174 search results - page 25 / 35 » Optimization of Periodic Channel Sensing by Secondary Users ... |
JSAC
2008
13 years 7 months ago
2008
Abstract--The concept of cognitive radio (or secondary spectrum access) is currently under investigation as a promising paradigm to achieve efficient use of the frequency resource ...
GLOBECOM
2010
IEEE
13 years 5 months ago
2010
IEEE
Abstract-- We study joint rate control and resource allocation with QoS provisioning that maximizes the total utility of secondary users in cognitive radio networks. We formulate a...
TWC
2010
13 years 2 months ago
2010
In this paper, we consider the problem of spectrum sensing by using multiple antenna in cognitive radios when the noise and the primary user signal are assumed as independent compl...
ICASSP
2009
IEEE
14 years 2 months ago
2009
IEEE
A Bayesian formulation of quickest change detection in multiple onoff processes is obtained within a decision-theoretic framework. For geometrically distributed busy and idle time...
WCNC
2010
IEEE
13 years 6 months ago
2010
IEEE
— Previous works studied the effect of many system parameters on spectrum sharing opportunities where secondary users access the spectrum of primary users. However, a parameter t...