June 25, 2007 to June 27, 2007
Swaminathan Sivasubramanian , Vrije Universiteit, Amsterdam
Sandjai Bhulai , Vrije Universiteit, Amsterdam
Vivek Rai , Vrije Universiteit, Amsterdam
Maarten van Steen , Vrije Universiteit, Amsterdam
DOI Bookmark: http://doi.ieeecomputersociety.org/10.1109/ICDCS.2007.81
BitTorrent is one of the most popular protocols for content distribution and accounts for more than 15% of the total Internet traffic. In this paper, we present an analytical model of the protocol. Our work differs from previous works as it models the BitTorrent protocol specifically and not as a general file-swarming protocol. In our study, we observe that to accurately model the download process of a BitTorrent client, we need to split this process into three phases. We validate our model using simulations and realworld traces. Using this model, we study the efficiency of the protocol based on various protocol-specific parameters such as the maximum number of connections and the peer set size. Furthermore, we study the relationship between changes in the system parameters and the stability of the protocol. Our model suggests that the stability of BitTorrent protocol depends heavily on the number of pieces a file is divided into and the arrival rate of clients to the network.
Swaminathan Sivasubramanian, Sandjai Bhulai, Vivek Rai, Maarten van Steen, "A Multiphased Approach for Modeling and Analysis of the BitTorrent Protocol", ICDCS, 2007, 27th International Conference on Distributed Computing Systems (ICDCS '07), 27th International Conference on Distributed Computing Systems (ICDCS '07) 2007, pp. 10, doi:10.1109/ICDCS.2007.81