190 search results - page 12 / 38 » Cooperative Spectrum Sensing and Detection for Cognitive Rad... |
CORR
2008
Springer
13 years 7 months ago
2008
Springer
Abstract--We consider power control in cognitive radio networks where secondary users identify and exploit instantaneous and local spectrum opportunities without causing unacceptab...
CDC
2008
IEEE
14 years 1 months 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...
ISSPIT
2010
13 years 2 months ago
2010
In a scenario where a cognitive radio unit wishes to transmit, it needs to know over which frequency bands it can operate. It can obtain this knowledge by estimating the power spe...
GLOBECOM
2007
IEEE
14 years 1 months ago
2007
IEEE
— Motorola Labs implemented an experimental cognitive radio system for use at the Dynamic Spectrum Access Networks (DySPAN) Symposium 2007. To exercise a practical communication ...
GLOBECOM
2010
IEEE
13 years 4 months ago
2010
IEEE
Cognitive radio (CR) emerges as a key technology to enhance spectrum efficiency and thus creates opportunistic transmissions over links. Supporting the routing function on top of n...