HARQ throughput performance of training sequence aided SC-MIMO using reduced complexity ML block detection

Tetsuya Yamamoto, Fumiyuki Adachi

研究成果: Conference contribution

抄録

For high-speed packet access, hybrid automatic repeat request (HARQ) and multi-input multi-output (MIMO) multiplexing are indispensable techniques. Single-carrier (SC) MIMO block transmission using frequency-domain signal detection such as the frequency-domain linear detection based on the minimum mean square error criterion (MMSED) can improve the HARQ throughput performance over the frequency-selective fading channel. However, the performance improvement is limited due to not only an inter-antenna interference (IAI) but also an inter-symbol interference (ISI) resulting from a severe frequency-selective fading. In this paper, we propose to jointly use a training sequence (TS) aided SC block transmission and a near maximum likelihood (ML) block detection using QR decomposition and M-algorithm (QRM-MLBD) for SC-MIMO HARQ. It is shown, by computer simulation, that SC-MIMO using TS aided QRM-MLBD significantly improves the HARQ throughput performance compared to an often used cyclic prefix (CP) inserted SC-MIMO while significantly reducing the computational complexity. It is also shown that proposed TS aided QRM-MLBD achieves a significantly higher throughput than the MMSED particularly when higher level modulation is used.

本文言語English
ホスト出版物のタイトルIEEE 75th Vehicular Technology Conference, VTC Spring 2012 - Proceedings
DOI
出版ステータスPublished - 2012
外部発表はい
イベントIEEE 75th Vehicular Technology Conference, VTC Spring 2012 - Yokohama, Japan
継続期間: 2012 5月 62012 6月 9

出版物シリーズ

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

Other

OtherIEEE 75th Vehicular Technology Conference, VTC Spring 2012
国/地域Japan
CityYokohama
Period12/5/612/6/9

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

フィンガープリント

「HARQ throughput performance of training sequence aided SC-MIMO using reduced complexity ML block detection」の研究トピックを掘り下げます。これらがまとまってユニークなフィンガープリントを構成します。

引用スタイル