Adaptive Decision Feedback Channel Estimation with Periodic Phase Correction for Frequency-Domain Equalization in DS-CDMA Mobile Radios(Transmission Systems and Transmission Equipment for Communications)
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概要
- 論文の詳細を見る
Recently, the decision feedback channel estimation based on the minimum mean square error criterion (DF-MMSE-CE) using a fixed DF filter coefficient has been proposed to improve the channel estimation accuracy for DS-CDMA with frequency-domain equalization (FDE). In this paper, we propose adaptive DF (ADF)-MMSE-CE, in which the DF filter coefficient is adapted to changing channel conditions based on a recursive least square (RLS) algorithm. Furthermore, the channel estimate is phase corrected upon the reception of the periodically inserted pilot chip blocks. The average BER performance of DS-CDMA with MMSE-FDE using ADF-MMSE-CE is evaluated by computer simulation in a frequency-selective Rayleigh fading channel and the simulation results show that our proposed scheme is very robust against fast fading.
- 社団法人電子情報通信学会の論文
- 2007-08-01
著者
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Adachi Fumiyuki
Dept. of Electrical and Communication Engineering, Graduate School of Engineering, Tohoku University
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Adachi Fumiyuki
Dept. Of Electrical And Communication Engineering Graduate School Of Engineering Tohoku University
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Liu Le
Dept. Of Electrical And Communication Engineering Tohoku University
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Liu Le
Dept. Of Electrical And Communication Engineering Graduate School Of Engineering Tohoku University
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Adachi Fumiyuki
Dept. Electrical And Communication Engineering Graduate School Of Engineering Tohoku University
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Adachi Fumiyuki
Department Of Electrical And Communication Engineering Graduate School Of Engineering Tohoku Univers
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Adachi Fumiyuki
Department Of Electrical And Communication Engineering Graduate School Of Engineering Tohoku Univers
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Adachi Fumiyuki
Department Of Electorical Communication Engineering Graduate School Of Engineering Tohoku University
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Adachi Fumiyuki
Department Of Electrical And Communication Engineering Graduate School Of Engineering Tohoku Univers
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Adachi Fumiyuki
Tohoku University Sendai Japan
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Adachi Fumiyuki
Department Of Electrical And Communication Engineering Graduate School Of Engineering Tohoku Univers
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Adachi Fumiyuki
Dept Of Electrical And Communications Engineering Tohoku University
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Adachi Fumiyuki
Department Of Electrical And Communications Engineering Graduate School Of Engineering Tohoku Univer
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Adachi Fumiyuki
Dept. Electrical And Communication Engineering Graduate School Of Engineering
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