Publication detail

Experimental Verification and Comparison of Polynomials and LUTs Predistortion Techniques

GÖTTHANS, T. MARŠÁLEK, R. POSPÍŠIL, M. BLUMENSTEIN, J. BAUDOIN, G.

Original Title

Experimental Verification and Comparison of Polynomials and LUTs Predistortion Techniques

Type

conference paper

Language

English

Original Abstract

In order to compensate for nonlinearities and memory effects introduced by power amplifiers, the digital predistortion is a widely used technique. Commonly the digital predistortion is based on polynomials derived from Volterra series or on lookup tables. Both approaches require time to find the solution that can be applied to digital predistorter. Nevertheless, for predistorters to be actually implemented in real-time scenarios, fast convergence and low complexity is highly required. Unfortunately there does not exist a general rule for simple choice in terms of performance, convergence time and complexity. Thus in this paper a brief comparison of Volterra based series (orthogonal polynomials and simplified dynamic deviation reduction of second order) and lookup tables with cubic interpolation which are widely used schematic is provided.

Keywords

Linearization, predistortion, power amplifier, LUT

Authors

GÖTTHANS, T.; MARŠÁLEK, R.; POSPÍŠIL, M.; BLUMENSTEIN, J.; BAUDOIN, G.

RIV year

2015

Released

15. 4. 2015

ISBN

978-1-4799-8117-5

Book

25th International Conference Radioelektronika 2015

ISBN

NEUVEDENO

Pages from

309

Pages to

312

Pages count

4

URL

https://ieeexplore.ieee.org/document/7129047

BibTex

@inproceedings{BUT114666,
  author="Tomáš {Götthans} and Roman {Maršálek} and Martin {Pospíšil} and Jiří {Blumenstein} and Genevieve {Baudoin}",
  title="Experimental Verification and Comparison of Polynomials and LUTs Predistortion Techniques",
  booktitle="25th International Conference Radioelektronika 2015",
  year="2015",
  pages="309--312",
  doi="10.1109/RADIOELEK.2015.7129047",
  isbn="978-1-4799-8117-5",
  url="https://ieeexplore.ieee.org/document/7129047"
}