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 Thursday, March 28, 2013

Chemnitz University of Technology, Germany, an ITU-T academic member, made a significant contribution to the current meeting of ITU-T Study Group 12, on a method of video quality of experience (QoE) monitoring which drills deep into network performance, identifying service degradation by precisely calculating video stalling and rebuffering times.

Progressive download video services, such as YouTube, are responsible for a major part of the data volume in the telecommunication networks. Streaming video quality depends on sustainable throughput during transmission. To ensure acceptable video quality, the customer's perceived quality (QoE) needs to be monitored.

Experts have been calling for algorithms that provide measurement results that can give insight to end user QoE, that can in turn be used for network planning and traffic engineering. The Chemnitz University contribution was timely as a separate contribution to the same meeting called for exactly such a method to be developed.

The contribution proposes a network-based parameter-extraction applicable to video QoE estimation that allows for transparent monitoring without the need to install tools at end-user devices or on the server.

Study Group 12 has considered the contribution as part of a new international standard (ITU-T Recommendation). Consequently the two authors, Thomas Knoll and Marcus Eckert, will have their contribution recognised internationally.

Knoll and Eckert chose to supplement their formal presentation to Study Group 12 with an implementation and online demonstration, which according to the study group Chairman, Kwame Baah-Acheamfuor, was a first that gave delegates an unprecedented opportunity to see exactly how the contribution could be applied.

Participation of academics in the work of ITU-T provides invaluable networking opportunities and the chance to gain an understanding of the requirements of the industry.

More details can be found in the contributions (ITU members only) here and here. Alternatively here or for contribution details and publications.

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