43 search results - page 6 / 9 » Soft Sensing and Optimal Power Control for Cognitive Radio |
TCOM
2010
13 years 4 months ago
2010
Abstract— In this paper, we study the coexistence and optimization of a multicell cognitive radio network (CRN) which is overlaid with a multicell primary radio network (PRN). We...
CDC
2008
IEEE
14 years 23 days ago
2008
IEEE
—We study the problem of dynamic spectrum sensing and access in cognitive radio systems as a partially observed Markov decision process (POMDP). A group of cognitive users cooper...
INFOCOM
2010
IEEE
13 years 4 months ago
2010
IEEE
—Cognitive Radio Networks (CRNs) have recently emerged as a promising technology to improve spectrum utilization by allowing secondary users to dynamically access idle primary ch...
TWC
2008
13 years 6 months ago
2008
A resource allocation framework is presented for spectrum underlay in cognitive radio networks. We consider both interference constraints for primary users and quality of service (...
ICC
2008
IEEE
14 years 22 days ago
2008
IEEE
—Cognitive radios have the ability to sense their RF environment and adapt their transmission parameters to perform optimally in any situation. Part of this involves selecting th...