Title :
A CDMA based multiple-access scheme for DCSK
Author :
Li, Hui ; Dai, Xuchu ; Xu, Peixia
Author_Institution :
Dept. of Electron. Eng. & Inf. Sci., China Univ. of Sci. & Technol., Hefei, China
fDate :
31 May-2 June 2004
Abstract :
A novel CDMA based multiple-access scheme for differential chaos shift keying (DCSK) is proposed in this paper. By using the orthogonal pseudo-random codes, multi-user access ability can be provided for both synchronized and asynchronous multi-user DCSK system. Firstly, the transmitter and receiver structure of CDMA-DCSK system are given, which are with slight modification to the original DCSK system, and the basic idea and principle are also described. Then the bit error rate performance of the proposed CDMA-DCSK scheme is analyzed, and several formulae for evaluating BER are obtained. Finally, some simulation results, comparison, and discussions are presented.
Keywords :
chaotic communication; code division multiple access; error statistics; pseudonoise codes; radio receivers; radio transmitters; random codes; BER; CDMA; bit error rate; code division multiple access; differential chaos shift keying; multiple-access scheme; orthogonal pseudo-random code; receiver; transmitter; Bit error rate; Chaos; Chaotic communication; Digital communication; Frequency synchronization; Information science; Interference; Multiaccess communication; Performance analysis; Transmitters;
Conference_Titel :
Emerging Technologies: Frontiers of Mobile and Wireless Communication, 2004. Proceedings of the IEEE 6th Circuits and Systems Symposium on
Print_ISBN :
0-7803-7938-1
DOI :
10.1109/CASSET.2004.1322985
