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dc.creatorSatsiou, A.en
dc.creatorPaterakis, M.en
dc.date.accessioned2015-11-23T10:47:03Z
dc.date.available2015-11-23T10:47:03Z
dc.date.issued2006
dc.identifier10.1007/s00530-006-0042-0
dc.identifier.issn0942-4962
dc.identifier.urihttp://hdl.handle.net/11615/32910
dc.description.abstractThis paper examines a novel cache management policy applied to non-collaborative and collaborative environments of more than one proxy server that serve homogeneous or even heterogeneous client requests for video streaming over the Internet. This cache management policy, which we call LRLFU because of a combination between an LRU and an LFU policy, is capable of capturing the changing popularities of the various videos by attaching a caching value to every video according to how recently and how frequently the video was requested, and decides to cache the most 'valuable' videos. Our event-driven simulations have shown that LRLFU when applied to a simple non-collaborative topology of proxies and compared with previous work in this area (1) improve the byte-hit ratio (BHR), (2) significantly reduce the fraction of user requests with delayed starts and (3) require less CPU overhead. Furthermore, our simulation results have shown that the collaborative hierarchical tree topology of proxies that we examine achieves a much higher BHR when using the same overall cache capacity with the simple topology and in general provides better performance characteristics.en
dc.source.uri<Go to ISI>://WOS:000241949100005
dc.subjectcaching architectureen
dc.subjectcollaborative cachingen
dc.subjectfrequency-based cacheen
dc.subjectmanagement policiesen
dc.subjectsegment-based video cachingen
dc.subjectNETWORKSen
dc.subjectComputer Science, Information Systemsen
dc.subjectComputer Science, Theory &en
dc.subjectMethodsen
dc.titleFrequency-based cache management policies for collaborative and non-collaborative topologies of segment based video caching proxiesen
dc.typejournalArticleen


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Εμφάνιση απλής εγγραφής