Novel Techniques for Large-Scale and Cost-Effective Video Services

dc.contributor.advisor Ying Cai
dc.contributor.advisor Johnny S. Wong
dc.contributor.author Natarajan, Ashwin
dc.contributor.department Computer Science
dc.date 2018-08-11T16:38:07.000
dc.date.accessioned 2020-06-30T02:44:37Z
dc.date.available 2020-06-30T02:44:37Z
dc.date.copyright Sun Jan 01 00:00:00 UTC 2012
dc.date.embargo 2013-06-05
dc.date.issued 2012-01-01
dc.description.abstract <p>Despite the advance of network technologies in the past decade, providing video services to a large number of users remains a major technical challenge. This is especially true when it comes to serving high-definition videos. This thesis makes two contributions towards providing large-scale and cost-effective video services. 1) We consider the problem of periodic broadcast of popular videos in client/server video systems and present two novel techniques. Our research advances the state of the art with a segmentation rule that can generate a series of broadcast designs, among which we can choose the one that results in the smallest broadcast latency. We show that this rule allows us to design the broadcast technique that is the fastest up to</p> <p>date. 2) We then look at the problem of service scheduling in fully distributed peer-to-peer video systems, where a large number of hosts collaborate for the purpose of video sharing. Our proposed technique allows a client to be served by a server that is beyond its own file look up scope and can dynamically adjust client and server matches as new video requests arrive in the system. Our performance evaluation shows that these features dramatically improve the system performance to a large extent in terms of reducing service latency under a range of</p> <p>simulation settings.</p>
dc.format.mimetype application/pdf
dc.identifier archive/lib.dr.iastate.edu/etd/12709/
dc.identifier.articleid 3716
dc.identifier.contextkey 4186466
dc.identifier.doi https://doi.org/10.31274/etd-180810-255
dc.identifier.s3bucket isulib-bepress-aws-west
dc.identifier.submissionpath etd/12709
dc.identifier.uri https://dr.lib.iastate.edu/handle/20.500.12876/26898
dc.language.iso en
dc.source.bitstream archive/lib.dr.iastate.edu/etd/12709/Natarajan_iastate_0097E_12957.pdf|||Fri Jan 14 19:28:20 UTC 2022
dc.subject.disciplines Computer Engineering
dc.subject.disciplines Computer Sciences
dc.subject.keywords Peer-to-Peer Systems
dc.subject.keywords Periodic Broadcast
dc.subject.keywords Service Latency
dc.subject.keywords Service Scheduling
dc.subject.keywords Video Services
dc.title Novel Techniques for Large-Scale and Cost-Effective Video Services
dc.type article
dc.type.genre dissertation
dspace.entity.type Publication
relation.isOrgUnitOfPublication f7be4eb9-d1d0-4081-859b-b15cee251456
thesis.degree.level dissertation
thesis.degree.name Doctor of Philosophy
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