Title :
A semi-blind LMMSE multiuser detector for DS-CDMA using a subspace noise estimator
Author :
Overbye, David ; Priemer, Roland
Author_Institution :
Illinois Univ., Chicago, IL, USA
Abstract :
In this paper a semi-blind LMMSE multiuser detector is given for use in multipath DS-CDMA communication systems. The detector uses a subspace-based method of estimating channel noise. Due to its computational simplicity, the detector is suitable for use in either the downlink or the uplink of a DS-CDMA system. This detector gives superior performance over both the conventional single user detector and the LMMSE detector with no knowledge of the noise power
Keywords :
code division multiple access; interference (signal); mean square error methods; multiuser channels; signal detection; spread spectrum communication; DS-CDMA; channel noise; downlink; multipath communication systems; semi-blind LMMSE multiuser detector; subspace noise estimator; uplink; Detectors; Downlink; Fading; Frequency; Interference suppression; Military communication; Multiaccess communication; Multipath channels; RAKE receivers; Statistics;
Conference_Titel :
Circuits and Systems, 2001. MWSCAS 2001. Proceedings of the 44th IEEE 2001 Midwest Symposium on
Conference_Location :
Dayton, OH
Print_ISBN :
0-7803-7150-X
DOI :
10.1109/MWSCAS.2001.986297
