69 search results - page 4 / 14 » Signal Spectrum Sensing Robust to Noise Uncertainty |
CISS
2010
IEEE
12 years 11 months ago
2010
IEEE
—This paper presents the system level performance evaluation for energy-detection based cooperative spectrum sensing in cognitive radio networks. Three performance criteria are q...
ICUMT
2009
13 years 5 months ago
2009
In cognitive radio networks, secondary user (SU) does not have rights to transmit when the primary user (PU) band is occupied, that's why a sensing technique must be done. Rec...
ISCAS
2006
IEEE
14 years 1 months ago
2006
IEEE
—The application of adaptive techniques for obtaining bispectrum estimates in additive Gaussian noise and random shifts of received signals is considered. An approach using joint...
TWC
2008
13 years 6 months ago
2008
Ultra-wideband (UWB) communication is envisaged to be deployed in indoor environments, where the noise distribution is decidedly non-Gaussian. A critical challenge for impulse radi...
ICASSP
2011
IEEE
12 years 11 months ago
2011
IEEE
This paper introduces a new algorithm for reconstructing signals with sparse spectrums from noisy compressive measurements. The proposed model-based algorithm takes the signal str...