Added Pilot Semi-Blind Iterative Channel Estimation for OFDM Packet Transmission

Naoto Ohkubo, Tomoaki Ohtsuki

研究成果: Paper査読

9 被引用数 (Scopus)


Orthogonal Frequency Division Multiplexing (OFDM) is a promising technique for achieving high bit-rate transmission in radio environments. Various techniques to estimate channel attenuation have been proposed for OFDM transmission. In these techniques, the added pilot semi-blind (APSB) channel estimation has been proposed, which does not require any additional bandwidth. For an OFDM packet transmission that includes preambles, it is difficult to track the channel variation of the latter of packet due to time-varying channels in fast fading environments. We expect that channel estimation is improved by applying the APSB channel estimation technique to the last symbols of packets. In this paper, we propose an OFDM packet transmission system with APSB channel estimation technique to track the variation of channel attenuations. We show that the proposed system can track the channel variation and achieve better performance than the conventional system in fast fading channels.

出版ステータスPublished - 2003 12月 1
イベントIEEE Global Telecommunications Conference GLOBECOM'03 - San Francisco, CA, United States
継続期間: 2003 12月 12003 12月 5


OtherIEEE Global Telecommunications Conference GLOBECOM'03
国/地域United States
CitySan Francisco, CA

ASJC Scopus subject areas

  • 電子工学および電気工学
  • 地球変動および惑星変動


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