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CCECE
2009
IEEE
13 years 11 months ago
On the second-order cyclostationarity for joint signal detection and classification in cognitive radio systems
—Spectrum awareness is a crucial first step of a cognitive radio (CR). This provides information necessary for the CR to adapt to the radio frequency environment, and involves re...
Qiyun Zhang, Octavia A. Dobre, Sreeraman Rajan, Ro...
ICC
2011
IEEE
189views Communications» more  ICC 2011»
12 years 4 months ago
Joint Cyclostationarity-Based Detection and Classification of Mobile WiMAX and LTE OFDM Signals
—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...
Ala'a Al-Habashna, Octavia A. Dobre, Ramachandran ...
VTC
2010
IEEE
134views Communications» more  VTC 2010»
13 years 2 months ago
Sensitivity of Spectrum Sensing Techniques to RF Impairments
Cognitive radios are devices capable of sensing a large range of frequencies in order to detect the presence of primary networks and reuse their bands when they are not occupied. D...
Jonathan Verlant-Chenet, Julien Renard, Jean-Miche...
ICASSP
2011
IEEE
12 years 8 months ago
Robust frequency synchronization for an OFDMA uplink system disturbed by a Cognitive Radio system interference
In Cognitive Radio (CR) systems, spectrum sensing plays a key role to determine the free frequency bands. However, when the primaryuser (PU) signal spectrum exhibits localized fad...
Hector Poveda, Guillaume Ferre, Eric Grivel
ICASSP
2008
IEEE
13 years 11 months ago
Mixed-signal parallel compressed sensing and reception for cognitive radio
A parallel structure to do spectrum sensing in Cognitive Radio (CR) at sub-Nyquist rate is proposed. The structure is based on Compressed Sensing (CS) that exploits the sparsity o...
Zhuizhuan Yu, Sebastian Hoyos, Brian M. Sadler