Efficient combination of multi-user MIMO THP and user selection based on spatial orthogonality

Tomoki Maruko, Takahiro Yamaguchi, Tomoki Yoshimura, Hiromichi Tomeba, Takashi Onodera, Fumiaki Maehara

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

    8 Citations (Scopus)

    Abstract

    This paper proposes an efficient method for combing multi-user MIMO (MU-MIMO) employing Tomlinson Ha-rashima precoding (THP) with semiorthogonal user selection (SUS). Although the ordering of MU-MIMO THP and SUS create space diversity benefit and multi-user diversity benefit, respectively, a significant computational effort is required, which is expected to be relaxed while retaining the system level performance. The proposed method is inspired by the fact that the ordering calculations of MU-MIMO THP and SUS are commonly based on the spatial orthogonality. If that is the case, the result of the ordering of SUS is fully reused for the ordering of MU-MIMO THP, which can eliminate the calculation process of the ordering of MU-MIMO THP. The effectiveness of the proposed method is demonstrated in comparison with the traditional method with the ordering of MU-MIMO THP by means of computer simulations.

    Original languageEnglish
    Title of host publication2016 IEEE Wireless Communications and Networking Conference, WCNC 2016
    PublisherInstitute of Electrical and Electronics Engineers Inc.
    Volume2016-September
    ISBN (Electronic)9781467398145
    DOIs
    Publication statusPublished - 2016 Sep 12
    Event2016 IEEE Wireless Communications and Networking Conference, WCNC 2016 - Doha, Qatar
    Duration: 2016 Apr 32016 Apr 7

    Other

    Other2016 IEEE Wireless Communications and Networking Conference, WCNC 2016
    CountryQatar
    CityDoha
    Period16/4/316/4/7

    ASJC Scopus subject areas

    • Engineering(all)

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  • Cite this

    Maruko, T., Yamaguchi, T., Yoshimura, T., Tomeba, H., Onodera, T., & Maehara, F. (2016). Efficient combination of multi-user MIMO THP and user selection based on spatial orthogonality. In 2016 IEEE Wireless Communications and Networking Conference, WCNC 2016 (Vol. 2016-September). [7564777] Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/WCNC.2016.7564777