Signal processing in decision-feedback equalization of intersymbol-interference and multiple-input/multiple-output channels: a unified view

  • Authors:
  • Robert Fischer;Johannes Huber;Christoph Windpassinger

  • Affiliations:
  • Lehrstuhl für Informationsübertragung, Friedrich-Alexander-Universität Erlangen-Nürnberg, Cauerstraße 7/NT, Erlangen 91058 Germany;Lehrstuhl für Informationsübertragung, Friedrich-Alexander-Universität Erlangen-Nürnberg, Cauerstraße 7/NT, Erlangen 91058 Germany;Lehrstuhl für Informationsübertragung, Friedrich-Alexander-Universität Erlangen-Nürnberg, Cauerstraße 7/NT, Erlangen 91058 Germany

  • Venue:
  • Signal Processing - Special section: Hans Wilhelm Schüßler celebrates his 75th birthday
  • Year:
  • 2003

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Abstract

Digital transmission over dispersive channels which suffer from intersymbol interference (ISI) and/or over multiple-input/ multiple-output (MIMO) channels which exhibit multi-user interference is reviewed. In particular, the digital signal processing required at the receiver for performing decision-feedback equalization is studied. The aims of processing the received signal are discussed and compared for ISI channels, MIMO channels, and MIMO ISI channels. The calculation of the optimum filters for these applications is presented in a unified way, and it is shown that each aspect in one field has its immediate correspondence in the other application.