199 search results - page 32 / 40 » Multiple antenna spectrum sensing in cognitive radios |
ICC
2009
IEEE
15 years 6 months ago
2009
IEEE
—Several measurement studies have found a large amount of underutilized radio spectrum. More flexible regulation employing dynamic spectrum access (DSA) has been proposed as sol...
101
click to vote
INFOCOM
2010
IEEE
14 years 10 months ago
2010
IEEE
Abstract—The problem of cooperative allocation among multiple secondary users to maximize cognitive system throughput is considered. The channel availability statistics are initi...
115
click to vote
WICOMM
2010
14 years 10 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...
112
click to vote
GLOBECOM
2009
IEEE
15 years 6 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 ...
128
click to vote
INFOCOM
2012
IEEE
13 years 2 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...