Latency of uplink non-orthogonal multiple access grant-free transmission with multiuser detection in base station

Show Shiono, Yukitoshi Sanada, Ryota Kimura, Hiroki Matsuda, Ryo Sawai

    研究成果: Conference contribution

    2 被引用数 (Scopus)

    抄録

    In this paper, the latency of non-orthogonal multiple access (NOMA) grant-free (GF) transmission in uplink is evaluated by link and system level simulations. In order to cancel interference among NOMA signals, multiuser detection (MUD) consisting of minimum mean square error demodulation followed by successive interference cancellation is applied. Retransmission happens only when a packet error occurs after serial interference cancellation (SIC). Therefore, the latency is reduced as compared to GF transmission without MUD. Numerical results obtained through system level simulation show that the application of MUD in uplink GF transmission improves the latency and increases the successful transmission rate without retransmission by a factor of about 3.0.

    本文言語English
    ホスト出版物のタイトル2019 IEEE 90th Vehicular Technology Conference, VTC 2019 Fall - Proceedings
    出版社Institute of Electrical and Electronics Engineers Inc.
    ISBN(電子版)9781728112206
    DOI
    出版ステータスPublished - 2019 9月
    イベント90th IEEE Vehicular Technology Conference, VTC 2019 Fall - Honolulu, United States
    継続期間: 2019 9月 222019 9月 25

    出版物シリーズ

    名前IEEE Vehicular Technology Conference
    2019-September
    ISSN(印刷版)1550-2252

    Conference

    Conference90th IEEE Vehicular Technology Conference, VTC 2019 Fall
    国/地域United States
    CityHonolulu
    Period19/9/2219/9/25

    ASJC Scopus subject areas

    • コンピュータ サイエンスの応用
    • 電子工学および電気工学
    • 応用数学

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