On performance study of data based multiuser detection methods for uplink long-code CDMA systems

Author

Liu, Ping ; Xu, Zhengyuaii ; Yu, Nenghai

Author_Institution

Dept. of Electr. Eng., California Univ., Riverside, CA, USA

Volume

3

fYear

2003

fDate

7-10 Sept. 2003

Firstpage

2910

Abstract

In a long-code uplink CDMA system, subspace method is recently proposed to estimate all users´ multipath parameters and noise power based on the correlation matrix of whitened data. In this paper, we focus on performance of three typical linear receivers, known as zero-forcing (ZF), minimum mean-square-error (MMSE), and RAKE receivers, constructed from the estimated channels and noise power. All analyses are performed from a perturbation perspective and verified by our numerical examples.

Keywords

channel estimation; code division multiple access; correlation methods; error statistics; least mean squares methods; multipath channels; multiuser detection; numerical analysis; radio receivers; BER; CDMA system; MMSE; RAKE receivers; bit error rate; channel estimation; correlation matrix; linear receivers; long-code uplink; minimum mean square error; multipath parameter; multiuser detection; noise power; subspace method; zero-forcing; Additive white noise; Detectors; Fading; Gaussian noise; Information processing; Multiaccess communication; Multipath channels; Multiuser detection; RAKE receivers; Signal to noise ratio;

fLanguage

English

Publisher

ieee

Conference_Titel

Personal, Indoor and Mobile Radio Communications, 2003. PIMRC 2003. 14th IEEE Proceedings on

Print_ISBN

0-7803-7822-9

Type

conf

DOI

10.1109/PIMRC.2003.1259281

Filename

1259281