INFOCOM
2009
IEEE
14 years 7 months ago
2009
IEEE
—Cognitive radio has been proposed in recent years to promote the spectrum utilization by exploiting the existence of spectrum holes. The heterogeneity of both spectrum availabil...
MOBIHOC
2007
ACM
15 years 20 hour 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...