G. Setti et al., Synchronization mechanism and optimization of spreading sequences in chaos-based DS-CDMA systems, IEICE T FUN, E82A(9), 1999, pp. 1737-1746
Citations number
17
Categorie Soggetti
Eletrical & Eletronics Engineeing
Journal title
IEICE TRANSACTIONS ON FUNDAMENTALS OF ELECTRONICS COMMUNICATIONS AND COMPUTER SCIENCES
The aim of this contribution is to take a further step in the study of the
impact of chaos-based techniques on classical DS-CDMA systems. The problem
addressed here is the sequence phase acquisition and tracking which is need
ed to synchronize the spreading and despreading sequences of each link. An
acquisition mechanism is considered and analyzed in depth to identify analy
tical expressions of suitable system performance parameters, namely outage
probability, link startup delay and expected time to service. Special chaot
ic maps are considered to show that the choice of spreading sequences can b
e optimized to accelerate and improve the spreading codes acquisition phase
.