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Please use this identifier to cite or link to this item: http://hdl.handle.net/1942/9164

Title: Optimizing User QoE through Overlay Routing, Bandwidth Management and Dynamic Transcoding
Authors: WIJNANTS, Maarten
LAMOTTE, Wim
DE VLEESCHAUWER, Bart
DE TURCK, Filip
DHOEDT, Bart
DEMEESTER, Piet
LAMBERT, Peter
VAN DE WALLE, Dieter
DE COCK, Jan
NOTEBAERT, Stijn
VAN DE WALLE, Rik
Issue Date: 2008
Publisher: IEEE
Citation: Proceedings of The 2nd International Workshop on Adaptive and DependAble Mobile Ubiquitous Systems (ADAMUS 2008). p. 557-563.
Abstract: More and more, multimedia services are being accessed via fixed and mobile networks. These services are typically much more sensitive to packet loss, delay and/or congestion than traditional services. In particular, multimedia data is often time critical and, as a result, network issues are not well tolerated and significantly deteriorate the user’s Quality of Experience (QoE). We therefore propose a QoE optimization platform that is able to mitigate problems that might occur at any location in the delivery path from service provider to customer. More specifically, the distributed architecture supports overlay routing to circumvent erratic parts of the network core. In addition, it comprises proxy components that realize last mile optimization through automatic bandwidth management and the application of processing on multimedia flows. In this paper we introduce a transcoding service for this proxy component which enables the transformation of H.264/AVC video flows to an arbitrary bit rate. Through representative experimental results, we illustrate how this addition enhances the QoE optimization capabilities of the proposed platform by allowing the proxy component to compute more flexible and effective bandwidth distributions.
URI: http://hdl.handle.net/1942/9164
DOI: 10.1109/WOWMOM.2008.4594883
ISI #: 000264285000072
ISBN: 978-1-4244-2100-8
ISSN: 1571-5078
Category: C1
Type: Proceedings Paper
Validation: ecoom, 2010
Appears in Collections: Research publications

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