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

Francisco J. Escribano, José Sáez-Landete, Alexandre Wagemakers

备注：: 2 pages, 3 figures
发表信息：: Electronics Letters, vol. 52, no. 22, pp. 1855-1857, 27 10 2016
DOI：: 10.1049/el.2016.2864

英文摘要：

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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