Research Article
Session based access control in content delivery networks in presence of congestion
@INPROCEEDINGS{10.1109/QSHINE.2004.49, author={N. Bartolini and E. Casalicchio and I. Chlamtac}, title={Session based access control in content delivery networks in presence of congestion}, proceedings={1st International ICST Conference on Quality of Service in Heterogeneous Wired/Wireless Networks}, publisher={IEEE}, proceedings_a={QSHINE}, year={2004}, month={12}, keywords={}, doi={10.1109/QSHINE.2004.49} }- N. Bartolini
E. Casalicchio
I. Chlamtac
Year: 2004
Session based access control in content delivery networks in presence of congestion
QSHINE
IEEE
DOI: 10.1109/QSHINE.2004.49
Abstract
To ensure probabilistic guarantees on quality of service in content delivery networks (CDN), an access control support is needed that takes into account a proper differentiation of requests and performs session based decisions, managing different types of services and different service phases. In this paper we introduce a CDN architecture with access control capabilities at session aware access routers. We formulate a Markov modulated Poisson decision process for access control that captures the heterogeneity of multimedia services and the variable availability of resources due to the network congestions that characterize a non-dedicated network environment. The structural properties of the optimal solutions are studied and considered as the basis for the formulation of heuristics that perform close to the optimal policy.