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Multimedia Tools and Applications

, Volume 78, Issue 6, pp 6805–6825 | Cite as

On the modelling of CDNaaS deployment

  • Utku BulkanEmail author
  • Tasos Dagiuklas
  • Muddesar Iqbal
Article
  • 54 Downloads

Abstract

With the increasing demand for over the top media content, understanding user perception and Quality of Experience (QoE) estimation have become a major business necessity for service providers. Online video broadcasting is a multifaceted procedure and calculation of performance for the components that build up a streaming platform requires an overall understanding of the Content Delivery Network as a service (CDNaaS) concept. Therefore, to evaluate delivery quality and predicting user perception while considering NFV (Network Function Virtualization) and limited cloud resources, a relationship between these concepts is required. In this paper, a generalized mathematical model to calculate the success rate of different tiers of online video delivery system is presented. Furthermore, an algorithm that indicates the correct moment to switch between CDNs is provided to improve throughput efficiency while maintaining QoE and keeping the cloud hosting costs as lowest possible.

Keywords

Content delivery network (CDN) OTT streaming Live streaming Online video platform QoE User perception Subjective analysis Analytical modelling 

Notes

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Copyright information

© Springer Science+Business Media, LLC, part of Springer Nature 2018

Authors and Affiliations

  1. 1.SuITE Research Group, Division of Computer ScienceLondon South Bank UniversityLondonUK

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