Abstract

Content Delivery Network (CDN) system aims to upgrade the performance of content delivery to end-users of popular websites. It replicates the contents at different geographic locations to serve from the point closer to them. It supports to bring network and as a result web performance to next level. For proper utilization of CDN resources, it is significant to efficiently distribute popular contents over surrogate servers. Most of the CDNs have a large number of surrogate servers. This requires coordination between the surrogate servers to improve overall capability of a CDN system while limiting the cost. This paper suggests a technique to efficiently distribute contents over surrogate servers that cooperate with one another to improve quality of service (QoS) of web content delivery to clients (end-users) in terms of response time.

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