233 search results - page 2 / 47 » Stochastic Channel Selection in Cognitive Radio Networks |
JSAC
2011
12 years 11 months ago
2011
—Various spectrum management schemes have been proposed in recent years to improve the spectrum utilization in cognitive radio networks. However, few of them have considered the ...
INFOCOM
2010
IEEE
13 years 2 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...
ICC
2009
IEEE
13 years 11 months ago
2009
IEEE
— Spectrum handoff occurs when the primary users appear in the licensed band occupied by the secondary users. Spectrum handoff procedures aim to help the secondary users to vacat...
GLOBECOM
2010
IEEE
13 years 2 months ago
2010
IEEE
Abstract--Proper admission control in cognitive radio networks is critical in providing QoS guarantees to secondary unlicensed users. In this paper, we study the admission control ...
GLOBECOM
2010
IEEE
13 years 2 months ago
2010
IEEE
In a cognitive radio network, the full-spectrum is usually divided into multiple channels. However, due to the hardware and energy constraints, a cognitive user (also called second...