332 search results - page 21 / 67 » Opportunistic Spectrum Access in Cognitive Radio Networks |
ICC
2007
IEEE
15 years 4 months ago
2007
IEEE
— Cognitive radio has been recently proposed as a promising technology to improve the spectrum utilization efficiency by intelligently sensing and accessing some vacant bands of...
100
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INFOCOM
2006
IEEE
15 years 3 months ago
2006
IEEE
— Opportunistic spectrum access and adaptive power management are effective techniques to improve throughput, delay performance, and energy efficiency for wireless networks. In ...
116
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MOBICOM
2009
ACM
15 years 4 months ago
2009
ACM
Establishing a control channel for medium access control is a challenging problem in multi-channel and dynamic spectrum access (DSA) networks. In the design of multi-channel MAC p...
JSAC
2011
14 years 4 months ago
2011
This work on cognitive radio access ventures beyond the more traditional “listen-before-talk” paradigm that underlies many cognitive radio access proposals. We exploit the bi-...
CISS
2008
IEEE
15 years 4 months ago
2008
IEEE
—One of the major concerns of cognitive radios when used for secondary spectrum access is the potential of interfering primary users, considering especially that cognitive radios...