MMSE multiuser detection for CDMA data networks

Author

Gu, Guoxiang ; He, Jianqiang

Author_Institution

Dept. of Electr. & Comput. Eng., Louisiana State Univ., Baton Rouge, LA, USA

Volume

1

fYear

2003

fDate

20-20 March 2003

Firstpage

332

Abstract

We consider minimum mean-squared-error (MMSE) design for multiuser detection in direct sequence/spread-spectrum (DS/SS) code division multiple access (CDMA) data networks. State-space model for the CDMA channel adopted. The multiuser detectors are shown to have the same form as the state estimators, and the MMSE detector to be equivalent to the Kalman filter after suitable augmentation with the mean-squared-error (MSE) preserved. The bit error rate (BER) is analyzed, and an illustrative example is worked out for the linear MMSE multiuser detector obtained in this paper.

Keywords

Kalman filters; cellular radio; code division multiple access; data communication; error statistics; least mean squares methods; multiuser detection; spread spectrum communication; state estimation; state-space methods; CDMA data networks; Kalman filter; MMSE multiuser detection; bit error rate; code division multiple access; direct sequence CDMA; minimum mean-squared-error; spread spectrum CDMA; state estimators; state-space model; Bit error rate; Detectors; Dispersion; Finite impulse response filter; MIMO; Maximum likelihood detection; Maximum likelihood estimation; Multiaccess communication; Multiuser detection; State estimation;

fLanguage

English

Publisher

ieee

Conference_Titel

Wireless Communications and Networking, 2003. WCNC 2003. 2003 IEEE

Conference_Location

New Orleans, LA, USA

ISSN

1525-3511

Print_ISBN

0-7803-7700-1

Type

conf

DOI

10.1109/WCNC.2003.1200370

Filename

1200370