199 search results - page 19 / 40 » Multiple antenna spectrum sensing in cognitive radios |
108
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PERCOM
2009
ACM
15 years 6 months ago
2009
ACM
—The primary function of a cognitive radio is to detect idle frequencies or sub-bands, not used by the primary users (PUs), and allocate these frequencies to secondary users. The...
104
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ICC
2007
IEEE
15 years 6 months ago
2007
IEEE
With the advent of cognitive radio technology, new paradigms for spectrum access can achieve near-optimal spectrum utilisation by letting each user sense and utilise available s...
PIMRC
2010
IEEE
14 years 9 months ago
2010
IEEE
In this paper, we propose an interference aware throughput maximizing scheduler for cognitive radio networks (CRNs) as part of a MAC layer resource allocation framework. In the con...
ISSPIT
2010
14 years 6 months ago
2010
In a scenario where a cognitive radio unit wishes to transmit, it needs to know over which frequency bands it can operate. It can obtain this knowledge by estimating the power spe...
110
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GLOBECOM
2007
IEEE
15 years 6 months ago
2007
IEEE
We consider a cognitive radio system where the secondary transmitter varies its transmit power based on all the information available from the spectrum sensor. The operation of th...