This Article 
   
 Share 
   
 Bibliographic References 
   
 Add to: 
 
Digg
Furl
Spurl
Blink
Simpy
Google
Del.icio.us
Y!MyWeb
 
 Search 
   
36th Annual Hawaii International Conference on System Sciences (HICSS'03) - Track 7
Big Island, Hawaii
January 06-January 09
ISBN: 0-7695-1874-5
Lakshmish Ramaswamy, Georgia Institute of Technology
Ling Liu, Georgia Institute of Technology
Most of the research in the field of peer-to-peer file sharing systems has concentrated on performance issues such as efficient file lookup, replicating files to improve file download speeds etc. However there is a new challenge that questions the very existence and usefulness of such systems in the form of "Free Riding". This paper studies the seriousness of the negative impact that free riding can have in a P2P file sharing system. We introduce the concept of utility function to measure the usefulness of peers to the system as a whole, and describe a scheme based on this concept to control free riding. A simple utility function is described to illustrate the scheme. We design and develop a simulation model to study various patterns of sharing behaviors among the peers in a file sharing community and their impact on the system. A set of experimental results is reported. The experiments indicate that the utility based free riding control can increase the lifetime of the system by 10 times, even with a simple utility function.
Citation:
Lakshmish Ramaswamy, Ling Liu, "Free Riding: A New Challenge to Peer-to-Peer File Sharing Systems," hicss, vol. 7, pp.220, 36th Annual Hawaii International Conference on System Sciences (HICSS'03) - Track 7, 2003
Usage of this product signifies your acceptance of the Terms of Use.