98 search results - page 11 / 20 » On performance evaluation of cooperative spectrum sensing in... |
VTC
2008
IEEE
14 years 1 months ago
2008
IEEE
This paper considers a scenario in which a secondary user makes opportunistic use of a channel allocated to some primary network. The primary network operates in a time-slotted ma...
INFOCOM
2009
IEEE
14 years 2 months ago
2009
IEEE
—Dynamic spectrum access has been proposed as a means to share scarce radio resources, and requires devices to follow protocols that use resources in a proper, disciplined manner...
JSAC
2011
13 years 2 months ago
2011
Abstract—In cognitive radio networks (CRNs), detecting smallscale primary devices, such as wireless microphones, is a challenging, but very important, problem that has not yet be...
ICASSP
2011
IEEE
12 years 11 months ago
2011
IEEE
In cognitive radio (CR) networks, multi-CR cooperation typically takes place during spectrum sensing, to cope with wireless fading effects and the hidden terminal problem. The use...
GLOBECOM
2007
IEEE
14 years 1 months ago
2007
IEEE
Abstract—We explore the performance tradeoff between opportunistic and regulated access inherent in the design of multiuser cognitive radio networks. We consider a cognitive radi...