Iterative channel estimation and multiuser detection in multipath CDMA channels

Author

Li, Husheng ; Poor, H. Vincent

Author_Institution

Dept. of Electr. Eng., Princeton Univ., NJ, USA

Volume

4

fYear

2003

fDate

11-15 May 2003

Firstpage

2401

Abstract

This paper analyzes the iterative channel estimation and multiuser detection in multipath fading coded CDMA channels. The maximum likelihood criterion is used for channel estimation while the interference is cancelled with direct interference cancellation. The channel decoder output is fed back to enhance the performance of the channel estimator and interference canceller. The asymptotic system performance is analyzed, and conditions for convergence and uniqueness of fixed point are given.

Keywords

channel coding; channel estimation; code division multiple access; fading channels; interference suppression; iterative decoding; maximum likelihood estimation; multipath channels; multiuser detection; asymptotic system performance; channel decoder; code division multiple access; direct interference cancellation; fixed point convergence; interference; iterative channel estimation; maximum likelihood criterion; multipath CDMA channels; multiuser detection; Channel estimation; Fading; Interference cancellation; Iterative decoding; Maximum likelihood decoding; Maximum likelihood detection; Maximum likelihood estimation; Multiaccess communication; Multiuser detection; System performance;

fLanguage

English

Publisher

ieee

Conference_Titel

Communications, 2003. ICC '03. IEEE International Conference on

Print_ISBN

0-7803-7802-4

Type

conf

DOI

10.1109/ICC.2003.1204364

Filename

1204364