134 search results - page 24 / 27 » Two-stage spectrum sensing for cognitive radios |
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...
INFOCOM
2009
IEEE
14 years 2 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...
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...
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 ...
INFOCOM
2012
IEEE
11 years 9 months ago
2012
IEEE
—Collaborative spectrum sensing has been regarded as a promising approach to enable secondary users to detect primary users by exploiting spatial diversity. In this paper, we con...