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Optimizing user quality of experience through overlay routing, bandwith management and dynamic transcoding

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Abstract
Accessing multimedia services via fixed and wireless networks has become common practice. 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). Therefore, the authors 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. This paper introduces a transcoding service for this proxy component which enables the transformation of H.264/AVC video flows to an arbitrary bitrate. Through representative experimental results, the authors 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.
Keywords
H.264/AVC Video Transcoding, Dynamic Rate Shaping, NIProxy, Overlay routing, QoE optimization, Network Traffic Shaping

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Citation

Please use this url to cite or link to this publication:

Chicago
Wijnants, Maarten, Wim Lamotte, Bart De Vleeschauwer, Filip De Turck, Bart Dhoedt, Piet Demeester, Peter Lambert, et al. 2010. “Optimizing User Quality of Experience Through Overlay Routing, Bandwith Management and Dynamic Transcoding.” International Journal of Adaptive, Resilient and Automatic Systems 1 (2): 64–85.
APA
Wijnants, M., Lamotte, W., De Vleeschauwer, B., De Turck, F., Dhoedt, B., Demeester, P., Lambert, P., et al. (2010). Optimizing user quality of experience through overlay routing, bandwith management and dynamic transcoding. INTERNATIONAL JOURNAL OF ADAPTIVE, RESILIENT AND AUTOMATIC SYSTEMS, 1(2), 64–85.
Vancouver
1.
Wijnants M, Lamotte W, De Vleeschauwer B, De Turck F, Dhoedt B, Demeester P, et al. Optimizing user quality of experience through overlay routing, bandwith management and dynamic transcoding. INTERNATIONAL JOURNAL OF ADAPTIVE, RESILIENT AND AUTOMATIC SYSTEMS. 2010;1(2):64–85.
MLA
Wijnants, Maarten, Wim Lamotte, Bart De Vleeschauwer, et al. “Optimizing User Quality of Experience Through Overlay Routing, Bandwith Management and Dynamic Transcoding.” INTERNATIONAL JOURNAL OF ADAPTIVE, RESILIENT AND AUTOMATIC SYSTEMS 1.2 (2010): 64–85. Print.
@article{1146752,
  abstract     = {Accessing multimedia services via fixed and wireless networks has become common practice. 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{\textquoteright}s Quality of Experience (QoE). Therefore, the authors 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. This paper introduces a transcoding service for this proxy component which enables the
transformation of H.264/AVC video flows to an arbitrary bitrate. Through representative experimental results, the authors 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.},
  author       = {Wijnants, Maarten and Lamotte, Wim and De Vleeschauwer, Bart and De Turck, Filip and Dhoedt, Bart and Demeester, Piet and Lambert, Peter and Van de Walle, Dieter and De Cock, Jan and Notebaert, Stijn and Van de Walle, Rik},
  issn         = {1947-9220},
  journal      = {INTERNATIONAL JOURNAL OF ADAPTIVE, RESILIENT AND AUTOMATIC SYSTEMS},
  keyword      = {H.264/AVC Video Transcoding,Dynamic Rate Shaping,NIProxy,Overlay routing,QoE optimization,Network Traffic Shaping},
  language     = {eng},
  number       = {2},
  pages        = {64--85},
  title        = {Optimizing user quality of experience through overlay routing, bandwith management and dynamic transcoding},
  volume       = {1},
  year         = {2010},
}