Precoder Design Algorithm for Hybrid MIMO System with Discrete Phase Shifters and D/A Converters

Daichi Tamate, Yukitoshi Sanada

    研究成果: Conference contribution

    抜粋

    In this paper, a precoder design algorithm using Gibbs sampling for hybrid multiple-input multiple-output (MIMO) systems is proposed. The hybrid MIMO systems are expected to be implemented in high frequency bands. To reduce power consumption and increase the bandwidth of a transmit signal, the number of phase shifters and the number of quatntization levels in digital-analog (D/A) converters have to be limited. A baseband precoder needs to take the effect of quantization into account. Owing to the quantization, it is difficult for a conventional precoder design algorithm with orthogonal matching pursuit (OMP) to reach the optimal solution. On the other hand, the proposed precoder design algorithm using Gibbs sampling is robust to quantization errors. Numerical results obtained through computer simulation show that the proposed algorithm achieves spectral efficiency of 50 bit/s/Hz at a signal-to-noise ration of 20 dB for a quantization level of 24 on an independent Rayleigh fading channel.

    元の言語English
    ホスト出版物のタイトル2018 IEEE 88th Vehicular Technology Conference, VTC-Fall 2018 - Proceedings
    出版者Institute of Electrical and Electronics Engineers Inc.
    ISBN(電子版)9781538663585
    DOI
    出版物ステータスPublished - 2019 4 12
    イベント88th IEEE Vehicular Technology Conference, VTC-Fall 2018 - Chicago, United States
    継続期間: 2018 8 272018 8 30

    出版物シリーズ

    名前IEEE Vehicular Technology Conference
    2018-August
    ISSN(印刷物)1550-2252

    Conference

    Conference88th IEEE Vehicular Technology Conference, VTC-Fall 2018
    United States
    Chicago
    期間18/8/2718/8/30

    ASJC Scopus subject areas

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

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  • これを引用

    Tamate, D., & Sanada, Y. (2019). Precoder Design Algorithm for Hybrid MIMO System with Discrete Phase Shifters and D/A Converters. : 2018 IEEE 88th Vehicular Technology Conference, VTC-Fall 2018 - Proceedings [8690928] (IEEE Vehicular Technology Conference; 巻数 2018-August). Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/VTCFall.2018.8690928