A novel CDP DS/SS system with 2-dimensional Ikeda map chaotic sequence

Author

Htut, Su Myat ; Puthusserypady, Sadasivan

Author_Institution

Dept. of Electr. & Comput. Eng., Nat. Univ. of Singapore, Singapore

Volume

3

fYear

2003

fDate

7-10 Sept. 2003

Firstpage

2734

Abstract

In this paper, a novel quadrature modulation based complex digital processing (CDP) DS/SS system is proposed which exploits the 2-D complex chaotic Ikeda map (IM) as the spreading sequence. With the proposed system, we can mitigate multiple access interference (MAI) by using complex-valued processing method for the spreading and despreading operations. The performance of the proposed CDP system is evaluated in multiuser environment numerically and analytically under additive white Gaussian noise (AWGN) and Rayleigh flat fading channel conditions. Simulation results reveal that the proposed CDP DS/SS system with the IM spreading sequence significantly outperforms the conventional Gold code based inphase-quadrature (I-Q) DS/SS system.

Keywords

AWGN; Rayleigh channels; chaotic communication; interference suppression; quadrature amplitude modulation; radiofrequency interference; signal processing; spread spectrum communication; 2D complex chaotic Ikeda map sequence; AWGN; DS/SS communication system; MAI; Rayleigh flat fading channel; additive white Gaussian noise; complex digital processing; multiple access interference; quadrature modulation; AWGN; Binary phase shift keying; Bit error rate; Chaos; Chaotic communication; Erbium; Gold; Multiple access interference; Numerical simulation; Performance analysis;

fLanguage

English

Publisher

ieee

Conference_Titel

Personal, Indoor and Mobile Radio Communications, 2003. PIMRC 2003. 14th IEEE Proceedings on

Print_ISBN

0-7803-7822-9

Type

conf

DOI

10.1109/PIMRC.2003.1259238

Filename

1259238