Analysis and CMOS implementation of a chaos-based communication system

Author

Mandal, Soumyajit ; Banerjee, Soumitro

Author_Institution

Dept. of Electr. Eng. & Comput. Sci., Massachusetts Inst. of Technol., Cambridge, MA, USA

Volume

51

Issue

9

fYear

2004

Firstpage

1708

Lastpage

1722

Abstract

We describe the design and CMOS implementation of a baseband spread-spectrum communication system using chaotic signals for spreading digital data. The communication system uses a new chaotic modulation scheme called modified differential chaos shift keying (M-DCSK). The M-DCSK scheme and its characteristics are analyzed for single user and multi user applications. The chaotic signals were generated using a simple and robust circuit. The dynamics of this chaos generating circuit are also studied. The spectral properties of the system are investigated and compared with theoretical expectations.

Keywords

CMOS integrated circuits; chaos generators; chaotic communication; differential phase shift keying; frequency shift keying; spread spectrum communication; CMOS implementation; baseband spread-spectrum communication system; chaos generating circuit; chaos-based communication system; chaotic modulation scheme; chaotic signals; digital data; modified differential chaos shift keying; multiple access; multiuser application; single user application; Baseband; Chaotic communication; Communication systems; Frequency modulation; Integrated circuit technology; Robustness; Signal design; Signal generators; Spread spectrum communication; Very large scale integration; CMOS; Chaos; DCSK; M-DCSK; communication; differential chaos shift keying; modified DCSK; multiple access; spectrum;

fLanguage

English

Journal_Title

Circuits and Systems I: Regular Papers, IEEE Transactions on

Publisher

ieee

ISSN

1549-8328

Type

jour

DOI

10.1109/TCSI.2004.834482

Filename

1333221