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Optimal Content Distribution and Multi-resource Allocation in Software Defined Virtual CDNs

  • Jaime Llorca
  • Antonia M. Tulino
  • Antonio Sforza
  • Claudio SterleEmail author
Conference paper
Part of the Springer Proceedings in Mathematics & Statistics book series (PROMS, volume 217)

Abstract

A software defined virtual content delivery network (SDvCDN) is a virtual cache network deployed fully in software over a programmable cloud network infrastructure that can be elastically consumed and optimized using global information about network conditions and service requirements. We formulate the joint content-resource allocation problem for the design of SDvCDNs, as a minimum cost mixed-cast flow problem with resource activation decisions. Our solution optimizes the placement and routing of content objects along with the allocation of the required virtual storage, compute, and transport resources, capturing activation and operational costs, content popularity, unicast and multicast delivery, as well as capacity and latency constraints. Numerical experiments confirm the benefit of elastically optimizing the SDvCDNs configuration, compared to the dedicated provisioning of traditional CDNs.

Keywords

Softwared defined virtual CDN Flow-location-routing problem 

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Copyright information

© Springer International Publishing AG 2017

Authors and Affiliations

  • Jaime Llorca
    • 1
  • Antonia M. Tulino
    • 1
    • 2
  • Antonio Sforza
    • 2
  • Claudio Sterle
    • 2
    Email author
  1. 1.Nokia Bell LabsCrawford HillUSA
  2. 2.Department of Electrical Engineering and Information TechnologyUniversity of NaplesNaplesItaly

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