Home-Box-assisted content delivery network for Internet Video-on-Demand services
Résumé
The compelling success of Internet Video-on-Demand (VoD) services imposes hard requirements on the current Internet in terms of servers and network capabilities (e.g. for load, bandwidth). Service scalability becomes then a crucial issue for which server replication acts as a commonly proposed solution. However, this technique brings new challenges in terms of server placement and selection. This paper presents an enhanced service oriented architecture permitting Service Providers (SP) to exploit a new virtual Home-Box (HB) layer for distributing efficient and scalable Future Internet VoD streaming services. Such proposed architecture enables strong collaboration between User and Service Environments for ensuring better Quality of Services to End-Users. The paper proposes an adaptive popularity-based video caching strategy among the introduced HB layer and compares it, through simulation, to existing CDNs' one. The obtained results highlight a very promising aspect for the introduction of HBs-assisted CDNs in the video delivery chain.