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In spite of much progress and many advances, cost-effective, high-qualityvideo delivery over the internet remains elusive. To address this ongoingchallenge, we propose Sunstar, a solution that leverages simultaneous downloadsfrom multiple servers to preserve video quality. The novelty in Sunstar is notso much in its use of multiple servers but in the design of a schedule thatbalances improvements in video quality against increases in (peering) costs.The paper's main contributions are in elucidating the impact on the cost ofvarious approaches towards improving video quality, including the use ofmultiple servers, and incorporating this understanding into the design of ascheduler capable of realizing an efficient trade-off. Our results show thatSunstar's scheduling algorithm can significantly improve performance (up to 50%in some instances) without cost impacts.

Sunstar: A Cost-effective Multi-Server Solution for Reliable Video Delivery