In this paper we present ToroVerde, a novel push-based peer-to-peer (P2P) content distribution application exploiting the digital fountain concept through the use of rateless codes. We provide the protocol specification, then describe the simulator and the complete prototype we have developed for Planetlab deployment and testing. To this end, we consider flash crowd and steady arrival patterns as well as highly churning systems to perform a preliminary analysis of the potential advantages of introducing rateless codes. We present results from PlanetLab experiments compared against performance of BitTorrent, that is widely considered as the reference system for content distribution. We also present a few simulation results showing the behavior of ToroVerde as the number of peers in the systems increases. Our results suggest that ToroVerde has the potential of reducing the average download time for small-to-medium sized files in overlays composed of a few hundred peers with a small increase of the communication overhead.

Fountains vs Torrents: the P2P ToroVerde Protocol

MAGNETTO, ANDREA;SPOTO, SALVATORE;GAETA, Rossano;GRANGETTO, Marco;SERENO, Matteo
2010

Abstract

In this paper we present ToroVerde, a novel push-based peer-to-peer (P2P) content distribution application exploiting the digital fountain concept through the use of rateless codes. We provide the protocol specification, then describe the simulator and the complete prototype we have developed for Planetlab deployment and testing. To this end, we consider flash crowd and steady arrival patterns as well as highly churning systems to perform a preliminary analysis of the potential advantages of introducing rateless codes. We present results from PlanetLab experiments compared against performance of BitTorrent, that is widely considered as the reference system for content distribution. We also present a few simulation results showing the behavior of ToroVerde as the number of peers in the systems increases. Our results suggest that ToroVerde has the potential of reducing the average download time for small-to-medium sized files in overlays composed of a few hundred peers with a small increase of the communication overhead.
18th Annual Meeting of the IEEE International Symposium on Modeling, Analysis and Simulation of Computer and Telecommunication Systems (Mascots 2010)
Miami Beach, Florida,USA
17-19 Agosto, 2010
Proceedings of The 18th Annual Meeting of the IEEE International Symposium on Modeling, Analysis and Simulation of Computer and Telecommunication Systems (Mascots 2010)
IEEE Computer Soc.
417
420
9780769541976
A. Magnetto; S. Spoto; R. Gaeta; M. Grangetto; M. Sereno
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/2318/78108
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