Amplifier linearization with memory for broadband wireless applications

Kathleen J. Muhonen, Mohsen Kavehrad

Research output: Contribution to journalArticle

6 Scopus citations

Abstract

A new broadband linearizer is presented. It is most suited for wideband applications since it compensates for the amplifier memory as well as nonlinearity. Its implementation uses a nonlinear tapped delay line. The nonlinearity is implemented by a polynomial and the memory by an equalizer topology. This allows a minimal number of coefficients required for implementation. Performance shows that a memoryless look up table predistorter can only compensate for nonlinearities that show up in the adjacent channel. The nonlinear tapped delay line compensates for nonlinearity and memory; the memory shows up in band as well as out of band.

Original languageEnglish (US)
Pages (from-to)689-693
Number of pages5
JournalConference Record of the Asilomar Conference on Signals, Systems and Computers
Volume1
DOIs
StatePublished - Jan 1 2001

All Science Journal Classification (ASJC) codes

  • Signal Processing
  • Computer Networks and Communications

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