NDLI: Quantized oversampled filter banks with erasures

Content Provider	IEEE Xplore Digital Library
Author	Dragotti, P.L. Kovacevic, J. Goyal, V.K.
Copyright Year	2001
Description	Author affiliation: Audio-Visual Commun. Lab., Swiss Federal Inst. of Technol., Lausanne, Switzerland (Dragotti, P.L.)
Abstract	Oversampled filter banks can be used to enhance resilience to erasures in communication systems in much the same way that finite-dimensional frames have previously been applied. This paper extends previous finite dimensional treatments to frames and signals in l/sub 2/(Z) with frame expansions that can be implemented efficiently with filter banks. It is shown that tight frames attain best performance. In particular, if encoding with a uniform frame, the quantization error is minimized if and only if the frame is tight. In case of one erasure and if encoding with a strongly uniform frame, tight frames are still optimal. In case of more erasures, an expression for the mean square error is given and some general considerations are presented.
Sponsorship	Brandeis Univ.
Starting Page	173
Ending Page	182
File Size	519545
Page Count	10
File Format	PDF
ISBN	0769510310
ISSN	10680314
DOI	10.1109/DCC.2001.917148
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2001-03-27
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Channel bank filters Filter bank Resilience Quantization Signal processing Redundancy Laboratories Mathematics Mean square error methods Additive noise
Content Type	Text
Resource Type	Article
Subject	Computer Networks and Communications

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3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
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