Distortion control for delay-sensitive sources

We investigate the problem of finding minimum-distortion policies for streaming delay-sensitive but distortion-tolerant data. We consider cross-layer approaches which exploit the coupling between presentation and transport layers. We make the natural assumption that the distortion function is convex...

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Detalles Bibliográficos
Autores: Faridi, Azadeh, Ephremides, Anthony
Tipo de recurso: artículo
Estado:Versión publicada
Fecha de publicación:2008
País:España
Institución:Universitat Pompeu Fabra
Repositorio:Repositorio Digital de la UPF
OAI Identifier:oai:repositori.upf.edu:10230/20430
Acceso en línea:http://hdl.handle.net/10230/20430
http://dx.doi.org/10.1109/TIT.2008.926338
Access Level:acceso abierto
Palabra clave:Arquitectura d&apos
ordinadors
Reproducció en temps real
Delay-sensitive
Distortion
Scheduling
Source-coding
Streaming
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spelling Distortion control for delay-sensitive sourcesFaridi, AzadehEphremides, AnthonyArquitectura d&aposordinadorsReproducció en temps realDelay-sensitiveDistortionSchedulingSource-codingStreamingWe investigate the problem of finding minimum-distortion policies for streaming delay-sensitive but distortion-tolerant data. We consider cross-layer approaches which exploit the coupling between presentation and transport layers. We make the natural assumption that the distortion function is convex and decreasing. We focus on a single source-destination pair and analytically find the optimum transmission policy when the transmission is done over an error-free channel. This optimum policy turns out to be independent of the exact form of the convex and decreasing distortion function. Then, for a packet-erasure channel, we analytically find the optimum open-loop transmission policy, which is also independent of the form of the convex distortion function. We then find computationally efficient closed-loop heuristic policies and show, through numerical evaluation, that they outperform the open-loop policy and have near optimal performance.This work was supported in part by a subaward from the U.S. Army, prime award W911NF-05-1-0246. Prepared through collaborative participation in the Communications/nand Networks Consortium sponsored by the U.S. Army Research Laboratory under The Collaborative Technology Alliance Program, Cooperative Agreement DAAD19-01-2-0011.Institute of Electrical and Electronics Engineers (IEEE)201320132008info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfapplication/pdfhttp://hdl.handle.net/10230/20430http://dx.doi.org/10.1109/TIT.2008.926338reponame:Repositorio Digital de la UPFinstname:Universitat Pompeu FabraInglésIEEE Transactions on Information Theory. 2008; 54(8)© 2008 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works./nThe final published article can be found at http://ieeexplore.ieee.org/xpl/articleDetails.jsp?arnumber=4567571info:eu-repo/semantics/openAccessoai:repositori.upf.edu:10230/204302026-06-12T07:21:37Z
dc.title.none.fl_str_mv Distortion control for delay-sensitive sources
title Distortion control for delay-sensitive sources
spellingShingle Distortion control for delay-sensitive sources
Faridi, Azadeh
Arquitectura d&apos
ordinadors
Reproducció en temps real
Delay-sensitive
Distortion
Scheduling
Source-coding
Streaming
title_short Distortion control for delay-sensitive sources
title_full Distortion control for delay-sensitive sources
title_fullStr Distortion control for delay-sensitive sources
title_full_unstemmed Distortion control for delay-sensitive sources
title_sort Distortion control for delay-sensitive sources
dc.creator.none.fl_str_mv Faridi, Azadeh
Ephremides, Anthony
author Faridi, Azadeh
author_facet Faridi, Azadeh
Ephremides, Anthony
author_role author
author2 Ephremides, Anthony
author2_role author
dc.subject.none.fl_str_mv Arquitectura d&apos
ordinadors
Reproducció en temps real
Delay-sensitive
Distortion
Scheduling
Source-coding
Streaming
topic Arquitectura d&apos
ordinadors
Reproducció en temps real
Delay-sensitive
Distortion
Scheduling
Source-coding
Streaming
description We investigate the problem of finding minimum-distortion policies for streaming delay-sensitive but distortion-tolerant data. We consider cross-layer approaches which exploit the coupling between presentation and transport layers. We make the natural assumption that the distortion function is convex and decreasing. We focus on a single source-destination pair and analytically find the optimum transmission policy when the transmission is done over an error-free channel. This optimum policy turns out to be independent of the exact form of the convex and decreasing distortion function. Then, for a packet-erasure channel, we analytically find the optimum open-loop transmission policy, which is also independent of the form of the convex distortion function. We then find computationally efficient closed-loop heuristic policies and show, through numerical evaluation, that they outperform the open-loop policy and have near optimal performance.
publishDate 2008
dc.date.none.fl_str_mv 2008
2013
2013
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv http://hdl.handle.net/10230/20430
http://dx.doi.org/10.1109/TIT.2008.926338
url http://hdl.handle.net/10230/20430
http://dx.doi.org/10.1109/TIT.2008.926338
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.relation.none.fl_str_mv IEEE Transactions on Information Theory. 2008; 54(8)
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
application/pdf
dc.publisher.none.fl_str_mv Institute of Electrical and Electronics Engineers (IEEE)
publisher.none.fl_str_mv Institute of Electrical and Electronics Engineers (IEEE)
dc.source.none.fl_str_mv reponame:Repositorio Digital de la UPF
instname:Universitat Pompeu Fabra
instname_str Universitat Pompeu Fabra
reponame_str Repositorio Digital de la UPF
collection Repositorio Digital de la UPF
repository.name.fl_str_mv
repository.mail.fl_str_mv
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score 15,811543

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