Title :
A proposal of synchronized chaotic communication system using M-ary/SS
Author :
Aoki, Kazuhiro ; Sasaki, Itsuo
Author_Institution :
Osaka Prefectural Coll. of Technol., Neyagawa
Abstract :
It is well known that M-ary spread spectrum (M-ary/SS) system is superior to direct-sequence spread spectrum (DS/SS) system under additive white Gaussian noise (AWGN), and can achieve high spectral efficiency. In this paper, we propose use of M-ary/SS for the purpose of improving the anti-noise performance in synchronized chaotic communication system. However, in the M-ary/SS system, since the transmitted sequences change with each frame, synchronization is difficult. In this system, frame synchronization performance is improved by using chaotic synchronization. The validity of the proposed system is shown by computer simulations
Keywords :
AWGN; chaotic communication; spread spectrum communication; synchronisation; AWGN; DS/SS system; M-ary spread spectrum system; M-ary/SS; additive white Gaussian noise; chaotic synchronization; direct-sequence spread spectrum; high spectral efficiency; synchronized chaotic communication system; AWGN; Additive white noise; Bit error rate; Chaotic communication; Computer simulation; Proposals; Signal generators; Spread spectrum communication; Timing; Transmitters;
Conference_Titel :
Intelligent Signal Processing and Communications, 2006. ISPACS '06. International Symposium on
Conference_Location :
Yonago
Print_ISBN :
0-7803-9732-0
Electronic_ISBN :
0-7803-9733-9
DOI :
10.1109/ISPACS.2006.364760
