58 search results - page 1 / 12 » Joint power control and beamforming for cognitive radio netw... |
TWC
2008
13 years 6 months ago
2008
We consider a secondary usage of spectrum scenario where a secondary network coexists and/or shares the radio spectrum with a primary network to which the spectrum is licensed. The...
JSAC
2008
13 years 6 months ago
2008
A cognitive radio (CR) network is often described as a secondary network operating in a frequency band originally licensed/allocated to a primary network consisting of one or multi...
TWC
2008
13 years 6 months ago
2008
Abstract--We investigate the dynamic spectrum sharing problem among primary and secondary users in a cognitive radio network. We consider the scenario where primary users exhibit o...
JSAC
2011
13 years 1 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-...
INFOCOM
2010
IEEE
13 years 4 months ago
2010
IEEE
—We venture beyond the “listen-before-talk” strategy that is common in many traditional cognitive radio access schemes. We exploit the bi-directional nature of most primary c...