Cognitive Radio-An Integrated Agent Architecture for Software Defined Radio.pdf

Cognitive RadioAn Integrated Agent Architecture for Software Defined RadioDissertationDoctor of TechnologyJoseph Mitola IIIRoyal Institute of Technology (KTH)TeleinformaticsElectrum 204SE-164 40 KistaSwedenTRITA-IT AVH 00:01ISSN 1403-5286ISRN KTH/IT/AVH—00/01--SEThis dissertation is submitted in partial fulfillment of the degree of Doctor of May, 2000Copyright ? 2000 Joseph Mitola III,All Rights ReservediAbstractThis dissertation addresses the intersection of personal wireless technology putational intelligence. The primary research issue addressed is anization of radiodomain knowledge into data structures processable in real-time that integrate machine learningand natural language processing technology into software radio. The thesis defines and developsthe cognitive radio architecture. The features needed in the architecture are derived fromcognitive radio use cases. These include inferring munications context, shaping work demand, and realizing a protocol for real-time radio spectrum rental. Mathematicalfoundations for the knowledge-representation architecture are derived by applying point-settopology to the requirements of the use cases. This results in the set-theoretic ontology of radioknowledge defined in the Radio Knowledge Representation Language (RKRL). Themathematical analysis also demonstrates that isochronous radio software is not putable. Instead, it is constrained to a bounded-recursive subset of the total functions. Arapid-prototype cognitive radio, CR1, was developed to apply these mathematical foundations ina simulated environment. CR1 demonstrated the principles of cognitive radio and focused theresearch issues. This led to an important contribution of this dissertation, the cognitive radioarchitecture. This is an open architecture framework for integrating agent-based control, naturallanguage processing, and machine learning technology into software-defined radio Lynne’iiiAcknowledgementFirst, I