A secondary market metaphor for content delivery networks

摘要

A Secondary Market (SM) mechanism is used to allow the exchange of unused resources between Origin Servers (content-generating entities) that claim and reserve resources from Content Delivery Networks (CDNs). Using a Predictive Reservation Scheme, network and disk resources are being monitored through well-established techniques (Kernel Regression Estimators) in a given time frame. We show that the SM mechanism significantly improves the efficiency and robustness of our Predictive Reservation Scheme by allowing fast exchange of unused resources between the Origin Servers (CDN Clients), either by implementing socially optimal practices or by allowing automatic electronic auctions at the end of day (EOD) or at shorter time intervals. Therefore, all the involved players (including the CDN itself) benefit from the rationalized use of CDN resources.