Turbo multiuser detection for coded asynchronous DS-CDMA over frequency selective channels

Author

Roumy, A. ; Fijalkow, I. ; Pirez, D.

Author_Institution

Equipe de Taraitement des Images et du Signal, Univ. Lergy Pontiose, France

Volume

2

fYear

2000

fDate

2000

Firstpage

608

Abstract

In order to achieve performant but low-complexity multiuser detection for coded signals, we propose to use a full turbo-CDMA structure. Noticing that a good order of demodulation is very effective in improving performance, we propose a new criterion for the order of demodulation in an asynchronous and frequency selective CDMA context. It takes into account both intersymbol and multiuser interference

Keywords

AWGN channels; code division multiple access; demodulation; intersymbol interference; land mobile radio; multipath channels; multiuser channels; radio receivers; signal detection; spread spectrum communication; turbo codes; AWGN channel; asynchronous CDMA; coded asynchronous DS-CDMA; coded signals; demodulation; equalizers; frequency selective CDMA; frequency selective channels; intersymbol interference; low-complexity multiuser detection; mobile communications; multipath propagation; multiuser interference; performance; receiver; turbo multiuser detection; turbo-CDMA structure; Convolution; Convolutional codes; Demodulation; Detectors; Frequency; Intersymbol interference; Multiaccess communication; Multiuser detection; Signal detection; Spread spectrum communication;

fLanguage

English

Publisher

ieee

Conference_Titel

Spread Spectrum Techniques and Applications, 2000 IEEE Sixth International Symposium on

Conference_Location

Parsippany, NJ

Print_ISBN

0-7803-6560-7

Type

conf

DOI

10.1109/ISSSTA.2000.876505

Filename

876505