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A fractionally spaced DFE with subband decorrelation

Weiss, Stephan and Rupp, Markus and Hanzo, Lajos (2000) A fractionally spaced DFE with subband decorrelation. In: Thirty-Fourth Asilomar Conference on Signals, Systems and Computers, 2000-10-29 - 2000-11-01, Pacific Grove, CA.

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Abstract

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.

Item type: Conference or Workshop Item (Paper)
ID code: 32757
Keywords: computer science, convergence, filter bank, signal processing, Electrical engineering. Electronics Nuclear engineering
Subjects: Technology > Electrical engineering. Electronics Nuclear engineering
Department: Faculty of Engineering > Electronic and Electrical Engineering
Depositing user: Pure Administrator
Date Deposited: 31 Aug 2011 13:47
Last modified: 26 Mar 2015 15:37
URI: http://strathprints.strath.ac.uk/id/eprint/32757

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