Policy Based Control of Cognitive Radios: Methods and Tools, Mieczyslaw M. Kokar, Northeastern University

This tutorial will cover both theoretical and practical aspects of policy based control of cognitive radios. First, a motivational example will be given to demonstrate the importance of policies and their role in cognitive radios. This will be followed by a presentation of some methodological techniques and some technologies that are needed for establishing an ontological approach to policy based control. The notion of ontology will be introduced in theoretical, computational and practical terms. Examples of specific ontologies will be discussed using both a graphical representation and an evolving standard language used for communicating ontologies and annotations as well as for the interpretation of semantic annotations (OWL – Web Ontology Language). An overview of OWL constructs will be provided using Protégé, the most popular and freely available tool for editing ontologies and some graphical plugins. Other publicly available tools will also be demonstrated in the context of a methodology for ontology engineering. Policy based control will be discussed using illustrative examples.