122 search results - page 3 / 25 » Cost constrained spectrum sensing in cognitive radio network... |
TWC
2011
12 years 11 months ago
2011
In cognitive radio networks, each cognitive transmission process typically requires two phases: the spectrum sensing phase and data transmission phase. In this paper, we investiga...
INFOCOM
2012
IEEE
11 years 6 months ago
2012
IEEE
—Cognitive Radio Networks allow unlicensed users to opportunistically access the licensed spectrum without causing disruptive interference to the primary users (PUs). One of the ...
MOBICOM
2009
ACM
13 years 11 months ago
2009
ACM
In cognitive radio networks (CRNs), spectrum sensing is key to opportunistic spectrum access while preventing any unacceptable interference to primary users’ communications. Alt...
TSP
2010
12 years 11 months ago
2010
Effective spectrum sensing is a critical prerequisite for multi-channel cognitive radio (CR) networks, where multiple spectrum bands are sensed to identify transmission opportuniti...
CISS
2008
IEEE
13 years 10 months ago
2008
IEEE
Abstract— Quickest detection is applied to frequency spectrum sensing in cognitive radio systems. Distribution change in frequency domain is detected for vacating secondary radio...