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The Economics of CDNs and Their Impact on on Service Fairness

Eric Gourdin 1 Patrick Maillé 2, 3, * Gwendal Simon 3, 4 Bruno Tuffin 5
* Corresponding author
2 OCIF - Objets communicants pour l'Internet du futur
IRISA-D2 - RÉSEAUX, TÉLÉCOMMUNICATION ET SERVICES, IMT Atlantique - IMT Atlantique Bretagne-Pays de la Loire
4 ADOPNET - Advanced technologies for operated networks
UR1 - Université de Rennes 1, IMT Atlantique - IMT Atlantique Bretagne-Pays de la Loire, IRISA-D2 - RÉSEAUX, TÉLÉCOMMUNICATION ET SERVICES
5 DIONYSOS - Dependability Interoperability and perfOrmance aNalYsiS Of networkS
Abstract : Content Delivery Networks (CDN) have become key telecommunication actors. They contribute to improve significantly the quality of services delivering content to end users. However, their impact on the ecosystem raises concerns about their " neutrality " , and therefore the question of their inclusion in the network neutrality debate becomes relevant. This paper aims at analyzing the impact of a revenue-maximizing CDN on some other major actors, namely, the end-users, the network operators and the content providers, at comparing the outcome with that of a neutral behavior, and at investigating whether some regulation should be introduced. We present a mathematical model and show that there exists a unique optimal revenue-maximizing policy for a CDN actor, in terms of dimensioning and allocation of its storage capacity, and depending on parameters such as prices for service/transport/storage. Numerical experiments are then performed with both synthetic data and real traces obtained from a major VoD provider. In addition, using the real traces, we compare the revenue-based policy with policies based on several fairness criteria.
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Submitted on : Tuesday, November 14, 2017 - 8:03:33 AM
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Eric Gourdin, Patrick Maillé, Gwendal Simon, Bruno Tuffin. The Economics of CDNs and Their Impact on on Service Fairness. IEEE Transactions on Network and Service Management, IEEE, 2017, 14 (1), pp.22-33. ⟨10.1109/TNSM.2017.2649045⟩. ⟨hal-01398923v2⟩



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