Title :
Improvement of SNR with chaotic spreading sequences for CDMA
Author :
Umeno, Ken ; Kitayama, Ken-ichi
Author_Institution :
Commun. Res. Lab., Minist. of Posts & Telecommun., Tokyo, Japan
Abstract :
We show that chaotic spreading sequences generated by ergodic mappings of Chebyshev orthogonal polynomials have better correlation properties for CDMA than the optimal binary sequences (Gold sequences) in the sense of ensemble average
Keywords :
chaos; code division multiple access; correlation methods; polynomials; sequences; CDMA; Chebyshev orthogonal polynomials; Gold sequences; SNR improvement; chaotic spreading sequences; correlation properties; ensemble average; ergodic mappings; optimal binary sequences; Chaos; Chaotic communication; Chebyshev approximation; Extraterrestrial measurements; Gaussian noise; Gold; Interference; Multiaccess communication; Polynomials; Signal to noise ratio;
Conference_Titel :
Information Theory and Communications Workshop, 1999. Proceedings of the 1999 IEEE
Conference_Location :
Kruger National Park
Print_ISBN :
0-7803-5268-8
DOI :
10.1109/ITCOM.1999.781437
