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Title: Capacity enhancement of DS-CDMA synchronous channels by frequency-shift filtering
Author: Gameiro, A.
Keywords: 3G mobile communication
Interference cancellation
Multiaccess communication
Signal processing
Spread spectrum communication
Issue Date: 2000
Publisher: IEE
Abstract: We present a technique based on the cyclostationary properties of data signals that allows direct sequence spread-spectrum (DS-SS) code division multiple access (CDMA) system. The doubling is achieved with a moderate increase in bandwidth relatively to the original system or equivalently with a reduction when compared to the conventional approach of doubling the code length to duplicate the number of channels. The proposal makes use of two sets of DS-SS signals modulated by two carriers separated by a fraction of the the chip rate. The synchronous condition ensures cyclostationarity of the received signals, allowing the design of a receiver that explores the correlation between nonoverlapping frequency bands to cancel the inter-set interference
Peer review: yes
DOI: 10.1109/PIMRC.2000.881539
ISBN: 0-7803-6463-5
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Appears in Collections:DETI - Comunicações

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