A new predistorter design for nonlinear power amplifiers using the minimum distortion power polynomial model (MDP-PM)

Document Type

Article

Publication Date

1-1-2001

Abstract

A new polynomial model for nonlinear power amplifiers (PA) was proposed in our early work which takes into accounts both the input modulation format and the operating point of a PA. Such a model has been applied to analog predistorter (PD) design using a zero forcing scheme [1]. In this paper, this model will be applied to PD designs using the approach of approximating the ideal predistorter of the PA of interest. Based on the metric of the total degradation of a digital radio link with 64-QAM, the proposed PD has comparable performance of another PD obtained by the ideal approximation approach [2], but has less complexity in its implementation than the other one. In addition, based on the same metric, significant improvement is shown of the new PD over several PD designs using the zero-forcing scheme, including the one proposed in [1]. However, the MDP-PM of the ideal PD has the same level of complexity as the PDs compared in the same order.

Identifier

0035188534 (Scopus)

Publication Title

IEEE Vehicular Technology Conference

External Full Text Location

https://doi.org/10.1109/VTC.2001.957138

ISSN

07400551

First Page

2216

Last Page

2220

Issue

54ND

Volume

4

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