DocumentCode :
1264677
Title :
Single-antenna blind receiver for multiuser detection in unknown correlated noise
Author :
Buzzi, Stefano ; Poor, H. Vincent
Author_Institution :
DAEMI, Cassino Univ., Italy
Volume :
51
Issue :
1
fYear :
2002
fDate :
1/1/2002 12:00:00 AM
Firstpage :
209
Lastpage :
215
Abstract :
The problem of blind multiuser detection for direct-sequence code-division multiple-access systems operating over fading dispersive channels and in the presence of additive Gaussian noise with unknown temporal correlation function is considered. Such a problem has been addressed by Wang and Poor (1999) and solved by employing a receiver with two well-separated antennas, such that the noise is spatially uncorrelated. A new method, which enables blind multiuser detection in correlated noise with just one antenna (and thus can be implemented in mobile transceivers), is proposed here. The effectiveness of the new procedure is tested through computer simulations, and its performance is compared to that of the algorithms developed by Wang and Poor (1999) and Wang and Host-Madsen (1999). Numerical results demonstrate that the newly proposed method, while relying on halved hardware resources, incurs a performance loss of only a few decibels with respect to the two-antenna based procedures
Keywords :
Gaussian noise; code division multiple access; dispersive channels; fading channels; mobile antennas; mobile radio; multiuser channels; radio receivers; signal detection; spread spectrum communication; additive Gaussian noise; blind multiuser detection; direct-sequence code-division multiple-access systems; fading dispersive channels; mobile transceivers; multiuser detection; single-antenna blind receiver; temporal correlation function; unknown correlated noise; Additive noise; Dispersion; Fading; Gaussian noise; Mobile antennas; Multiaccess communication; Multiuser detection; Receiving antennas; Testing; Transceivers;
fLanguage :
English
Journal_Title :
Vehicular Technology, IEEE Transactions on
Publisher :
ieee
ISSN :
0018-9545
Type :
jour
DOI :
10.1109/25.992081
Filename :
992081
Link To Document :
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