14424 search results - page 91 / 2885 » Modeling Radio Networks |
GLOBECOM
2007
IEEE
14 years 5 months ago
2007
IEEE
Abstract—We explore the performance tradeoff between opportunistic and regulated access inherent in the design of multiuser cognitive radio networks. We consider a cognitive radi...
VTC
2010
IEEE
13 years 9 months ago
2010
IEEE
—In this paper, we develop an opportunistic spectrum scheduling scheme for cognitive radio networks. In the proposed scheme, the channel status (i.e., whether being occupied by p...
INFOCOM
2007
IEEE
14 years 5 months ago
2007
IEEE
— Channel allocation was extensively studied in the framework of cellular networks. But the emergence of new system concepts, such as cognitive radio systems, has brought this to...
GLOBECOM
2010
IEEE
13 years 8 months ago
2010
IEEE
Abstract--Cognitive radio networks require fast and reliable spectrum sensing to achieve high network utilization by secondary users. Current optimization approaches to spectrum se...
MOBICOM
2009
ACM
14 years 5 months ago
2009
ACM
We address the connectivity of large-scale ad hoc cognitive radio networks, where secondary users exploit channels temporarily and locally unused by primary users and the existenc...