A fractionally spaced DFE with subband decorrelation

Stephan Weiss, Markus Rupp, Lajos Hanzo

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

3 Citations (Scopus)


We proposed a modification of the “classic” fractionally spaced decision feedback equaliser (FS-DFE) in order to increase the slow convergence rate of the oversampled feed-forward section for LMS type algorithms. This is performed by employing a subband structure for the latter part of the FS-DFE, which results in a decorrelation of the input. We motivate why an oversampled subband decomposition is beneficial and comment on the selection of the filter banks. As an additional benefit, computational savings arise if judicious implementation of the filter banks is combined with the internal decimation and expansion operations in the FS-DFE. Simulations for a severe multipath environment are presented.
Original languageEnglish
Title of host publicationConference record of the 34th asilomar conference on signals, systems & computers
EditorsM.B. Matthews
Place of PublicationNew York
Number of pages5
ISBN (Print)0780365143
Publication statusPublished - Nov 2000
EventThirty-Fourth Asilomar Conference on Signals, Systems and Computers - Pacific Grove, CA, United States
Duration: 29 Oct 20001 Nov 2000

Publication series

NameConference record of the asilomar conference on signals, systems and computers
ISSN (Print)1058-6393


ConferenceThirty-Fourth Asilomar Conference on Signals, Systems and Computers
Country/TerritoryUnited States
CityPacific Grove, CA


  • computer science
  • convergence
  • filter bank
  • signal processing
  • fractionally spaced
  • dfe
  • subband decorrelation


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