40 search results - page 8 / 8 » Power Allocation for Cognitive Radios Based on Primary User ... |
INFOCOM
2010
IEEE
13 years 3 months ago
2010
IEEE
Abstract—We consider a cognitive radio network where multiple secondary users (SUs) contend for spectrum usage, using random access, over available primary user (PU) channels. Ou...
GLOBECOM
2009
IEEE
13 years 8 months ago
2009
IEEE
In this paper, cognitive transmission under quality of service (QoS) constraints is studied. In the cognitive radio channel model, it is assumed that the secondary transmitter sen...
JCM
2006
13 years 4 months ago
2006
- Current wireless systems are called vendor-central systems because, users should subscribe to a service provider (vendor) and receive the service through the spectrum assigned to...
INFOCOM
2010
IEEE
13 years 3 months ago
2010
IEEE
Abstract—WiMAX with femto cells is a cost-effective nextgeneration broadband wireless communication system. Cognitive Radio (CR) has recently emerged as a promising technology to...
GLOBECOM
2010
IEEE
13 years 2 months ago
2010
IEEE
The major requirement for Cognitive Radio (CR) based opportunistic spectrum re-usage is reliable protection of the primary communication. This calls for a reliable detection of the...