A Fractionally Spaced DFE with Subband Decorrelation
A Fractionally Spaced DFE with Subband Decorrelation
In this paper 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 sever multipath environment are presented.
0-7803-6514-3
1767-1771
Weiss, S.
55a13123-6604-4dad-b647-7347683c8c49
Rupp, M.
66e04939-773b-4528-a516-11e4c5007bd6
Hanzo, L.
66e7266f-3066-4fc0-8391-e000acce71a1
October 2000
Weiss, S.
55a13123-6604-4dad-b647-7347683c8c49
Rupp, M.
66e04939-773b-4528-a516-11e4c5007bd6
Hanzo, L.
66e7266f-3066-4fc0-8391-e000acce71a1
Weiss, S., Rupp, M. and Hanzo, L.
(2000)
A Fractionally Spaced DFE with Subband Decorrelation.
34th Asilomar Conference on Signals, Systems, and Computers, Pacific Grove, Calafornia, United States.
29 Oct - 01 Nov 2000.
.
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Conference or Workshop Item
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Abstract
In this paper 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 sever multipath environment are presented.
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Published date: October 2000
Additional Information:
Event Dates: 29 October - 1 November 2000 Organisation: IEEE Address: Monterey, California, USA
Venue - Dates:
34th Asilomar Conference on Signals, Systems, and Computers, Pacific Grove, Calafornia, United States, 2000-10-29 - 2000-11-01
Organisations:
Southampton Wireless Group
Identifiers
Local EPrints ID: 253999
URI: http://eprints.soton.ac.uk/id/eprint/253999
ISBN: 0-7803-6514-3
PURE UUID: facf7c2a-5f64-4f96-9a35-265d17a8d101
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Date deposited: 28 Jan 2004
Last modified: 18 Mar 2024 02:33
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Contributors
Author:
S. Weiss
Author:
M. Rupp
Author:
L. Hanzo
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