Peer-to-peer file-sharing systems have poor search performance for rare or poorly described files. These files lack a quality or variety of metadata making them hard to match with queries. A server can alleviate this problem by gathering the descriptors used by peers via what we call probe queries, and use these descriptors to improve its own. We consider probe query triggering mechanisms and c...

This paper presents a token-based accounting mechanism that alleviates the free riding problem in P2P networks. The approach is complemented by distributed pricing as a flexible and viable scheme to incite users to share valuable content and to efficiently balance requests among all peers based on economic decisions.

I quantify the relationship between private–network file sharing activity and album sales in the BitTorrent era using a panel of 2,109 albums’ U.S. sales and file sharing downloads during 2008. Exogenous shocks to file sharing capacity address the simultaneity problem. In theory, piracy could crowd out sales by building file sharing capacity or increase them through word of mouth. I find eviden...

Peer 2 Peer over MANETs is the largely popular used pattern of file sharing within MANETs. P2P system is started in the middle of 1990s. P2P system is deployed on the Internet which is formed by creating an overlay network. P2P overlay consists of upper-layer connections among nodes, or peers, which are selfdetermining of the underlay or substrate network, abstract peer’s view of the connection...