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07 - Enabling quality of service for mixed reality application features

Vesna Popic (Fachhochschule Düsseldorf-University of Applied Science)

Mixed reality applications usually consist of several kinds of media objects, e.g. live video streams of real objects with 3D animations, download, chat and haptic interaction control. In case of networked mixed reality applications the media objects produce data streams which have varying demands on the network concerning their transmission. While distributed interaction for instance first of all implies narrow constraints on the latency, streaming audio and video will mainly ask for a sufficient data rate.
From this perspective individual resource reservations appear to be reasonable, if the underlying network supports a quality of service (QoS) scheme. Unfortunately, this point is often not considered during the conception and development of mixed reality applications which results in a lack of sufficient QoS support.
The research project DISCOVER aims to supply QoS support for mixed reality applications using simplified access to QoS, both in the developing process and at run time, and dynamic QoS adaption during run time. In order to abstract from a concrete networked mixed reality application the DISCOVER Reference Suite was developed and is the main focus of the poster. The suite reflects typical components of mixed reality applications, e.g. video streaming or haptic interaction, and makes QoS available for them by supplying support for Differentiated Services and Integrated Services schemes and by allowing individual QoS reservations for each stream.

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