28 search results - page 6 / 6 » Spectrum White Space Trade in Cognitive Radio Networks |
CORR
2007
Springer
13 years 6 months ago
2007
Springer
—Opportunistic secondary spectrum usage has the potential to dramatically increase spectral efficiency and rates of a network of secondary cognitive users. In this work we consi...
INFOCOM
2009
IEEE
14 years 1 months ago
2009
IEEE
—In cognitive wireless networks where secondary users (SUs) opportunistically access spectral white spaces of primary users (PUs), there exists an inherent tradeoff between sensi...
JSAC
2011
13 years 1 months ago
2011
In this paper, we characterize the joint network capacity region for a licensed broadcast (primary) and ad hoc cognitive (secondary) network in a heterogeneous environment, includ...