Performance of iterative multiuser decoding and channel estimation in WCDMA systems

Author

Bhashyam, Srikrishna ; Hottinen, Ari

Author_Institution

Dept. of Electr. & Comput. Eng., Rice Univ., Houston, TX, USA

Volume

1

fYear

2000

fDate

2000

Firstpage

425

Abstract

This paper studies the performance of iterative multiuser decoding, interference cancellation, and channel estimation techniques applicable to third generation WCDMA systems. The concept uses a posteriori probabilities of code symbols to enhance detection, decoding and channel estimation in an iterative fashion. The performance is analyzed in a multipath channel with simulations. It is seen that the proposed concept combats multiuser interference effectively and performs almost as well as single user systems

Keywords

broadband networks; code division multiple access; fading channels; interference suppression; iterative decoding; land mobile radio; multipath channels; multiuser channels; parameter estimation; radio networks; radiofrequency interference; signal detection; a posteriori probabilities; channel estimation; code symbols; interference cancellation; iterative multiuser decoding; mobile radio; multipath fading channel; multiuser interference; parallel interference cancellation; performance; signal detection; simulations; single user systems; third generation WCDMA systems; Channel estimation; Decorrelation; Delay; Fading; Filters; Interference cancellation; Iterative decoding; Multiaccess communication; Multiple access interference; Turbo codes;

fLanguage

English

Publisher

ieee

Conference_Titel

Vehicular Technology Conference Proceedings, 2000. VTC 2000-Spring Tokyo. 2000 IEEE 51st

Conference_Location

Tokyo

ISSN

1090-3038

Print_ISBN

0-7803-5718-3

Type

conf

DOI

10.1109/VETECS.2000.851492

Filename

851492