logo EDITE Walid BENCHAITA
Identité
Walid BENCHAITA
État académique
Thèse soutenue le 2016-12-09
Sujet: Auto-stabilisation et stratégies d'orchestration dans les réseaux autonomiques
Direction de thèse:
Laboratoire:
Voisinage
Ellipse bleue: doctorant, ellipse jaune: docteur, rectangle vert: permanent, rectangle jaune: HDR. Trait vert: encadrant de thèse, trait bleu: directeur de thèse, pointillé: jury d'évaluation à mi-parcours ou jury de thèse.
Productions scientifiques
oai:hal.archives-ouvertes.fr:hal-01349026
Enhancing Content Distribution through Information-Aware Mechanisms
International audience
Densely-deployed Content Delivery Network (CDN) solutions are used today for delivering a significant fraction of the Internet traffic through replication mechanisms.However, these networks show technological limitations when dealing with the proliferation of rich media-enabled applications such as video streaming.This paper introduces a new approach to content delivery incorporating Information-Centric Networking principles without requiring any change in the underlying network. This solution improves content delivery performance and enables the implementation of cost efficient request routing strategies. We also develop an on-line algorithm based on Lyapunov optimization theory which allows to dynamically generate effective strategies in order to satisfy operator's objectives.By using real video streaming request traces, it has been shown that the global hit ratio can be increased up to 100\% while delivering the content 30\% faster compared to currently deployed content delivery schemes. Furthermore, the proposed approach offers stable behavior during peak traffic.
CloudNet http://hal.upmc.fr/hal-01349026 CloudNet, Oct 2016, Pisa, Italy. <http://cloudnet2016.ieee-cloudnet.org/> http://cloudnet2016.ieee-cloudnet.org/ARRAY(0x7f547088e2b0) 2016-10-03
oai:hal.archives-ouvertes.fr:hal-01272045
Stability and optimization of DNS-based request redirection in CDNs
International audience
Content Delivery Network (CDN) solutions have been progressively integrated to many network infrastructures. However, they show technological limitations when dealing with an increasing number of bandwidth-hungry and demanding applications. One of the most effective ways to improve the performance of a CDN is to efficiently manage its traffic by implementing relevant request routing solutions. To this end, we present in this paper a flexible scheme and an optimization algorithm, based on Lyapunov theory, for request routing in CDNs. Our online approach provides a stable quality of service to clients, while improving content delivery delays. It also reduces data transport costs for operators and outperforms existing techniques in terms of peak traffic management.
ICDCN '16 Proceedings of the 17th International Conference on Distributed Computing and Networking International Conference on Distributed Computing and Networking http://hal.upmc.fr/hal-01272045 International Conference on Distributed Computing and Networking , Jan 2016, Singapore, Singapore. ACM, ICDCN '16 Proceedings of the 17th International Conference on Distributed Computing and Networking pp.11, 2016, ICDCN '16 Proceedings of the 17th International Conference on Distributed Computing and Networking <10.1145/2833312.2833455>ARRAY(0x7f54707d0c50) 2016-01-04
Soutenance
Thèse: AUTO-STABILISATION ET STRATEGIES D'ORCHESTRATION DANS LES RESEAUX AUTONOMIQUES.
Soutenance: 2016-12-09
Rapporteurs: Johanne COHEN    Vania CONAN