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Single-antenna blind receiver for multiuser detection in unknown correlated noise

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2 Author(s)
Buzzi, S. ; DAEMI, Cassino Univ., Italy ; Poor, H.V.

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

Published in:

Vehicular Technology, IEEE Transactions on  (Volume:51 ,  Issue: 1 )

Date of Publication:

Jan 2002

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