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dc.contributor.authorDikaiakos, Marios D.en
dc.contributor.authorStassopoulou, Athenaen
dc.creatorDikaiakos, Marios D.en
dc.creatorStassopoulou, Athenaen
dc.date.accessioned2019-11-13T10:39:52Z
dc.date.available2019-11-13T10:39:52Z
dc.date.issued2001
dc.identifier.urihttp://gnosis.library.ucy.ac.cy/handle/7/53843
dc.description.abstractIn this paper we study satellite-caching, that is, the employment of satellite multicasting for the dissemination of prefetched content to WWW caches. This approach is currently being deployed by major satellite operators and ISPs around the world. We introduce a theoretical framework to study satellite-caching and formalize the notions of Utility and Quality of Service. We explore two charging schemes, Usage- and Subscription-based pricing, and propose a framework for negotiating the provision of the satellite-caching service between a satellite operator and its potential clients. We use this negotiation framework to compare theoretically the two pricing schemes at hand. We apply our modeling to formulate the selection of Web-content for satellite-multicasting as a combinatorial optimization problem. We study the complexity of Web-content selection and prove it is NP-complete. Finally, we propose and implement an approximation algorithm for content selection, and conduct experiments to assess its efficiency, validity and applicability.en
dc.sourceComputer Communicationsen
dc.source.urihttps://www.scopus.com/inward/record.uri?eid=2-s2.0-0035155891&doi=10.1016%2fS0140-3664%2800%2900292-9&partnerID=40&md5=36c948e712a9aa8892904f691cbfe890
dc.subjectWorld Wide Weben
dc.subjectTelecommunication servicesen
dc.subjectAlgorithmsen
dc.subjectApproximation theoryen
dc.subjectBuffer storageen
dc.subjectComputational complexityen
dc.subjectMulticastingen
dc.subjectCommunication satellitesen
dc.subjectContent selectionen
dc.subjectQuality of Service (QoS)en
dc.subjectSatellite multicastingen
dc.subjectWeb cachingen
dc.titleContent-selection strategies for the periodic prefetching of WWW resources via satelliteen
dc.typeinfo:eu-repo/semantics/article
dc.identifier.doi10.1016/S0140-3664(00)00292-9
dc.description.volume24
dc.description.issue1
dc.description.startingpage93
dc.description.endingpage104
dc.author.faculty002 Σχολή Θετικών και Εφαρμοσμένων Επιστημών / Faculty of Pure and Applied Sciences
dc.author.departmentΤμήμα Πληροφορικής / Department of Computer Science
dc.type.uhtypeArticleen
dc.description.notes<p>Cited By :5</p>en
dc.source.abbreviationComput.Commun.en
dc.contributor.orcidDikaiakos, Marios D. [0000-0002-4350-6058]
dc.gnosis.orcid0000-0002-4350-6058


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