Optimizing Multimedia Service Delivery
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In terms of network traffic, it is incontestable that multimedia delivery, and especially video, plays a major role today and will increasingly continue to do so. This project’s objective is to optimize video delivery with respect to quality (QoS, QoE) in two application scenarios: firstly (possibly interactive) video services, and secondly real-time conferencing in large meeting rooms (e.g. parliaments) including remote participation.

Specifically, the project will address four major video issues (i) analysis and optimization of audio/video streaming over 802.11n wireless networks, (ii) realizing (automatic/dynamic/ scaled) QoS-enabled service delivery (admission controlled) to the home (devices) and videoconference terminals, (iii) low-complexity audio/video quality assessment and real- time monitoring (including audio-video synchronisation (lipsync), and error-resilient encoding), (iv) optimization of video (trans)coding, and adaptative personalized, delivery to terminals.

SMIT is conducting the user research in this project. This user research consists of two main tasks.
A first task is related to the streaming of video content of the European Parliament and the Koksijde municipality. Here SMIT conducts quality tests in cooperation with IBCN to determine factors influencing the QoE and to measure the expected quality when users watch video content in their natural context (on their own devices).
A second task is related to the use of video in-the-home. Here we conduct a qualitative user study with a focus on the streaming and downloading of content, the need for personalisation and recommender systems and the use of interactive and on-demand services.