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

fYear

1999

fDate

1999

Firstpage

1479

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;

fLanguage

English

Publisher

ieee

Conference_Titel

Wireless Communications and Networking Conference, 1999. WCNC. 1999 IEEE

Conference_Location

New Orleans, LA

ISSN

1525-3511

Print_ISBN

0-7803-5668-3

Type

conf

DOI

10.1109/WCNC.1999.796984

Filename

796984