Performance of multi-user chaos-based DS-CDMA system over multipath channel

Author

Kaddoum, Georges ; Roviras, Daniel ; Charge, P. ; Fournier-Prunaret, Danièle

Author_Institution

Signal & Commun. Team, Univ. of Toulouse, Toulouse, France

fYear

2009

fDate

24-27 May 2009

Firstpage

2637

Lastpage

2640

Abstract

In this paper, we propose a new approach to compute the exact bit error rate expression for asynchronous chaos-based DS-CDMA system over multipath channel. Perfect estimation of the channel coefficients with the associated delays and chaos synchronization are assumed. A simple RAKE receiver structure is considered. A stationary multipath channel with constant gain is assumed. An asynchronous multi-user chaos-based DS-CDMA system is then defined and the BER is derived in terms of the energy distribution, the number of paths, the noise variances, and the number of users.

Keywords

channel estimation; chaotic communication; code division multiple access; error statistics; multipath channels; radio receivers; spread spectrum communication; RAKE receiver; bit error rate expression; channel estimation; chaos synchronization; multipath channel; multiuser chaos-based DS-CDMA system; Bit error rate; Chaos; Chaotic communication; Correlators; Delay estimation; Fading; Multiaccess communication; Multipath channels; RAKE receivers; Signal generators;

fLanguage

English

Publisher

ieee

Conference_Titel

Circuits and Systems, 2009. ISCAS 2009. IEEE International Symposium on

Conference_Location

Taipei

Print_ISBN

978-1-4244-3827-3

Electronic_ISBN

978-1-4244-3828-0

Type

conf

DOI

10.1109/ISCAS.2009.5118343

Filename

5118343