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hal-00758986, version 1

How much can large-scale Video-On-Demand benefit from users' cooperation?

Delia Ciullo (, http://www-sop.inria.fr/members/Delia.Ciullo/) 1, Valentina Martina () 2, Michele Garetto () 3, Emilio Leonardi () 2

IEEE INFOCOM - 32nd International Conference on Computer Communications (2013) 2724-2732

Résumé : We propose an analytical framework to tightly characterize the scaling laws for the additional bandwidth that servers must supply to guarantee perfect service in peer-assisted Video-on-Demand systems, taking into account essential aspects such as peer churn, bandwidth heterogeneity, and Zipf-like video popularity. Our results reveal that the catalog size and the content popularity distribution have a huge effect on the system performance. We show that users' cooperation can effectively reduce the servers' burden for a wide range of system parameters, confirming to be an attractive solution to limit the costs incurred by content providers as the system scales to large populations of users.

  • 1 :  MAESTRO (INRIA Sophia Antipolis)
  • INRIA
  • 2 :  Department of Electronics [Torino] (DELEN)
  • Politecnico di Torino
  • 3 :  Università degli studi di Torino (UNITO)
  • Università degli studi di Torino
  • Domaine : Informatique/Réseaux et télécommunications
  • Mots-clés : Performance analysis – Peer assisted Video-on-Demand systems – Stochastic models
 
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  • Soumis le : Jeudi 29 Novembre 2012, 16:48:37
  • Dernière modification le : Mercredi 8 Janvier 2014, 17:18:28