199 search results - page 12 / 40 » Multiple antenna spectrum sensing in cognitive radios |
TSP
2010
14 years 6 months ago
2010
Abstract--A cooperative approach to the sensing task of wireless cognitive radio (CR) networks is introduced based on a basis expansion model of the power spectral density (PSD) ma...
141
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CISS
2010
IEEE
14 years 3 months ago
2010
IEEE
—This paper presents the system level performance evaluation for energy-detection based cooperative spectrum sensing in cognitive radio networks. Three performance criteria are q...
ICASSP
2010
IEEE
15 years 23 hour ago
2010
IEEE
We consider a two-stage sensing scheme for cognitive radios where coarse sensing based on energy detection is performed in the first stage and, if required, fine sensing based o...
102
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GLOBECOM
2010
IEEE
14 years 9 months ago
2010
IEEE
This paper develops a cooperative scheme among cognitive radios (CRs) to increase the spectrum sensing performance. CRs adaptively transmit local binary decisions to a fusion cente...
103
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CISS
2010
IEEE
14 years 3 months ago
2010
IEEE
—This paper addresses optimal spectrum sensing in cognitive radio networks considering its system level cost that accounts for the local processing cost of sensing (sample collec...