58 search results - page 1 / 12 » Joint power control and beamforming for cognitive radio netw... |
TWC
2008
13 years 4 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 4 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 4 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
12 years 11 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 3 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...