Toward A Cognitive Radio
Architecture: Integrating Knowledge Representation With Software Defined
Radio Technologies
April 2007
Allen Ginsberg, The MITRE Corporation
Jeffrey D. Poston, The MITRE Corporation
William D. Horne, The MITRE Corporation
ABSTRACT
The ultimate vision of cognitive radio technology encompasses many
capabilities including autonomous execution of tasks that today require
manual intervention. A conventional radio when operating in a particular
communications mode always follows the same procedure and either succeeds
or fails at a given task. A cognitive radio, by contrast, can have a
knowledge-driven differentialresponse capability; that is, it can use
knowledge of radio technology and policy, representations of the goals,
and other contextual parameters to reason about a failed attempt to
satisfy a goal and to identify alternative actions that would achieve
the goal. We have built a prototype simulation framework for a cognitive
radio that exhibits this capability in various scenarios. Based upon
this experience, this paper proposes a general architecture that merges knowledge representation technologies (both ontologies and rules)
with the processing structures of existing software defined radio technology
to enable this capability as well as form a foundation for other cognitive
abilities.
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