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Proceedings Paper

Review of pre-FFT equalization techniques and their application to 4G
Author(s): Simon Armour; Angela Doufexi; Andrew Nix; Mark Beach; J. McGeehan
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Paper Abstract

In this paper a review of the Pre-FFT Equalization technique is presented with a particular focus on 4G applications. The essential concepts and motivations for the use of this technique are first presented. Subsequently, previous research of the topic both by the authors and others is reviewed. In particular, methods for implementing the Pre-FFT Equalizer itself and for adapting it are reviewed in detail. The issue of noise amplification and the use of Channel State Information in the COFDM system to mitigate this phenomenon are also discussed. Application of a Pre-FFT Equalizer to a possible, COFDM based, 4G standard is then discussed and software simulations used to demonstrate the benefits that can be achieved by a Pre-FFT Equalizer in a 4G system.

Paper Details

Date Published: 2 November 2001
PDF: 11 pages
Proc. SPIE 4529, Enabling Technologies for 3G and Beyond, (2 November 2001); doi: 10.1117/12.447391
Show Author Affiliations
Simon Armour, Univ. of Bristol (United Kingdom)
Angela Doufexi, Univ. of Bristol (United Kingdom)
Andrew Nix, Univ. of Bristol (United Kingdom)
Mark Beach, Univ. of Bristol (United Kingdom)
J. McGeehan, Univ. of Bristol (United Kingdom)

Published in SPIE Proceedings Vol. 4529:
Enabling Technologies for 3G and Beyond
Vijay K. Garg; Carl R. Nassar; Steve J. Shattil; Carl R. Nassar; Steve J. Shattil, Editor(s)

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