Semantic -based QoS provisioning for wireline and wireless networks

Authors:
Nikolaos Doulamis
Affiliations:
National Technical University of Athens, Computer Vision & Photogrammetry Lab., Athens, Greece
Venue:
ACA'12 Proceedings of the 11th international conference on Applications of Electrical and Computer Engineering
Year:
2012

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Abstract

This paper aims at significantly extending existing QoS architectures for wireline and wireless networks by incorporating content semantics in the architectural model. In existing QoS architectures (e.g. DiffServ), the transmitted entities (content) have their own priorities over other entities, but no effort is made to analyze the content in its semantic components (content objects), even though they have different characteristics and requirements, and should therefore receive different QoS treatment. In our approach, we take into consideration the properties of the transmitted content, decompose it into different content objects and provide QoS differentiation based on content semantics, while taking into account users' preferences and resource capabilities. It is clear that a semantic-based QoS architecture significantly outperforms, in user-perceived quality, static (monolithic) architectures, where all the transmitted content of a given application is handled in a unified way. In particular, we develop a semantic-aware multimedia delivery chain, which includes (a) voice and video multimedia sources, (b) context descriptors generation, (c) context-to-network-semantic translators and (d) semantic capable network devices.