Title :
Multi-user detection for an asynchronous differential chaos-based multiple access system
Author :
Coulon, Martial ; Roviras, Daniel
Author_Institution :
INP-ENSEEIHT, IRIT-TeSA, Toulouse
Abstract :
This paper deals with the bit detection for an asynchronous transmission using a chaos-based multiple access system. Two kinds of detectors are studied: those based on a LMMSE approach, including an adaptive detector, and those based on the estimation of the users´ chaotic sequences. Theoretical and simulated performance results are provided, which show the superiority of the first detectors, even when few a priori information concerning the channels is available.
Keywords :
chaotic communication; least mean squares methods; multi-access systems; adaptive detector; asynchronous differential chaos; asynchronous transmission; chaos-based multiple access system; linear minimum mean-squared error; multiuser detection; Bandwidth; Chaos; Chaotic communication; Detectors; Digital communication; Frequency synchronization; Least squares approximation; Multiaccess communication; Multiuser detection; Signal generators;
Conference_Titel :
Circuit Theory and Design, 2007. ECCTD 2007. 18th European Conference on
Conference_Location :
Seville
Print_ISBN :
978-1-4244-1341-6
Electronic_ISBN :
978-1-4244-1342-3
DOI :
10.1109/ECCTD.2007.4529698
