Accurate estimation of memory polynomial model dimension for dynamic nonlinear RF power amplifiers

Mohammed Hanzala, Mohammad S. Sharawi, Oualid Hammi

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

1 Scopus citations

Abstract

In this paper, the dimension estimation of memory polynomial based power amplifiers' behavioral models is investigated. Comprehensive study of state of the art performance assessment metrics is carried out. To ensure the generality of the conclusions, the study is experimentally validated using three power amplifiers prototypes designed using various transistors technologies and amplifier topologies. The results show that the performance assessment metrics are equally reliable for the estimation of the device under test nonlinearity order. However, they are inconsistent when used to estimate its memory depth. This limitation is circumvented by applying memoryless post-compensation technique during the memory depth estimation. The proposed approach demonstrates that the dimension estimation can be made objective and independent of the performance assessment metric.

Original languageEnglish
Title of host publicationProceedings of the 2015 10th IEEE Conference on Industrial Electronics and Applications, ICIEA 2015
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages145-150
Number of pages6
ISBN (Electronic)9781467373173
DOIs
StatePublished - 20 Nov 2015

Publication series

NameProceedings of the 2015 10th IEEE Conference on Industrial Electronics and Applications, ICIEA 2015

Bibliographical note

Publisher Copyright:
© 2015 IEEE.

Keywords

  • Long Term Evolution
  • behavioral modeling
  • distortions
  • memory effects
  • memory polynomial
  • nonlinearity
  • post-compensation
  • power amplifiers

ASJC Scopus subject areas

  • Industrial and Manufacturing Engineering
  • Electrical and Electronic Engineering

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