193 search results - page 2 / 39 » Addressing the Dynamic Range Problem in Cognitive Radios |
JSAC
2011
13 years 12 days 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...
WIOPT
2010
IEEE
13 years 3 months ago
2010
IEEE
Abstract—Development of dynamic spectrum access and allocation techniques recently have made feasible the vision of cognitive radio systems. However, a fundamental question arise...
JSAC
2011
13 years 14 days ago
2011
Abstract—In decentralized cognitive radio (CR) networks, enabling the radios to establish a control channel (i.e., “rendezvous” to establish a link) is a challenging problem....
GLOBECOM
2010
IEEE
13 years 3 months ago
2010
IEEE
We consider the channel selection problem in a cognitive radio network with heterogenous channel availabilities at different nodes. We formulate the maximum channel selection (MCS)...
MOBIHOC
2007
ACM
14 years 5 months ago
2007
ACM
A number of studies have shown the abundance of unused spectrum in the TV bands. This is in stark contrast to the overcrowding of wireless devices in the ISM bands. A recent trend...