Title :
Performance of a chaotic binary sequence based multiple-access DCSK communication system
Author :
Zhou, Zhibo ; Zhou, Tong ; Wang, Jinxiang
Author_Institution :
Microelectron. Center, Harbin Inst. of Technol., Harbin
Abstract :
A new kind of multiple-access differential chaos shift keying (MA-DCSK) is presented. It is based on chaotic Binary sequence and Walsh codes, for convenience, we call it BW-MA-DCSK. In the proposed BWMA-DCSK system, the signals that come from the transmitter and the corresponding receiver are multiplied with the same Walsh codes. Due to the Walsh codes orthogonality and the constant instantaneous power of the chaotic binary signal, the interference between users will be greatly reduced. So, the BWMA-DCSK is capable of multiple access ability. The systempsilas bit error rate (BER) performance is analyzed and compared with that of other kind of MA-DCSK. The BER formula is evaluated and the simulation results match the numerical ones well which support the theoretical analysis.
Keywords :
Walsh functions; binary sequences; chaotic communication; differential phase shift keying; error statistics; multi-access systems; DCSK communication system; Walsh codes; bit error rate; chaotic binary sequence; differential chaos shift keying; multiple access; orthogonality; receiver; transmitter; Automation; Binary sequences; Bit error rate; Chaotic communication; Communication systems; Delay; Frequency modulation; Logistics; Signal generators; Transmitters; BER; DCSK; chaos communication; multiple access;
Conference_Titel :
Information and Automation, 2008. ICIA 2008. International Conference on
Conference_Location :
Changsha
Print_ISBN :
978-1-4244-2183-1
Electronic_ISBN :
978-1-4244-2184-8
DOI :
10.1109/ICINFA.2008.4608190
