Asynchronous, Decentralized DS-CDMA Using Feedback-Controlled Spreading Sequences for Time-Dispersive Channels
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概要
- 論文の詳細を見る
We propose a novel asynchronous direct-sequence code-division multiple access (DS-CDMA) using feedback-controlled spreading sequences (FCSSs) (FCSS/DS-CDMA). At the receiver of FCSS/DS-CDMA, the code-orthogonalizing filter (COF) produces a spreading sequence, and the receiver returns the spreading sequence to the transmitter. Then the transmitter uses the spreading sequence as its updated version. The performance of FCSS/DS-CDMA is evaluated over time-dispersive channels. The results indicate that FCSS/DS-CDMA greatly suppresses both the intersymbol interference (ISI) and multiple access interference (MAI) over time-invariant channels. FCSS/DS-CDMA is applicable to the decentralized multiple access.
- 2008-01-01
著者
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Hamamura Masanori
Graduate School Of Engineering Kochi University Of Technology
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CHIBA Kazuki
Department of Engineering, Kochi University of Technology
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MIYATAKE Teruhiko
Graduate School of Engineering, Kochi University of Technology
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Chiba Kazuki
Kochi Univ. Technol. Kami‐shi Jpn
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Chiba Kazuki
Department Of Engineering Kochi University Of Technology
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Miyatake Teruhiko
Graduate School Of Engineering Kochi University Of Technology
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Tachikawa Shin'ichi
Department Of Electrical Engineering Nagaoka University Of Technology
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HAMAMURA Masanori
Graduate School of Engineering, Kochi University of Technology
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