190 search results - page 36 / 38 » Cooperative Spectrum Sensing and Detection for Cognitive Rad... |
CCR
2011
13 years 2 months ago
2011
Proliferation and innovation of wireless technologies require significant amounts of radio spectrum. Recent policy reforms by the FCC are paving the way by freeing up spectrum fo...
ICC
2011
IEEE
12 years 7 months ago
2011
IEEE
—Spectrum awareness is one of the most challenging requirements in cognitive radio (CR). To adequately adapt to the changing radio environment, it is necessary for the CR to be a...
ICASSP
2011
IEEE
12 years 10 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...
GLOBECOM
2008
IEEE
14 years 1 months ago
2008
IEEE
— Accurate detection of spectrum opportunities within the frequency band of an orthogonal frequency division multiple access (OFDMA) system is a critical requirement for the real...
CISS
2007
IEEE
14 years 1 months ago
2007
IEEE
— We propose an expectation-maximization (EM) technique for locating multiple transmitters based on power levels observed by a set of arbitrarily-placed receivers. Multiple trans...