Capitalizing on free riders in p2p networks

  • Authors:
  • Yuh-Jzer Joung;Terry Hui-Ye Chiu;Shy Min Chen

  • Affiliations:
  • Dept. of Information Management, National Taiwan University, Taipei, Taiwan;Dept. of Information Management, National Taiwan University and Dept. of Industrial Engineering and Management, MingChi Institute of Technology, Taishan, Taipei, Taiwan;Dept. of Information Management, National Taiwan University and Dept. of Business and Management, MingChi Institute of Technology, Taishan, Taipei, Taiwan

  • Venue:
  • Euro-Par'07 Proceedings of the 13th international Euro-Par conference on Parallel Processing
  • Year:
  • 2007

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Abstract

Free riding is a common phenomenon in P2P networks. Although several mechanisms have been proposed to handle free riding-- mostly to exclude free riders, few of them have actually been adopted in practical systems. This may be attributed to the fact that they are nontrivial, and that completely eliminating free riders could jeopardize the sheer power created by the huge volume of participants in a P2P network. Rather than excluding free riders, in this paper we incorporate and utilize them to provide global index service to the files shared by other peers. The simulation results indicate that our model can significantly boost the search efficiency of a plain Gnutella, and the model is quite resistant to system churn rate and the ratio of free riding.