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 Capacity enhancement of DS-CDMA synchronous channels by frequency-shift filtering
Please use this identifier to cite or link to this item http://hdl.handle.net/10773/7305

title: Capacity enhancement of DS-CDMA synchronous channels by frequency-shift filtering
authors: Gameiro, A.
keywords: 3G mobile communication
Bandwidth
Downlink
Filtering
Frequency
Interference cancellation
Multiaccess communication
Proposals
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
URI: http://hdl.handle.net/10773/7305
ISBN: 0-7803-6463-5
publisher version/DOI: dx.doi.org/10.1109/PIMRC.2000.881539
source: PIMRC 2000: IEEE International Symposium on Personal, Indoor and Mobile Radio Communications
appears in collectionsDETI - Comunicações

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