38 search results - page 7 / 8 » Resource Allocation for Downlink Spectrum Sharing in Cogniti... |
ICASSP
2011
IEEE
12 years 9 months ago
2011
IEEE
Consider a robust downlink beamforming optimization problem for secondary multicast transmission in a multiple-input multiple-output (MIMO) spectrum sharing cognitive radio (CR) n...
VTC
2007
IEEE
13 years 11 months ago
2007
IEEE
— With the advent of cognitive radio technology, new paradigms for spectrum access can achieve near-optimal spectrum utilization by letting users sense and utilize available spec...
GLOBECOM
2008
IEEE
13 years 11 months ago
2008
IEEE
Abstract— The coexistence and resource sharing between a primary network utilizing cognitive relays and a secondary network are investigated. Two multiple access protocols are pr...
ICC
2009
IEEE
13 years 3 months ago
2009
IEEE
In this paper, we consider a secondary link sharing the spectrum with a primary link in a fading cognitive radio (CR) network. Instead of applying the conventional interference pow...
INFOCOM
2009
IEEE
13 years 12 months ago
2009
IEEE
—Dynamic spectrum access has been proposed as a means to share scarce radio resources, and requires devices to follow protocols that use resources in a proper, disciplined manner...