Title :
Blind and group-blind multiuser detection in colored noise
Author :
Wang, Xiaodong ; Høst-Madsen, Anders
Author_Institution :
Dept. of Electr. Eng., Texas A&M Univ., College Station, TX, USA
Abstract :
The problem of adaptive suppression of both multiple-access interference (MAI) and intersymbol interference (ISI) in a dispersive CDMA channel is considered. A subspace-based group-blind technique for this purpose is developed, which blindly suppresses the interfering signals from other cells, while jointly detects the signals within the cell of interest. This technique is extended to the situation where the channel ambient noise is correlated. In this case, two antennas are needed at the receiver for channel estimation and signal separation
Keywords :
adaptive signal detection; adaptive signal processing; cellular radio; code division multiple access; correlation methods; demodulation; dispersive channels; interference suppression; intersymbol interference; multiuser channels; noise; radio links; ISI; adaptive interference suppression; adaptive multiuser detection; blind multiuser detection; channel estimation; colored noise; correlated channel ambient noise; demodulation; dispersive CDMA channel; group-blind multiuser detection; intersymbol interference; multiple-access interference; other cell interfering signals; receiver antennas; signal separation; subspace-based group-blind technique; uplink; Channel estimation; Colored noise; Dispersion; Interference suppression; Intersymbol interference; Multiaccess communication; Multiple access interference; Multiuser detection; Receiving antennas; Signal detection;
Conference_Titel :
Wireless Communications and Networking Conference, 1999. WCNC. 1999 IEEE
Conference_Location :
New Orleans, LA
Print_ISBN :
0-7803-5668-3
DOI :
10.1109/WCNC.1999.796984
