By harnessing the collective storage capacity and bandwidth of Internet users, peer-to-peer le sharing systems have proved invaluable for storage and distribution of les. However, such systems have a clear and fundamental problem: users have an obvious incentive to download, but no inherent incentive to upload. In naive le sharing protocols, this results in a prisoner's dilemma: the pareto-opti...

In this paper we describe a prototype of a simulation framework and some ideas which are to be used to study performance of a P2P TV system in a controllable and adjustable environment. We created a simplified model describing live video distribution in a P2P TV system. Using the model we analyse how some of the system parameters influence its behaviour. We present the preliminary results obtai...

J.M. Buld u, Dante R. Chialvo, Claudio R. Mirasso, M.C. Torrent, and J. Garc a-Ojalvo, Departament de F sica i Enginyeria Nuclear, Universitat Polit ecnica de Catalunya, Colom 11, E-08222 Terrassa, Spain Departament de F sica, Universitat de les Illes Balears, E-07071 Palma de Mallorca, Spain 3 Department of Physiology, Northwestern University, Chicago, Illinois, 60611, USA 4 Center for Studies...

P2P downloads still represent a large portion of today’s Internet traffic. More than 100 million users operate BitTorrent and generate more than 30% of the total Internet traffic [7]. Recently, a significant research effort has been done to develop tools for automatic classification of Internet traffic by application [9, 8, 11]. The purpose of the present work is to provide a framework for subc...

BitTorrent communities, both public and private, are immensely popular in the Internet, with tens of millions of users simultaneously active at any given moment. Public and private BitTorrent communities are managed in different ways – for instance, some private communities enforce sharing ratios, have strict rules for content management, have a certain level of community oversight, and maintai...