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Aidan Walton's Publications

TCP-PARIS: a Parallel Download Protocol for Replicas
Zitatschlüssel KK-TPDPR-05
Autor Karrer, Roger and Knightly, Edward
Buchtitel IEEE International Workshop on Web Content Caching and Distribution (WCW '05)
Seiten 15–25
Jahr 2005
ISBN 0-7695-2455-9
DOI http://dx.doi.org/10.1109/WCW.2005.20
Ort Sophia Antipolis, France
Monat September
Zusammenfassung Parallel download protocols have the potential to reduce file download time and to achieve a server-side load balancing in replica systems, such as peer-to-peer networks, content distribution networks and mirrored servers, by simultaneously establishing connections to multiple replicas and downloading disjoint file parts in parallel. This paper presents TCP-PARIS, a novel parallel download protocol from multiple replicas to one receiver. Because the ideal partitioning of the transfer volume from each server is a dynamic and a difficult-to-predict function of network conditions, server load and data size, TCP-PARIS uses the stream segmentation of TCP and congestion window information to continuously adapt the assigned volume to each server in proportion to the bandwidth-delay product to best approximate the optimal data partitioning. Analytical results, simulation and Internet experiments with a transport-layer implementation characterize the performance and the resource requirements of TCP-PARIS and allow a comparison with related protocols. Extensive simulations with varying network and application parameters show download time reductions of up to 52\% compared to single-flow downloads and up to 52\% compared to related protocols.
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