Performance of turbo equalized double window cancellation and combining in large delay spread channels

Jun Hwan Lee, Tomoaki Ohtsuki, Masao Nakagawa

研究成果: Conference contribution

1 被引用数 (Scopus)

抄録

In the orthogonal frequency division multiplexing (OFDM) the multipath exceeding a guard interval (GI) is one of obstacles for high data rate transmission. For the purpose of the interference suppression the authors have proposed the canceller algorithm naming DWCC, where the canceller operation is based on decision feedback equalization (DFE), but the performance of the canceller is still subject to the frequency selectivity since the tentative symbol detection at the deep faded subcarriers could not be reliable. In this paper turbo equalized double window cancellation and combining (TE-DWCC) is proposed. Throughout the paper, it is found that the error rate performance of TE-DWCC depends on how to incorporate the channel decoding gain from turbo equalization into DWCC. In addition, it is also shown that TE-DWCC is more compatible with the hard decision feedback (HDF) rather than the soft decision feedback (SDF) due to the ICI elimination method. Finally, by varying interference level, code rate, and decision feedback type, the performances of TE-DWCC are compared with the conventional canceller that adopts turbo equalization in the exponentially distributed slow fading channel.

本文言語English
ホスト出版物のタイトル2009 IEEE 20th Personal, Indoor and Mobile Radio Communications Symposium, PIMRC 2009
出版社Institute of Electrical and Electronics Engineers Inc.
ページ226-230
ページ数5
ISBN(印刷版)9781424451234
DOI
出版ステータスPublished - 2009
イベント2009 IEEE 20th Personal, Indoor and Mobile Radio Communications Symposium, PIMRC 2009 - Tokyo, Japan
継続期間: 2009 9 132009 9 16

出版物シリーズ

名前IEEE International Symposium on Personal, Indoor and Mobile Radio Communications, PIMRC

Other

Other2009 IEEE 20th Personal, Indoor and Mobile Radio Communications Symposium, PIMRC 2009
国/地域Japan
CityTokyo
Period09/9/1309/9/16

ASJC Scopus subject areas

  • 電子工学および電気工学

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