MIMO Zero-Forcing Equalizer for BFDM/OQAM Systems in Time-Frequency Dispersive Channels(<Special Section>Wide Band Systems)
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概要
- 論文の詳細を見る
Pulse-shaping OFDM is well-known that it performs well in a mobile environment compared with conventional OFDM. However, in a highly mobile environment intersymbol and intercarrier interferences (ISI/ICIs) increase and can no longer be neglected. These ISI/ICIs deteriorate the performance of the systems. Proper channel equalization is needed for further improvement of the systems. In this paper, a more general case, namely Biorthogonal Frequency Division System based on Offset QAM (BFDM/OQAM) is considered. We propose a multi-input multi-output (MIMO) transversal filter to equalize the time-frequency dispersive channel. Tap weights are calculated using the zero-forcing (ZF) algorithm. We also propose maximum-likelihood channel estimator and its low-complexity version. The proposed system can significantly improve the performance of BFDM/OQAM systems in the highly mobile environment.
- 社団法人電子情報通信学会の論文
- 2006-11-01
著者
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Yamazato T
Nagoya Univ. Nagoya Jpn
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Yamazato Takaya
Nagoya University
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Yamazato Takaya
Faculty Of Science And Technology Keio University:nagoya University
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Okada Hiraku
Center For Transdisciplinary Research Niigata University
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Yamazato Takaya
School Of Engineering Nagoya University
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KATAYAMA Masaaki
EcoTopia Science Institute, Nagoya University
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MONGOL Bayarpurev
Department of Electrical Engineering and Computer Science, Graduate School of Engineering, Nagoya Un
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YAMAZATO Takaya
Eco Topia Science Institute, Nagoya University
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KATAYAMA Masaaki
Eco Topia Science Institute, Nagoya University
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Katayama Masaaki
Nagoya Univ. Nagoya‐shi Jpn
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Katayama M
Ecotopia Science Institute Nagoya University
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Mongol Bayarpurev
Department Of Electrical Engineering And Computer Science Graduate School Of Engineering Nagoya Univ
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