Blind uplink channel estimation and multiuser detection for wideband CDMA

Author

Jiang, Bofeng ; Wu, Xiaojun ; Yin, Qinye

Author_Institution

Inst. of Inf. Eng., Xian Jiaotong Univ., China

Volume

3

fYear

2000

fDate

2000

Firstpage

1798

Abstract

In wideband CDMA systems, the information symbols transmit with high rate. However, the multiple propagation paths can cause both multiple access interference (MAI) and intersymbol interference (ISI). The MAI and ISI must be considered simultaneously. In this paper, under the condition of known spreading code and the finite alphabet, a blind channel estimation method is proposed for wideband CDMA uplink. Based on the estimated channel, a linear minimum mean square error (MMSE) multiuser detector is constructed. The validity of the method is demonstrated by computer simulation

Keywords

code division multiple access; intersymbol interference; least mean squares methods; mobile radio; multipath channels; multiuser channels; radio links; radiofrequency interference; signal detection; CDMA uplink; ISI; MAI; MMSE multiuser detector; W-CDMA; blind channel estimation method; finite alphabet; intersymbol interference; linear minimum mean square error multiuser detector; multiple access interference; multiuser detection; spreading code; wideband CDMA uplink; Blind equalizers; Channel estimation; Computer simulation; Detectors; Intersymbol interference; Mean square error methods; Multiaccess communication; Multiple access interference; Multiuser detection; Wideband;

fLanguage

English

Publisher

ieee

Conference_Titel

Signal Processing Proceedings, 2000. WCCC-ICSP 2000. 5th International Conference on

Conference_Location

Beijing

Print_ISBN

0-7803-5747-7

Type

conf

DOI

10.1109/ICOSP.2000.893450

Filename

893450