A Dual-Input Two-Box Model for Digital Predistortion of Envelope Tracking Power Amplifiers

Oualid Hammi,Mohamed O. H. Khalifa,Abubaker Abdelhafiz,Andrew Kwan,Azzedine Zerguine,Mohammad S. Sharawi,Fadhel M. Ghannouchi

IEEE Microwave and Wireless Components Letters（2016）

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摘要

This work proposes a novel two-box dual-input single-output digital predistorter (labeled as the LUT MISO predistorter) suitable for linearizing dynamic nonlinear envelope tracking power amplifiers. The LUT MISO predistorter is built by cascading a single-input memoryless nonlinear function with a two-input polynomial model with memory. The predistorted signal is synthesized as a function of the b...

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关键词

Mathematical model,Table lookup,Predistortion,Nonlinear distortion,Wireless communication,Long Term Evolution

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