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Free-Riding Analysis of BitTorrent-Like Peer-to-Peer Networks

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4 Author(s)
Jiadi Yu ; Dept. of Comput. Sci. & Eng., Shanghai Jiao Tong Univ. ; Minglu Li ; Feng Hong ; Guangtao Xue

BitTorrent is a very popular P2P file sharing system. It has been successful at distributing large files quickly and efficiently. Embedded in BitTorrent is a set of incentive mechanisms to encourage sharing and contribute, and prevent systematic free-riding. In this paper, a fluid model with two classes of peers is used to capture the effect of free-riding in a BitTorrent system. With the model, we explore how does free-riding influenced the BitTorrent system. From results, it is shown that BitTorrent mechanism is successful to guard against free-riding. Finally, we discuss the dying process of a BitTorrent system and the probability of system dead that is induced by free-riding

Published in:

Services Computing, 2006. APSCC '06. IEEE Asia-Pacific Conference on

Date of Conference:

Dec. 2006