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Thomas Schimming

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Publications associées (18)

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Potential of chaos communication over noisy channels - Channel coding using chaotic piecewise linear maps

Martin Hasler, Thomas Schimming

The paper gives an information theoretic analysis of the potential of chaos in digital communication schemes, underlining that there is no fundamental principle that speaks against the use of chaotic systems in digital communications. The channel model con ...

2002

Statistical analysis and optimization of chaos based broadband communications

Thomas Schimming

This thesis treats the topic of chaos based broadband communication schemes, with particular emphasis on the statistical analysis and optimization of such schemes. The work is motivated by the recent advances in nonlinear system theory suggesting advantage ...

EPFL2002

Comparison of different chaos shift keying methods

Martin Hasler, Thomas Schimming

This paper examines a number of chaos shift keying methods Different approaches for the optimization of the transmitter and the receiver (based on statistical arguments) are compared through simulation. Based on the results, The tradeoff between computatio ...

2001

Ergodic chaos shift keying for 2 users

Martin Hasler, Thomas Schimming

We show how a multiuser chaos-based communication system can be designed. The approach builds on the recently introduced method of ergodic chaos shift keying. This method uses a nonlinear correlation estimator for extracting the binary information from the ...

2001

Reduced complexity likelihood approximation for chaotic trajectory segments

Thomas Schimming

Recently, statistically optimal detection methods for communication schemes based on chaos have been developed. The decision criterion is based on the well-known maximum likelihood criterion. Unfortunately, the calculation of the likelihoods is of exponent ...

2000

Optimal Detection of Differential Chaos Shift Keying

Martin Hasler, Thomas Schimming

Recent advances in the development of communication schemes based on chaos suggest that Differential Chaos Shift Keying (DCSK) is one of the most promising candidates for a feasible implementation. Traditionally, the demodulation/decoding of DCSK has been ...

2000

Signal Modelling using piecewise linear chaotic generators

Thomas Schimming

In this paper the modeling of a signal by a chaotic generator with respect to a specified signal statistic will be considered. To accomplish that, the considered class of n-dimensional piecewise linear Markov generators will first be analyzed analytically, ...

1998

A nonlinear dynamical model of compression and detection of ECG signals

Thomas Schimming

We propose a low-dimensional nonlinear model explaining the ECG dynamics, suitable for data compression and possibly feature detection. Tests on real clinically measured ECG signals confirmed very good performance of the model in terms of modeling errors a ...

1998