which are spatially distributed over a macro-cell area. Authors have been studying a multi-user spatial multiplexing technique called the minimum mean square error filtering combined with singular value decomposition (MMSE-SVD). MU-MIMO processing requires prohibitively high computational complexity for a large number of antennas. The antenna clustering can reduce the computational complexity, however, this produces the inter-cluster interference (ICI) and degrades the transmission performance of a user equipment (UE) near the cluster boundary (namely, cluster-edge UE). In this paper, we propose a dynamic antenna clustering which changes periodically the cluster boundary in order to avoid always falling into the worst condition. The UE link capacities in the cases of static antenna clustering and dynamic antenna clustering is evaluated by computer simulation. It is shown that the proposed dynamic antenna clustering improves the cluster-edge UE link capacity. The median value of the link capacity is increased by about 1.6 times compared to the static antenna clustering.

    Original languageEnglish
    Title of host publication2018 21st International Symposium on Wireless Personal Multimedia Communications, WPMC 2018
    PublisherIEEE Computer Society
    Pages64-68
    Number of pages5
    ISBN (Electronic)9781538657577
    DOIs
    Publication statusPublished - 2018 Jul 2
    Event21st International Symposium on Wireless Personal Multimedia Communications, WPMC 2018 - Chiang Rai, Thailand
    Duration: 2018 Nov 252018 Nov 28

    Publication series

    NameInternational Symposium on Wireless Personal Multimedia Communications, WPMC
    Volume2018-November
    ISSN (Print)1347-6890

    Conference

    Conference21st International Symposium on Wireless Personal Multimedia Communications, WPMC 2018
    Country/TerritoryThailand
    CityChiang Rai
    Period18/11/2518/11/28

    Keywords

    • MMSE-SVD
    • MU-MIMO
    • OFDM downlink
    • distributed antenna
    • dynamic antenna clustering

    ASJC Scopus subject areas

    • Computer Networks and Communications
    • Computer Science Applications
    • Human-Computer Interaction

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