Blind multiuser detection using linear prediction

Author

Causey, Richard T. ; Barry, John R.

Author_Institution

Sch. of Electr. & Comput. Eng., Georgia Inst. of Technol., Atlanta, GA, USA

Volume

16

Issue

9

fYear

1998

fDate

12/1/1998 12:00:00 AM

Firstpage

1702

Lastpage

1710

Abstract

We propose a blind multiuser detection technique for array processing and code division multiple access (CDMA) systems that does not require knowledge of the array geometry or transmitter signature sequences. The technique has two key elements: an adaptive algorithm for separating the signal subspace from the noise subspace and an adaptive whitener based on linear prediction. The proposed algorithm offers low complexity, fast convergence, compatibility with shaped signal constellations, near-Wiener steady-state performance, and optimal near-far resistance

Keywords

adaptive signal detection; array signal processing; code division multiple access; direction-of-arrival estimation; noise; prediction theory; CDMA systems; adaptive algorithm; adaptive whitener; array processing; blind multiuser detection; code division multiple access; fast convergence; higher order statistics; linear prediction; low complexity algorithm; near-Wiener steady-state performance; noise subspace; optimal near-far resistance; projection techniques; second-order statistics; shaped signal constellations; signal subspace; Adaptive algorithm; Array signal processing; Constellation diagram; Convergence; Geometry; Multi-stage noise shaping; Multiaccess communication; Multiuser detection; Prediction algorithms; Transmitters;

fLanguage

English

Journal_Title

Selected Areas in Communications, IEEE Journal on

Publisher

ieee

ISSN

0733-8716

Type

jour

DOI

10.1109/49.737639

Filename

737639