Optimally designing virtualized CDN

摘要

Using virtualized CDN such as Amazon CloudFront in which cache servers are provided on virtual machines, content providers can flexibly select the regions of using cache servers according to the geographical demand pattern of their users, so they can expect to reduce the cost of using CDN. However, to maximize the profit of content providers, they need to carefully select the locations of cache servers which affect the quality perceived by users as well as the total cost. We propose a method of optimally selecting the geographical regions to use cache servers maximizing the profit of content providers.