383 search results - page 19 / 77 » Dynamics of Phonological Cognition |
GLOBECOM
2008
IEEE
14 years 3 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...
ICONIP
2008
13 years 10 months ago
2008
Abstract. A method is proposed to determine the similarity of a collection of time series. As a first step, one extracts events from the time series, in other words, one converts e...
WICON
2008
13 years 10 months ago
2008
Cognitive radio networks that allow dynamic spectrum access are considered spectrally more efficient than networks using fixed spectral allocation. These networks are characterize...
ICC
2009
IEEE
14 years 3 months ago
2009
IEEE
— Spectrum sensing, which monitors the spectrum activity, is studied for cognitive radio systems using multiple frequency bands with non-negligible band switching time (blind per...
JCST
2008
13 years 8 months ago
2008
The allocation of bandwidth to unlicensed users, without significantly increasing the interference on the existing licensed users, is a challenge for Ultra Wideband (UWB) networks....