Efficient simulation of large-scale p2p networks: packet-level vs. flow-level simulations
Proceedings of the second workshop on Use of P2P, GRID and agents for the development of content networks
Fair resource allocation in peer-to-peer networks (extended version)
Computer Communications
Bandwidth trading in BitTorrent-like P2P networks for content distribution
Computer Communications
Packet and flow level simulations of BitTorrent-like P2P networks
Multiagent and Grid Systems - Content management and delivery through P2P-based content networks
TCPeer: rate control in P2P over IP networks
ITC20'07 Proceedings of the 20th international teletraffic conference on Managing traffic performance in converged networks
A novel dynamic pricing scheme for contributing peers in the VoD system
Multimedia Tools and Applications
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Bandwidth trading schemes give peers an incentive to provide upload bandwidth to other peers in a P2P network for fast file distribution. A popular example is the tit-fortat strategy used in the BitTorrent protocol. Although this game theoretical scheme provides an incentive to peers to contribute resources to the network it does not prevent unfairness and the performances of peers vary considerably. Therefore, we propose two new trading schemes, which are based on pricing. One uses explicit price information whereas the other scheme uses the download rates from other peers as the price. For both distributed algorithms the stable point provides a fair resource allocation as well as a Nash Equilibrium. I.e. fairness is preserved although peers behave selfishly and try to maximise their own download rates only. We compare both pricing schemes with BitTorrent in simulations of static and dynamic networks. The pricing algorithms outperform BitTorrent with respect to fairness. With explicit prices the download rates converge faster to the fair equilibrium than with implicit ones.