233 search results - page 16 / 47 » Stochastic Channel Selection in Cognitive Radio Networks |
PIMRC
2010
IEEE
13 years 5 months ago
2010
IEEE
We propose an opportunistic channel access scheme for cognitive radio-enabled secondary networks. In our work, we model the channel occupancy due to Primary User (PU) activity as a...
GLOBECOM
2010
IEEE
13 years 5 months ago
2010
IEEE
Abstract--The information propagation speed (IPS) of a network specifies how fast the information can be transmitted in a network. In this paper, we derive an IPS upper bound in co...
TWC
2008
13 years 7 months ago
2008
We consider a multi-channel opportunistic communication system where the states of these channels evolve as independent and statistically identical Markov chains (the Gilbert-Elli...
ASIAMS
2009
IEEE
14 years 2 months ago
2009
IEEE
Cognitive radio has the ability to sense the environment and adapt its behavior to optimize communication features, such as quality of service in the presence of interference and ...
INFOCOM
2012
IEEE
11 years 10 months ago
2012
IEEE
—The opening of under-utilized spectrum creates the opportunity of substantial performance improvement through cognitive radio techniques. However, the real network performance m...