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Peer-to-Peer Computing, IEEE International Conference on (2006)
Cambridge, United Kingdom
Sept. 6, 2006 to June 8, 2006
ISBN: 0-7695-2679-9
pp: 153-160
Eric Weigle , University of California, San Diego, USA
Matti Hiltunen , AT&T Labs - Research
Rick Schlichting , AT&T Labs - Research
Vinay A. Vaishampayan , AT&T Labs - Research
Andrew A. Chien , University of California, San Diego, USA
Media companies (and other organizations with large amounts of digital content) require prompt broadcast of extremely large files from a single source to a collection of geographically dispersed destinations. Due to the high cost of terrestrial networks of sufficient bandwidth, satellite networks are commonly used for such transfers. However, current satellite transfers rely on expensive error correction via forward error correction and whole-file retransmission. This paper presents a new, hybrid solution combining the advantages of satellite and terrestrial networks to provide cost-effective reliable file transfer. Specifically, we propose a new peer-to-peer scheme exploiting fast terrestrial networks and multiple receivers to recover from high loss rates (5% or more) in near real-time (latency \le400ms). This solution is efficient, robust under variable packet loss and connectivity, user tunable, scales well, and doubles bandwidth compared to existing approaches. The system has been validated via extensive simulations using a terrestrial network based on the AT&T common backbone core network.
hybrid network, peer-to-peer, broadcast, content distribution

V. A. Vaishampayan, R. Schlichting, A. A. Chien, M. Hiltunen and E. Weigle, "Peer-to-Peer Error Recovery for Hybrid Satellite-Terrestrial Networks," 2006 6th IEEE International Conference on Peer-to-Peer Computing(P2P), Cambridge, 2006, pp. 153-160.
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