Improving BitTorrent: a simple approach

  • Authors:
  • Alix L. H. Chow;Leana Golubchik;Vishal Misra

  • Affiliations:
  • Univ. of Southern California;Univ. of Southern California;Columbia University

  • Venue:
  • IPTPS'08 Proceedings of the 7th international conference on Peer-to-peer systems
  • Year:
  • 2008

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Abstract

Measurement studies have shown that real world BitTorrent (BT) systems exhibit high seed capacity. Thus, appropriate use of seed capacity can have a significant effect on BT performance. Moreover, seed capacity is also easily exploitable by free-riders, and such free-riding clients exist out in the wild today. In this paper, we propose a simple and scalable approach that makes more intelligent use of seed capacity by hurting free-riders, without their explicit identification, while improving the performance of contributing nodes. The effectiveness of our approach is studied via extensive simulations.