593 search results - page 36 / 119 » Cooperation and Cognitive Radio |
101
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ICC
2009
IEEE
15 years 6 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...
128
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GLOBECOM
2007
IEEE
15 years 6 months ago
2007
IEEE
— In this paper, we investigate the channel selection strategy for secondary users in cognitive radio networks. We claim that in order to avoid the costly channel switchings, a s...
ISCAS
2007
IEEE
15 years 6 months ago
2007
IEEE
—A parallel, multi-resolution spectrum sensing technique that is amenable to multiple-antenna cognitive radios is introduced. We show that for energy-detector-type spectrum senso...
SECON
2007
IEEE
15 years 6 months ago
2007
IEEE
— Cognitive Radio systems face an important challenge – fast and reliable channel searching to enable secondary users to optimize available spectral resources. We revisit conve...
WIOPT
2010
IEEE
14 years 10 months ago
2010
IEEE
In this paper, we propose a comprehensive probabilistic framework which can be used to model and analyze cognitive radio (CR) network using carrier sensing (CS) based multiple acc...