AN EFFICIENT CDN PLACEMENT ALGORITHM FOR HIGH-QUALITY TV CONTENT

摘要

Content Distribution Networks (CDNs) are used extensively on the WWW to relieve hot spots and reduce client latency when delivering web documents, but recently their role has been extended to the delivery of streaming multimedia content. Efficient placement of replicas in a CDN is very important, particularly when the content is large in size as is the case with high-quality TV content. This paper outlines a scalable and efficient algorithm for the placement of video content in a Video CDN (VCDN). This paper evaluates the effectiveness of the placement algorithm, detailing the important parameters associated with the algorithm. The VCDN placement algorithm is also compared with the well known closest-proxy algorithm to evaluate its effectiveness.