Publication: An optimization framework for QoS-enabled adaptive video streaming over openflow networks
Program
KU-Authors
KU Authors
Co-Authors
Civanlar, Seyhan
Advisor
Publication Date
2013
Language
English
Type
Journal Article
Journal Title
Journal ISSN
Volume Title
Abstract
OpenFlow is a programmable network protocol and associated hardware designed to effectively manage and direct traffic by decoupling control and forwarding layers of routing. This paper presents an analytical framework for optimization of forwarding decisions at the control layer to enable dynamic Quality of Service (QoS) over OpenFlow networks and discusses application of this framework to QoS-enabled streaming of scalable encoded videos with two QoS levels. We pose and solve optimization of dynamic QoS routing as a constrained shortest path problem, where we treat the base layer of scalable encoded video as a level-1 QoS flow, while the enhancement layers can be treated as level-2 QoS or best-effort flows. We provide experimental results which show that the proposed dynamic QoS framework achieves significant improvement in overall quality of streaming of scalable encoded videos under various coding configurations and network congestion scenarios.
Description
Source:
IEEE Transactions on Multimedia
Publisher:
Institute of Electrical and Electronics Engineers (IEEE)
Keywords:
Subject
Computer science, Information systems, Engineering, Software engineering, Telecommunications