Title :
Performance of chaos-based asynchronous DS-CDMA with different pulse shapes
Author :
Setti, Gianluca ; Rovatti, Riccardo ; Mazzini, Gianluca
Author_Institution :
Dept. of Eng., Univ. of Ferrara, Italy
fDate :
7/1/2004 12:00:00 AM
Abstract :
A general framework to assess the joint effect of pulse shaping and spreading sequence statistics on asynchronous DS-CDMA is developed. With this, the effect of three possible pulse shapes (rectangle, band-limited rectangle, and square-root raised-cosine) associated with three possible spreading sequences (i.i.d., chaos-based, and optimum) is analyzed. Improvements up to 16% in users capacity are shown over traditional systems.
Keywords :
chaotic communication; code division multiple access; optimisation; pulse shaping; random sequences; spread spectrum communication; chaos-based asynchronous DS-CDMA; optimization; pulse shaping; spreading sequences statistic; Autocorrelation; Chaos; Chaotic communication; Multiaccess communication; Multiple access interference; Propagation delay; Pulse generation; Pulse shaping methods; Shape; Statistics; Chaos; DS-CDMA; pulse shaping; spreading sequence optimization;
Journal_Title :
Communications Letters, IEEE
DOI :
10.1109/LCOMM.2004.832759
