Title :
Design and Performance Analysis of an FM-QCSK Chaotic Communication System
Author :
Zhang, Yiwei ; Shen, Xubang ; Ding, Yi
Author_Institution :
Xi´´an Microelectronics Technol. Inst.
Abstract :
This paper presents an improved chaos-based communication method using FM-QCSK (frequency modulated quadrature chaos shift keying) technique. Frequency modulation of the continuous-time chaotic signal makes it possible to generate an inherent wideband signal with constant energy per bit. Quadrature chaotic modulation can obtain similar BER performance but higher data rate compared to the common DCSK (differential chaos shift keying) method. The performance of FM-QCSK system is analyzed in context of AWGN channel and multipath channel. Compared with conventional periodical carrier modulation methods, FM-QCSK scheme has strong immunity to the frequency selective fading, which is shown in the simulation results
Keywords :
AWGN channels; chaotic communication; error statistics; frequency shift keying; multipath channels; AWGN channel; BER; FM-QCSK; chaotic communication system; continuous-time chaotic signal; differential chaos shift keying; frequency modulated quadrature chaos shift keying; frequency selective fading; multipath channel; wideband signal; AWGN channels; Bit error rate; Chaotic communication; Fading; Frequency modulation; Frequency shift keying; Multipath channels; Performance analysis; Signal generators; Wideband;
Conference_Titel :
Wireless Communications, Networking and Mobile Computing, 2006. WiCOM 2006.International Conference on
Conference_Location :
Wuhan
Print_ISBN :
1-4244-0517-3
DOI :
10.1109/WiCOM.2006.198
