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

1 被引用数 (Scopus)

抄録

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.

本文言語English
ホスト出版物のタイトル2018 IEEE 88th Vehicular Technology Conference, VTC-Fall 2018 - Proceedings
出版社Institute of Electrical and Electronics Engineers Inc.
ISBN(電子版)9781538663585
DOI
出版ステータスPublished - 2018 7 2
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(印刷版)1550-2252

Conference

Conference88th IEEE Vehicular Technology Conference, VTC-Fall 2018
国/地域United States
CityChicago
Period18/8/2718/8/30

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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