Abstract

Video on demand (VoD) is an important service for the next generation networks. In the VoD servers. it is not efficient to preserve all copies of videos. The videos could be divided into the popular ones and less popular ones according to their playing ratios. Since the popular videos are accessed frequently, they should be placed on every server, the cache server. Oppositely, the unpopular one are placed on the central server. In this work, we propose a detailed mathematical model for the hierarchical facility location problem (FLP) encountered in the cache/central server deployment. A linear model for hierarchical FLP is presented and could obtain the feasible solution easily. The experimental results demonstrate the effectiveness.

Talk to us

Join us for a 30 min session where you can share your feedback and ask us any queries you have

Schedule a call

Disclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.