Title :
Design of chaotic spread-spectrum sequences with good correlation properties for DS/CDMA
Author :
Chengquan, An ; Tingxian, Zhou
Author_Institution :
Harbin Inst. of Technol., China
Abstract :
According to the advantages of chaotic analog sequences and chaotic binary sequences, this paper proposes a method of generating chaotic binary spread-spectrum sequences by multilevel quantifying. The performance of DS/CDMA communication system is closely related to the mean-square cross-correlation value between sequences, so the distribution of the correlation and the mean-square correlation between the sequences is presented. The theoretical analysis and the results of simulation show that the spread-spectrum sequences generated by the method have good correlation properties, and their quantity is very large.
Keywords :
binary sequences; chaotic communication; code division multiple access; correlation methods; mean square error methods; spread spectrum communication; DS/CDMA; chaotic analog sequences; chaotic binary sequences; chaotic binary spread-spectrum sequences; chaotic spread-spectrum sequence design; correlation distribution; correlation properties; mean-square correlation; mean-square cross-correlation value; multilevel quantifying; simulation; Analytical models; Binary sequences; Chaos; Chaotic communication; Chebyshev approximation; Communication system security; Logistics; Multiaccess communication; Power generation; Spread spectrum communication;
Conference_Titel :
Circuits and Systems, 2003. ISCAS '03. Proceedings of the 2003 International Symposium on
Print_ISBN :
0-7803-7761-3
DOI :
10.1109/ISCAS.2003.1204966
