72 search results - page 5 / 15 » A Cooperative Spectrum Sensing Consensus Scheme in Cognitive... |
GLOBECOM
2007
IEEE
14 years 1 months ago
2007
IEEE
—One of the main requirements of cognitive radio systems is the ability to reliably detect the presence of licensed primary transmissions. Previous works on the problem of detect...
ICUMT
2009
13 years 5 months ago
2009
Abstract-- We consider the problem of Spectrum Sensing in Cognitive Radio Networks. In our previous work we have developed DualCUSUM, a distributed algorithm for change detection a...
CISS
2010
IEEE
12 years 11 months ago
2010
IEEE
—This paper presents the system level performance evaluation for energy-detection based cooperative spectrum sensing in cognitive radio networks. Three performance criteria are q...
CDC
2008
IEEE
14 years 1 months 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...
ICC
2009
IEEE
14 years 2 months ago
2009
IEEE
—In this paper, we present a composite hypothesis testing approach for cooperative spectrum sensing. We derive the optimal likelihood ratio test (LRT) statistic based on the Neym...