Sequence synchronization in chaos-based DS-CDMA systems

The aim of this contribution is to consider 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 needed to synchronize the spreading and despreading sequences of each link. An acquisition mechanism is proposed and analyzed in depth to identify parameters allowing the study of its performance when classical and chaos-based sequences are employed for spreading. Numerical results show that the adoption of chaos-based techniques may lead to an improvement in link startup delay and expected service availability