Protecting Free Expression Online with Freenet
IEEE Internet Computing
On Cooperative Content Distribution and the Price of Barter
ICDCS '05 Proceedings of the 25th IEEE International Conference on Distributed Computing Systems
Incentives in BitTorrent induce free riding
Proceedings of the 2005 ACM SIGCOMM workshop on Economics of peer-to-peer systems
Establishing darknet connections: an evaluation of usability and security
Proceedings of the 3rd symposium on Usable privacy and security
Characterizing residential broadband networks
Proceedings of the 7th ACM SIGCOMM conference on Internet measurement
Rescuing Tit-for-Tat with Source Coding
P2P '07 Proceedings of the Seventh IEEE International Conference on Peer-to-Peer Computing
TRIBLER: a social-based peer-to-peer system: Research Articles
Concurrency and Computation: Practice & Experience - Recent Advances in Peer-to-Peer Systems and Security (P2P 2006)
Planetary-scale views on a large instant-messaging network
Proceedings of the 17th international conference on World Wide Web
One hop reputations for peer to peer file sharing workloads
NSDI'08 Proceedings of the 5th USENIX Symposium on Networked Systems Design and Implementation
Do incentives build robustness in bit torrent
NSDI'07 Proceedings of the 4th USENIX conference on Networked systems design & implementation
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In peer-to-peer content delivery systems, such as BitTorrent, there may exist nodes that are non-cooperative and do not contribute their upload bandwidth to the system while still downloading content from others. The current widely used countermeasures against this freeriding behavior have been shown to be ineffective. In this paper, we address the problem by leveraging the trust latent in the social networks and explicitly incorporating the social links as part of the BitTorrent content distribution infrastructure. Our extensive system evaluation produces several insights. First, the social network topology alone without the trackers is an efficient and scalable content distribution medium. Second, thanks to the cooperative social links, BitTorrent's robustness to freeriding significantly improves. Finally, we find that a hybrid solution in which peers download from both their friends and other peers obtained from the trackers has the highest robustness to freeriding, shortest download completion times and the most balanced upload bandwidth utilization.