332 search results - page 55 / 67 » Opportunistic Spectrum Access in Cognitive Radio Networks |
112
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INFOCOM
2012
IEEE
13 years 2 days ago
2012
IEEE
Cognitive radio gives users the ability to switch channels and make use of dynamic spectral opportunities. However, switching channels takes time, and may disrupt the quality of a...
111
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GLOBECOM
2008
IEEE
15 years 4 months ago
2008
IEEE
—Cooperative spectrum sensing has been shown to greatly improve the sensing performance in cognitive radio networks. However, if the cognitive users belong to different service p...
ICASSP
2011
IEEE
14 years 1 months ago
2011
IEEE
One of the most critical issues in femtocell network deployment is interference management, especially for femtocells sharing the spectrum occupied by conventional cellular networ...
WCNC
2010
IEEE
14 years 8 months ago
2010
IEEE
—In this paper, we present an interference model for cognitive radio (CR) networks employing power control or contention control scheme. The probability density functions (PDFs) ...
ICC
2009
IEEE
14 years 7 months ago
2009
IEEE
In this paper, we consider a secondary link sharing the spectrum with a primary link in a fading cognitive radio (CR) network. Instead of applying the conventional interference pow...