Efficient Ordering Calculation Method Using Frequency Correlation for MU-MIMO-OFDM THP

Nobuhiro Hiruma, Tomoki Maruko, Hiromichi Tomeba, Takashi Onodera, Fumiaki Maehara

    研究成果: Conference contribution

    抄録

    This paper proposes an efficient ordering calculation method employing frequency correlation in multiuser multiple-input multiple-output orthogonal frequency division multiplexing (MU-MIMO-OFDM) Tomlinson Harashima Precoding (THP). Although the ordering process is effective to improve the transmission performance of THP, it requires a large amount of computational effort due to sub-carrier-based operation. To cope with this problem, the proposed method thins out the sub-carriers conducting the ordering process based on the frequency correlation. The basic idea behind this proposal is that the ordering results are considered to be the same among the neighboring sub-carriers in a relatively small delay spread. Moreover, the frequency correlation is derived from a delay profile which can be determined by multiple transmit antennas. The effectiveness of the proposed method is demonstrated in terms of calculation cost and the bit error rate (BER) by comparing with the traditional MU-MIMO-OFDM THP without thinning.

    本文言語English
    ホスト出版物のタイトル2017 IEEE 85th Vehicular Technology Conference, VTC Spring 2017 - Proceedings
    出版社Institute of Electrical and Electronics Engineers Inc.
    2017-June
    ISBN(電子版)9781509059324
    DOI
    出版ステータスPublished - 2017 11 14
    イベント85th IEEE Vehicular Technology Conference, VTC Spring 2017 - Sydney, Australia
    継続期間: 2017 6 42017 6 7

    Other

    Other85th IEEE Vehicular Technology Conference, VTC Spring 2017
    CountryAustralia
    CitySydney
    Period17/6/417/6/7

    ASJC Scopus subject areas

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

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