122 search results - page 20 / 25 » Cost constrained spectrum sensing in cognitive radio network... |
WICOMM
2010
13 years 5 months ago
2010
Cognitive radio (CR) has been considered a key technology to enhance overall spectrum utilization by opportunistic transmissions in CR transmitter-receiver link(s). However, CRs m...
ICASSP
2011
IEEE
12 years 11 months ago
2011
IEEE
In this paper, we study the eigenvalue-based spectrum sensing techniques for multiple-antenna cognitive radio networks. First, we study the extreme eigenvalue distributions of a c...
GLOBECOM
2009
IEEE
14 years 2 months ago
2009
IEEE
Abstract— Two driving goals for cognitive radio (CR) technique are maximizing spectrum utilization and avoiding interference to primary users. In this paper, we deal with the CR ...
TMC
2008
13 years 7 months ago
2008
Wireless networks and devices have rapidly been gaining popularity over their wired counterparts. This popularity, in turn, has been generating an explosive and ever-increasing dem...
ICC
2007
IEEE
14 years 1 months ago
2007
IEEE
Abstract— Cooperation is increasingly regarded as a key technology for tackling the challenges of a practical implementation of cognitive radio. In this paper, we first give a b...