ece4305_L24

ece4305_L24 - Cognitive Radio ECE4305: Software-Defined...

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Unformatted text preview: Cognitive Radio ECE4305: Software-Defined Radio Systems and Analysis Professor Alexander M. Wyglinski Department of Electrical and Computer Engineering Worcester Polytechnic Institute Lecture 24 Professor Alexander M. Wyglinski ECE4305: Software-Defined Radio Systems and Analysis Cognitive Radio Introduction CR Implementation Wireless System Evolution Figure: Depiction of Cognitive Radio History. P. Pawelczak, R. V. Prasad. Standardizing Cognitive Radio: IEEE P1900 and IEEE SCC41. in Cognitive Radio Communications and Networks: Principles and Practice (A. M. Wyglinski, M. Nekovee, Y. T. Hou (eds.)), Academic Press, 2009. Professor Alexander M. Wyglinski ECE4305: Software-Defined Radio Systems and Analysis Cognitive Radio Introduction CR Implementation Cognitive Radio Definition I An intelligent wireless communications system I Based on SDR technology I Reconfigurable I Agile Functionality I Aware of its environment I RF spectrum occupancy I Network traffic I Transmission quality I Learns from its environment and adapts to new scenarios based on previous experiences Professor Alexander M. Wyglinski ECE4305: Software-Defined Radio Systems and Analysis Cognitive Radio Introduction CR Implementation Mitolas Definition I wireless personal digital assistants and the related networks were sufficiently computationally intelligent about radio resources, ... to detect user needs as a function of use context, and to provide radio resources and wireless services most appropriate to those needs J. Mitola III. Cognitive Radio: An Integrated Agent Architecture for Software Defined Radio . PhD thesis, Royal Institute of Technology (KTH), Stockholm, Sweden, May 2000. Professor Alexander M. Wyglinski ECE4305: Software-Defined Radio Systems and Analysis Cognitive Radio Introduction CR Implementation Haykins Definition I Inclusive of SDR, [idea] to promote efficient use of spectrum by exploiting the existence of spectrum holes I intelligent wireless communication system (...) that adapt(s) to statistical variations in the input stimuli ... which are highly reliable communication (...); efficient utilization of radio spectrum S. Haykin. Cognitive radio: Brain-empowered wireless communications. IEEE Journal on Selected Areas in Communications , vol. 23, pp. 201220, Feb. 2005. Professor Alexander M. Wyglinski ECE4305: Software-Defined Radio Systems and Analysis Cognitive Radio Introduction CR Implementation Standardization Efforts: IEEE SCC 41 Figure: Schematic of the IEEE SCC41 Cognitive Radio Definition. P. Pawelczak, R. V. Prasad. Standardizing Cognitive Radio: IEEE P1900 and IEEE SCC41. in Cognitive Radio Communications and Networks: Principles and Practice (A. M. Wyglinski, M. Nekovee, Y. T. Hou (eds.)), Academic Press, 2009....
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ece4305_L24 - Cognitive Radio ECE4305: Software-Defined...

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