Control overhead reduction method employing frequency correlation for MU-MIMO-OFDM THP with user scheduling

Yukiko Shimbo, Nobuhiro Hiruma, Hirofumi Suganuma, Fumiaki Maehara

    研究成果: Conference contribution

    1 引用 (Scopus)

    抄録

    This paper proposes a method for control overhead reduction by employing frequency correlation for MU-MIMO-OFDM THP with semi-orthogonal user selection (SUS). The feature of the proposed approach is to reduce the control overhead generated by subcarrier-based user selection results by limiting the sub-carriers according to the frequency correlation. The motivation behind this approach comes from the fact that the same user selection results could be applicable to neighboring subcarriers by increasing the frequency correlation. A simple theoretical formula containing a parameter for a power delay profile is adopted to facilitate the derivation of the frequency correlation. Frequency correlation is achieved by generating the power delay profile by averaging the channel state information (CSI) over multiple transmit antennas with the aid of MU-MIMO. Moreover, our efficient method, which ensures the benefit of ordering by reusing the SUS results for the ordering calculation, is adopted to coordinate SUS and THP ordering. The effectiveness of the proposed method is demonstrated in terms of both system capacity and control overhead reduction by comparing it with the subcarrier-based approach.

    元の言語English
    ホスト出版物のタイトル2018 IEEE 87th Vehicular Technology Conference, VTC Spring 2018 - Proceedings
    出版者Institute of Electrical and Electronics Engineers Inc.
    ページ1-5
    ページ数5
    2018-June
    ISBN(電子版)9781538663554
    DOI
    出版物ステータスPublished - 2018 7 20
    イベント87th IEEE Vehicular Technology Conference, VTC Spring 2018 - Porto, Portugal
    継続期間: 2018 6 32018 6 6

    Other

    Other87th IEEE Vehicular Technology Conference, VTC Spring 2018
    Portugal
    Porto
    期間18/6/318/6/6

    Fingerprint

    MIMO-OFDM
    Reduction Method
    MIMO systems
    Orthogonal frequency division multiplexing
    Scheduling
    Channel state information
    Antennas
    Channel State Information
    Multiple-input multiple-output (MIMO)
    Averaging
    Antenna
    Limiting

    ASJC Scopus subject areas

    • Computer Science Applications
    • Electrical and Electronic Engineering
    • Applied Mathematics

    これを引用

    Shimbo, Y., Hiruma, N., Suganuma, H., & Maehara, F. (2018). Control overhead reduction method employing frequency correlation for MU-MIMO-OFDM THP with user scheduling. : 2018 IEEE 87th Vehicular Technology Conference, VTC Spring 2018 - Proceedings (巻 2018-June, pp. 1-5). Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/VTCSpring.2018.8417814

    Control overhead reduction method employing frequency correlation for MU-MIMO-OFDM THP with user scheduling. / Shimbo, Yukiko; Hiruma, Nobuhiro; Suganuma, Hirofumi; Maehara, Fumiaki.

    2018 IEEE 87th Vehicular Technology Conference, VTC Spring 2018 - Proceedings. 巻 2018-June Institute of Electrical and Electronics Engineers Inc., 2018. p. 1-5.

    研究成果: Conference contribution

    Shimbo, Y, Hiruma, N, Suganuma, H & Maehara, F 2018, Control overhead reduction method employing frequency correlation for MU-MIMO-OFDM THP with user scheduling. : 2018 IEEE 87th Vehicular Technology Conference, VTC Spring 2018 - Proceedings. 巻. 2018-June, Institute of Electrical and Electronics Engineers Inc., pp. 1-5, 87th IEEE Vehicular Technology Conference, VTC Spring 2018, Porto, Portugal, 18/6/3. https://doi.org/10.1109/VTCSpring.2018.8417814
    Shimbo Y, Hiruma N, Suganuma H, Maehara F. Control overhead reduction method employing frequency correlation for MU-MIMO-OFDM THP with user scheduling. : 2018 IEEE 87th Vehicular Technology Conference, VTC Spring 2018 - Proceedings. 巻 2018-June. Institute of Electrical and Electronics Engineers Inc. 2018. p. 1-5 https://doi.org/10.1109/VTCSpring.2018.8417814
    Shimbo, Yukiko ; Hiruma, Nobuhiro ; Suganuma, Hirofumi ; Maehara, Fumiaki. / Control overhead reduction method employing frequency correlation for MU-MIMO-OFDM THP with user scheduling. 2018 IEEE 87th Vehicular Technology Conference, VTC Spring 2018 - Proceedings. 巻 2018-June Institute of Electrical and Electronics Engineers Inc., 2018. pp. 1-5
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