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Tradeoffs in Cloud and Peer-assisted Content Delivery Systems
Linköpings universitet, Institutionen för datavetenskap, Databas och informationsteknik. Linköpings universitet, Tekniska högskolan.
KTH Royal Institute of Technology, Stockholm.
University of Saskatchewan, Canada.
NICTA, Sydney, Australia,.
2012 (Engelska)Ingår i: Peer-to-Peer Computing (P2P), 2012: , IEEE , 2012, s. 249-260Konferensbidrag, Publicerat paper (Refereegranskat)
Abstract [en]

With the proliferation of cloud services, cloud-based systems can become a cost-effective means of on-line content delivery. In order to make best use of the available cloud bandwidth and storage resources, content distributors need to have a good understanding of the tradeoffs between various system design choices. In this work we consider a peer-assisted content delivery system that aims to provide guaranteed average download rate to its customers. We show that bandwidth demand peaks for contents with moderate popularity, and identify these contents as candidates for cloud-based service. We then consider dynamic content bundling and cross-swarm seeding, which were recently proposed to improve download performance, and evaluate their impact on the optimal choice of cloud service use. We find that much of the benefits from peer seeding can be achieved with careful torrent inflation, and that hybrid policies that combine bundling and peer seeding often reduce the delivery costs by 20% relative to only using seeding. Furthermore, all these peer-assisted policies reduce the number of files that would need to be pushed to the cloud. Finally, we show that careful system design is needed if locality is an important criterion when choosing cloud-based service provisioning.

Ort, förlag, år, upplaga, sidor
IEEE , 2012. s. 249-260
Nationell ämneskategori
Datavetenskap (datalogi)
Identifikatorer
URN: urn:nbn:se:liu:diva-80315DOI: 10.1109/P2P.2012.6335805ISI: 000312674500031ISBN: 978-1-4673-2860-9 (tryckt)ISBN: e978-1-4673-2861-6 OAI: oai:DiVA.org:liu-80315DiVA, id: diva2:546486
Konferens
12th IEEE International Conference on Peer-to-Peer Computing (P2P 2012), 3-5 September 2012, Tarragona, Spain
Tillgänglig från: 2012-08-23 Skapad: 2012-08-23 Senast uppdaterad: 2018-01-12Bibliografiskt granskad

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Carlsson, Niklas

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