An SDN-approach for QoE management of multimedia services using resource allocation
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Date
2020
Journal Title
Journal ISSN
Volume Title
Publisher
University of Plymouth
Abstract
Future networks will be accompanied by new het-
erogeneous requirements in terms of end-users Quality of Expe-
rience (QoE) due to the increasing number of application sce-
narios being deployed. Network softwarization technologies such
as Software Defined Networks (SDNs) and Network Function
Virtualization (NFV) promise to provide these capabilities. In
this paper, a novel QoE-driven resource allocation mechanism
is proposed to dynamically assign tasks to virtual network
nodes in order to achieve an optimized end-to-end quality. The
aim is to find the best combination of network node functions
that can provide an optimized level of QoE to the end users
though node cooperation. The service in question is divided in
tasks and the neighbor nodes negotiate the assignment of these
considering the final quality. In the paper we specifically focus
on the video streaming service. We also show that the agility
provided by SDN/NFV is a key factor for enhancing video quality,
resource allocation and QoE management in future networks.
Preliminary results based on the Mininet network emulator
and the OpenDaylight controller have shown that our approach
can significantly improve the quality of a transmitted video by
selecting the best path with normalized QoS values.
Description
Journal article
Keywords
SDN, NFV, Multimedia Services, Video quality, QoE, Resource allocation