148 search results - page 29 / 30 » Spectrum Sensing in Wideband OFDM Cognitive Radios |
JSAC
2008
13 years 6 months ago
2008
A cognitive radio can sense its environment and adapt some of its features, such as carrier frequency, transmission bandwidth, transmission power, and modulation, thus allowing dyn...
ICASSP
2011
IEEE
12 years 9 months ago
2011
IEEE
A nonparametric version of the basis pursuit method is developed for field estimation. The underlying model entails known bases, weighted by generic functions to be estimated fro...
CORR
2007
Springer
13 years 6 months ago
2007
Springer
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...
ICC
2008
IEEE
14 years 13 days ago
2008
IEEE
—We consider opportunistic communications over multiple channels where the state (“good” or “bad”) of each channel evolves as independent and identically distributed Mark...
ICASSP
2008
IEEE
14 years 14 days ago
2008
IEEE
—We aim to characterize the maximum link throughput of a multi-channel opportunistic communication system. The states of these channels evolve as independent and identically dist...