Distortion control for delay-sensitive sources

Mostra el registre complet Registre parcial de l'ítem

• dc.contributor.author Faridi, Azadehca
• dc.contributor.author Ephremides, Anthonyca
• dc.date.accessioned 2013-02-27T15:45:00Z
• dc.date.available 2013-02-27T15:45:00Z
• dc.date.issued 2008ca
• dc.description.abstract 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.
• dc.description.sponsorship 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.
• dc.format.mimetype application/pdfca
• dc.identifier.citation Faridi A, Ephremides A. Distortion control for delay-sensitive sources. IEEE Trans. Inf. Theory. 2008; 54(8): 3399-3411. DOI 10.1109/TIT.2008.926338ca
• dc.identifier.doi http://dx.doi.org/10.1109/TIT.2008.926338
• dc.identifier.issn 0018-9448ca
• dc.identifier.uri http://hdl.handle.net/10230/20430
• dc.language.iso engca
• dc.publisher Institute of Electrical and Electronics Engineers (IEEE)ca
• dc.relation.ispartof IEEE Transactions on Information Theory. 2008; 54(8)
• dc.rights © 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=4567571ca
• dc.rights.accessRights info:eu-repo/semantics/openAccessca
• dc.subject.keyword Delay-sensitive
• dc.subject.keyword Distortion
• dc.subject.keyword Scheduling
• dc.subject.keyword Source-coding
• dc.subject.keyword Streaming
• dc.subject.other Arquitectura d'ordinadors
• dc.subject.other Reproducció en temps real
• dc.title Distortion control for delay-sensitive sourcesca
• dc.type info:eu-repo/semantics/articleca
• dc.type.version info:eu-repo/semantics/publishedVersionca