Frequency-averaged MMSE channel estimator for multicarrier transmission schemes

Yoshitaka Hara, Akinori Taira, Loïc Brunel, Thomas Sälzer

研究成果: Conference article査読

1 被引用数 (Scopus)

抄録

A new frequency-averaged MMSE estimator is proposed for multicarrier transmission schemes. The proposed estimator employs a new criterion of minimizing the mean square errors (MSE) over subcarriers, which provides an accurate channel estimation using a few pilot OFDM symbols without a priori channel knowledge. The proposed estimator has low complexity, since it uses high correlated adjacent subcarriers and neglects low correlated distant subcarriers. In the estimation process, intersymbol and intersubcarrier interference due to excess delay paths beyond guard interval is considered to achieve good performance. The simulation results showed that the frequency-averaged MMSE estimator can effectively reduce estimation error and keeps better performance than the conventional robust estimator in any channel conditions.

本文言語English
ページ(範囲)378-384
ページ数7
ジャーナルIEEE Vehicular Technology Conference
60
1
出版ステータスPublished - 2004 12月 1
イベント2004 IEEE 60th Vehicular Technology Conference, VTC2004-Fall: Wireless Technologies for Global Security - Los Angeles, CA, United States
継続期間: 2004 9月 262004 9月 29

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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