DocumentCode
1480107
Title
Design of user codes in QS-CDMA systems for MUI elimination in unknown multipath
Author
Scaglione, Anna ; Giannakis, Georgios B.
Author_Institution
infocom Dept., Rome Univ., Italy
Volume
3
Issue
2
fYear
1999
fDate
2/1/1999 12:00:00 AM
Firstpage
25
Lastpage
27
Abstract
Low-complexity quasi synchronous CDMA systems are derived for eliminating multi-user interference (MUI) completely in the presence of unknown and even rapidly varying multipath. They rely on judiciously designed precomputable user codes and offer a generalization of orthogonal frequency division multiplexing, especially valuable when carrier frequency errors and Doppler effects are present.
Keywords
Doppler effect; OFDM modulation; code division multiple access; codes; computational complexity; interference suppression; multipath channels; synchronisation; transceivers; Doppler effect; MUI elimination; QS-CDMA systems; carrier frequency errors; low-complexity quasi synchronous CDMA systems; multi-user interference; orthogonal frequency division multiplexing; unknown multipath; user codes; Adaptive filters; Delay; Doppler effect; Filtering; Modeling; Multiaccess communication; Multipath channels; OFDM; Wireless communication;
fLanguage
English
Journal_Title
Communications Letters, IEEE
Publisher
ieee
ISSN
1089-7798
Type
jour
DOI
10.1109/4234.749351
Filename
749351
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