26 search results - page 2 / 6 » Two Phase Spectrum Sharing for Frequency-Agile Radio Network... |
TSP
2012
12 years 27 days ago
2012
Abstract—We consider a robust downlink beamforming optimization problem for secondary multicast transmission in a multiple-input multiple-output (MIMO) spectrum sharing cognitive...
TSP
2011
13 years 8 days ago
2011
—In this paper, we investigate a selective relay spectrum sensing and best relay data transmission (SRSS-BRDT) scheme for multiple-relay cognitive radio networks. Specifically, ...
CCR
2011
13 years 11 days ago
2011
Proliferation and innovation of wireless technologies require significant amounts of radio spectrum. Recent policy reforms by the FCC are paving the way by freeing up spectrum fo...
INFOCOM
2011
IEEE
12 years 8 months ago
2011
IEEE
Abstract—Market-based mechanisms offer promising approaches for spectrum access in cognitive radio networks. In this paper, we focus on two market models, one with a monopoly pri...
GLOBECOM
2007
IEEE
13 years 11 months ago
2007
IEEE
Abstract—We explore the performance tradeoff between opportunistic and regulated access inherent in the design of multiuser cognitive radio networks. We consider a cognitive radi...