Optimization of Chaos-based Coded Modulations for Compensation of Amplifier Nonlinearities
Information Theory
2020-04-22 v1 Signal Processing
math.IT
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.
Keywords
Cite
@article{arxiv.2004.09630,
title = {Optimization of Chaos-based Coded Modulations for Compensation of Amplifier Nonlinearities},
author = {Francisco J. Escribano and José Sáez-Landete and Alexandre Wagemakers},
journal= {arXiv preprint arXiv:2004.09630},
year = {2020}
}
Comments
2 pages, 3 figures