Die Dozenten der Informatik-Institute der Technischen Universität
Braunschweig laden im Rahmen des Informatik-Kolloquiums zu folgendem
Vortrag ein.
Prof. Michael Zink, Department of Electrical and Computer Engineering,
University of Massachusetts Amherst:
SQUAD: A Spectrum-based Quality Adaptation for Dynamic Adaptive Streaming
over HTTP
Beginn: 09.06.2016, 14:00 Uhr
Ort: TU Braunschweig, Informatikzentrum, Mühlenpfordtstraße 23,
1. OG, Hörsaal M 161
Webseite: http://www.ibr.cs.tu-bs.de/cal/kolloq/2016-06-09-zink.html
Kontakt: Prof. Dr. Lars Wolf
The application-layer based control loops of dynamic adaptive streaming
over HTTP (DASH) make video bitrate selection a complex problem. In this
talk, I will review and present new insights into the challenges of DASH
rate adaptation. I will identify several critical issues that contribute
to the degradation of DASH performance with respect to the rate control
loops of DASH and TCP. In addition, I will introduce a novel DASH quality
adaptation algorithm SQUAD, which is specifically designed to ensure
high quality of experience (QoE). This is followed by an overview on the
implementation of the SQUAD algorithm and its comparison to a number
of state-of-the-art quality adaptation algorithms. Through extensive
experiments on both testbed and cross-Atlantic Internet scenarios,
we show that by sacrificing little to none in average quality bitrate,
SQUAD provides significantly better QoE in terms of number and magnitude
of quality switches.
