Performance Benchmark of Transcoding as a Virtual Network Function in CDN as a Service Slicing

Research output: Chapter in Book/Report/Conference proceedingConference contributionScientificpeer-review

11 Citations (Scopus)
227 Downloads (Pure)


Content delivery networks (CDNs) have been widely implemented to provide scalable cloud services. Such networks support resource pooling by allowing virtual machines to be dynamically running or stopping according to current users' demands. Recently, there has been an increasing interest in Network Function Virtualization (NFV) as an emerging technology that aims to reduce cost, enable scalability and flexibility by decoupling network functions from the underlying hardware. In this regard, this paper designs a novel architecture to provide CDN Slices as a Service and that is across multiple administrative cloud domains. The architecture is aligned with the NFV Management and Orchestration (MANO) models. The proposed platform consists of three virtual network functions (VNFs), namely virtual caches, virtual video streamers, and virtual video transcoders. Regarding the latter, the paper also proposes a scheme for load balancing the transcoding tasks of the uploaded videos over a distributed network of virtual transcoders. In this article, an extensive benchmark analysis is conducted in order to study the virtual transcoding behavior in different cloud environments. The experiment evaluations provides a solid knowledge base to predict the estimated transcoding time for an optimal workload management of videos, aiming to optimize the incurred efficient cost in terms of delivery time and latency.
Original languageEnglish
Title of host publication 2018 IEEE Wireless Communications and Networking Conference (WCNC)
Place of PublicationUnited States
Number of pages6
ISBN (Electronic)978-1-5386-1734-2
ISBN (Print)978-1-5386-1735-9
Publication statusPublished - 2018
MoE publication typeA4 Article in a conference publication
EventIEEE Wireless Communications and Networking Conference - Barcelona, Spain
Duration: 15 Apr 201818 Apr 2018

Publication series

NameIEEE Wireless Communications and Networking Conference
ISSN (Print)1525-3511
ISSN (Electronic)1558-2612


ConferenceIEEE Wireless Communications and Networking Conference
Abbreviated titleWCNC


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