134 search results - page 15 / 27 » Two-stage spectrum sensing for cognitive radios |
VTC
2008
IEEE
14 years 1 months ago
2008
IEEE
— We consider a resource allocation problem for spectrum sharing in cognitive radio networks. Specifically, we investigate the joint subchannel, rate and power allocation for se...
MSWIM
2009
ACM
14 years 1 days ago
2009
ACM
Cognitive Radio (CR) technology constitutes a new paradigm to provide additional spectrum utilization opportunities in wireless ad hoc networks. Recent research in this field has ...
GLOBECOM
2008
IEEE
14 years 1 months ago
2008
IEEE
—Cooperative spectrum sensing has been shown to greatly improve the sensing performance in cognitive radio networks. However, if the cognitive users belong to different service p...
INFOCOM
2011
IEEE
12 years 10 months ago
2011
IEEE
—Cognitive radios (CRs) can mitigate the impending spectrum scarcity problem by utilizing their capability of accessing licensed spectrum bands opportunistically. While most exis...
IWCMC
2010
ACM
14 years 14 days ago
2010
ACM
The first step required by the process of cognition is the intelligent observation of the environment that surrounds the actors of such a process. We present the CalRAdio-Based a...