Predistortion for Wideband Nonlinear Satellite Downlinks

In this letter, an efficient predistortion scheme is proposed to compensate imperfections in a satellite channel due to the nonlinear power amplifier and the output channel filter. The predistorter is a Wiener system consisting of the linear and nonlinear components, which are trained independently....

Full description

Saved in:
Bibliographic Details
Published inIEEE communications letters Vol. 21; no. 9; pp. 1985 - 1988
Main Authors Layton, Kelvin J., Mehboob, Azam, Akhlaq, Assad, Bagaglini, Flaviano, Cowley, William G., Lechner, Gottfried
Format Journal Article
LanguageEnglish
Published IEEE 01.09.2017
Subjects
Computational modeling
Data models
digital predistortion
equalization
Iterative methods
Nonlinear distortion
Nonlinear satellite channels
OMUX filter
Predistortion
Satellites
Volterra series
Online AccessGet full text

Cover

More Information
Summary:In this letter, an efficient predistortion scheme is proposed to compensate imperfections in a satellite channel due to the nonlinear power amplifier and the output channel filter. The predistorter is a Wiener system consisting of the linear and nonlinear components, which are trained independently. The predistorter is well suited to systems where the data bits are generated onboard the satellite. The proposed setup effectively compensates the distortions and has lower complexity compared with other strategies.
ISSN:1089-7798
1558-2558
DOI:10.1109/LCOMM.2017.2710339