A subband adaptive equalization structure

Stephan Weiss, Daniel Garcia-Alis, Robert Stewart

Research output: Contribution to conferencePaper

2 Citations (Scopus)
1 Downloads (Pure)

Abstract

The potential presence of fractional delays, non-minimum phase parts, and a colouring of the channel output can require adaptive equalizers to adapt very long impulse responses. Besides resulting in a large computational complexity, this will in general cause slow convergence for LMS-type adaptive algorithms. In this paper, we address the equalization problem by a subband approach to reduce computational complexity and to improve convergence speed. We discuss, why amongst other possibilities of subband processing the oversampled approach is particularly appealing to significantly reduce computational complexity and improve convergence speed. Simulation results for a typical communication channels are presented and highlight the benefit of our method.
Original languageEnglish
Pages4/1-4/7
Number of pages7
DOIs
Publication statusPublished - 1999
EventIEE Colloquium on Novel DSP Applications in Radio Systems - London, United Kingdom
Duration: 28 Sep 199928 Sep 1999

Conference

ConferenceIEE Colloquium on Novel DSP Applications in Radio Systems
CountryUnited Kingdom
CityLondon
Period28/09/9928/09/99

Keywords

  • adaptive equalisers
  • adaptive filters
  • computational complexity
  • convergence
  • telecommunication channels
  • subband
  • adaptive equalization structure

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  • Cite this

    Weiss, S., Garcia-Alis, D., & Stewart, R. (1999). A subband adaptive equalization structure. 4/1-4/7. Paper presented at IEE Colloquium on Novel DSP Applications in Radio Systems, London, United Kingdom. https://doi.org/10.1049/ic:19990846