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Adaptive wireless access system design for cognitive radio networks

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1 Author(s)
Vijay K. Bhargava ; Department of Electrical and Computer Engineering, University of British Columbia, 2356 Main Mall, Vancouver BC V6T 1Z4 Canada. Email: vijayb@ece.ubc.ca

In this talk, an overview of enormous potential of improving spectral utilization by using cognitive radio is presented. The current main focus on cognitive radio design is to research and develop adaptive radio access technologies, that have lead to many challenges in physical layer, medium access control (MAC) layer and cross layer design. Moreover in the talk, research scopes and challenges that have come up in several layers are presented. Specifically, the following research issues are discussed: spectrum sensing, efficient spectrum allocation and utilization algorithms, advanced transceiver and radio interface designs for the cognitive physical layer, MAC optimization, admission control design, and enabling security mechanism.

Note: The document that should appear here is not currently complete. The article is missing page 6 due to a file format incompatibility. We regret any inconvenience as we work to obtain a replacement.  

Published in:

2007 IEEE Radio and Wireless Symposium

Date of Conference:

9-11 Jan. 2007