Peer-Assisted Content Distribution on a Budget

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Executive Summary

In this paper, the authors propose a general framework and present a prototype implementation of peer-assisted content delivery application. Their system - called Cyclops - dynamically adjusts the bandwidth consumed by content servers (which represents the bulk of content delivery costs) to feed a set of swarming clients, based on a feedback signal that gauges the real-time health of the swarm. Their extensive evaluation of Cyclops in a variety of settings - including controlled PlanetLab and live Internet experiments involving thousands of users - shows a significant reduction in content distribution costs when compared to existing swarming solutions, with a minor impact on the content delivery times.

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