GLOBECOM 2016, IEEE Global Communications Conference, Exhibition and Industry Forum, 4-8 December 2016, Washington, USA
We focus on the provision of Content-Delivery-Network-as-a-Service (CDNaaS) functionality for video distribution and, in particular, on how to appropriately decide on
the amount of computing resources to allocate to a CDNaaS instance to satisfy Quality of Experience (QoE) and resource capacity constraints. Our work is put in the context of a telco cloud environment: The telco cloud is open to content provides to request the dynamic deployment of a virtual CDN infrastructure on top of it, in order to cover a target user demand with a desired service quality at the regions where the telecom operator
has presence. We perform testbed experiments to quantify the dependence of user experience on the load of a virtualized video service, and apply our measurement results to drive a QoE-aware virtual CPU resource allocation algorithm. Using simulation, we
show our algorithm to optimally address the quality-cost tradeoff, demonstrating the benefits of QoE awareness.
Systèmes de Communication
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