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Using Torrent Inflation to Efficiently Serve the Long Tail in Peer-assisted Content Delivery Systems
University of Calgary, Canada.
University of Saskatchewan, Canada.
NICTA. Sydney, Australia.
2010 (English)In: NETWORKING 2010: 9th International IFIP TC 6 Networking Conference, Chennai, India, May 11-15, 2010. Proceedings / [ed] Mark Crovella, Laura Marie Feeney, Dan Rubenstein and S. V. Raghavan, Springer Berlin/Heidelberg, 2010, 1-14 p.Chapter in book (Refereed)
Abstract [en]

A peer-assisted content delivery system uses the upload bandwidth of its clients to assist in delivery of popular content. In peer-assisted systems using a BitTorrent-like protocol, a content delivery server seeds the offered files, and active torrents form when multiple clients make closely-spaced requests for the same content. Scalability is achieved in the sense of being able to accommodate arbitrarily high request rates for individual files. Scalability with respect to the number of files, however, may be much more difficult to achieve, owing to a “long tail” of lukewarm or cold files for which the server may need to assume most or all of the delivery cost. This paper first addresses the question of how best to allocate server resources among multiple active torrents. We then propose new content delivery policies that use some of the available upload bandwidth from currently downloading clients to “inflate” torrents for files that would otherwise require substantial server bandwidth. Our performance results show that use of torrent inflation can substantially reduce download times, by more than 50% in some cases.

Place, publisher, year, edition, pages
Springer Berlin/Heidelberg, 2010. 1-14 p.
Series
Lecture Notes in Computer Science, ISSN 0302-9743 (print), 1611-3349 (online) ; 6091
Keyword [en]
Peer-assisted - multi-torrent - torrent inflation - long tail
National Category
Engineering and Technology
Identifiers
URN: urn:nbn:se:liu:diva-64640DOI: 10.1007/978-3-642-12963-6_1ISBN: 978-3-642-12962-9 (print)ISBN: 3-642-12962-5 (print)OAI: oai:DiVA.org:liu-64640DiVA: diva2:393217
Available from: 2011-01-29 Created: 2011-01-29 Last updated: 2012-09-17

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Carlsson, Niklas

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CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • harvard1
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • oxford
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf