Nonlinear turbo equalization using context trees

Nargiz Kalantarova, Kyeongyeon Kim, Suleyman S. Kozat, Andrew C. Singer

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

In this paper, we study adaptive nonlinear turbo equalization to model the nonlinear dependency of a linear minimum mean square error (MMSE) equalizer on soft information from the decoder. To accomplish this, we introduce piecewise linear models based on context trees that can adaptively choose both the partition regions as well as the equalizer coefficients in each region independently, with the computational complexity of a single adaptive linear equalizer. This approach is guaranteed to asymptotically achieve the performance of the best piecewise linear equalizer that can choose both its regions as well as its filter parameters based on observing the whole data sequence in advance.

Original languageEnglish (US)
Title of host publication2011 Information Theory and Applications Workshop, ITA 2011 - Conference Proceedings
Pages378-382
Number of pages5
DOIs
StatePublished - 2011
Event2011 Information Theory and Applications Workshop, ITA 2011 - San Diego, CA, United States
Duration: Feb 6 2011Feb 11 2011

Publication series

Name2011 Information Theory and Applications Workshop, ITA 2011 - Conference Proceedings

Other

Other2011 Information Theory and Applications Workshop, ITA 2011
Country/TerritoryUnited States
CitySan Diego, CA
Period2/6/112/11/11

Keywords

  • Turbo equalization
  • context trees
  • decision feedback
  • nonlinear equalization

ASJC Scopus subject areas

  • Computational Theory and Mathematics
  • Computer Science Applications
  • Information Systems

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