169 search results - page 15 / 34 » Opportunistic spectrum access for mobile cognitive radios |
175
click to vote
WICOMM
2010
15 years 4 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...
146
click to vote
ICCCN
2007
IEEE
16 years 12 days ago
2007
IEEE
To improve spectrum efficiency, future wireless devices will use cognitive radios to dynamically access spectrum. While offering great flexibility and softwarereconfigurability...
156
click to vote
CDC
2008
IEEE
16 years 17 days ago
2008
IEEE
—We study the problem of dynamic spectrum sensing and access in cognitive radio systems as a partially observed Markov decision process (POMDP). A group of cognitive users cooper...
180
Voted
MSWIM
2009
ACM
15 years 10 months ago
2009
ACM
Cognitive Radio (CR) technology constitutes a new paradigm to provide additional spectrum utilization opportunities in wireless ad hoc networks. Recent research in this field has ...
149
Voted
INFOCOM
2008
IEEE
16 years 15 days ago
2008
IEEE
—We develop opportunistic scheduling policies for cognitive radio networks that maximize the throughput utility of the secondary (unlicensed) users subject to maximum collision c...