A novel channel equalizer for chaotic digital communications systems

Authors:
M. Ciftci;D. B. Williams
Affiliations:
Center for Signal & Image Process., Georgia Inst. of Technol., Atlanta, GA, USA;-
Venue:
ICASSP '99 Proceedings of the Acoustics, Speech, and Signal Processing, 1999. on 1999 IEEE International Conference - Volume 03
Year:
1999

Citing 0
Cited 2

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WAV'09 Proceedings of the 3rd WSEAS international symposium on Wavelets theory and applications in applied mathematics, signal processing & modern science

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Abstract

A variety of communications systems based on chaos and nonlinear dynamics have previously been proposed. However, most of these algorithms fail to work under realistic channel conditions. This paper presents a channel equalization scheme for chaotic communication systems based on a family of archetypal chaotic maps. The symbolic-dynamic representation of these maps is exploited to allow a straightforward and efficient implementation. Equalizer filter coefficients are updated using appropriately modified versions of decision-directed and decision-feedback equalization algorithms with adaptation based on the NLMS algorithm.