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Reducing Source Load in BitTorrent

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Permanent URL	http://hdl.lib.byu.edu/1877/2563
Title	Reducing Source Load in BitTorrent
BYU Creator	Sanderson, Brian Zappala, Daniel
Keywords	torrenting; BitTorrent; source load; web servers
Description/Abstract	One of the main goals of BitTorrent is to reduce load on web servers by encouraging clients to share content between themselves. However, BitTorrent’s current design relies heavily on the original source to serve a disproportionate amount of the file. We modify standard BitTorrent software so that a source determines the current popularity of each of the blocks of a file and tries to serve only those blocks that are rare. Using extensive PlanetLab experiments, we show that this modification can save a significant amount of the source’s upload bandwidth, with the tradeoff of some increased peer download time. In addition, there are individual experiments that both save bandwidth and have a faster download time than standard BitTorrent. We examine some of the more exceptional experiments, explore alternative algorithms, and provide insight for further improvements.
Source	Brian Sanderson and Daniel Zappala, "Reducing Source Load in BitTorrent", The 18th International Conference on Computer Communications and Networks (ICCCN 2009), August 2009.;
Publisher	IEEE
Date Original	2009-08
Date Digital	2010-10-05
Language	English eng en
Publication Type	Articles
Type	Text
Format	application/pdf
Owning Institution	Brigham Young University
BYU College	College of Physical and Mathematical Sciences
BYU Department	Computer Science
Copyright Status	(c) 2009 IEEE. Personal use of this material is permitted. However, permission to reprint/republish this material for advertising or promotional purposes or for creating new collective works for resale or redistribution to servers or lists, or to reuse any copyrighted component of this work in other works must be obtained from the IEEE.;
Copyright Use Information	http://www.lib.byu.edu/generic_copyright.html

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