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arXiv · 2004.09630

Optimization of Chaos-based Coded Modulations for Compensation of Amplifier Nonlinearities

Francisco J. Escribano·José Sáez-Landete·Alexandre Wagemakers
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Abstract

In this work we expand the possibilities of a known class of chaos-based coded modulation (CCM) systems to address the problem of high-power amplifier (HPA) nonlinearity. The hypothesis is that the CCM nonlinear nature can be exploited to counteract its effects on the system performance, avoiding the need of a predistorter. We propose an optimization method for the design of the CCM to prove this hypothesis. The results show that, for a given back-off level, a nonlinear mapping function for the chaos-based encoder and decoder can be designed to compensate the HPA effect on the error rate.

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BibTeXRIS

Francisco J. Escribano, José Sáez-Landete, Alexandre Wagemakers. 2020-04-20. Optimization of Chaos-based Coded Modulations for Compensation of Amplifier Nonlinearities. https://doi.org/10.1049/el.2016.2864

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