175 search results - page 16 / 35 » Adaptive spectrum sensing for agile cognitive radios |
TON
2010
13 years 2 months ago
2010
The cognitive radio (CR) paradigm calls for open spectrum access according to a predetermined etiquette. Under this paradigm, CR nodes access the spectrum opportunistically by cont...
ICC
2008
IEEE
14 years 2 months ago
2008
IEEE
—To improve the performance of spectrum sensing, cooperation among Cognitive Radios (CRs) has been proposed recently as an effective solution. Most existing works require either ...
GLOBECOM
2008
IEEE
14 years 2 months ago
2008
IEEE
DSD
2010
IEEE
13 years 5 months ago
2010
IEEE
Orthogonal Frequency Division Multiplexing (OFDM) can provide a flexible usage of the spectrum by controlling individual subcarriers. Sets of subcarriers can be zero-modulated to a...
GLOBECOM
2007
IEEE
14 years 2 months ago
2007
IEEE
— Motorola Labs implemented an experimental cognitive radio system for use at the Dynamic Spectrum Access Networks (DySPAN) Symposium 2007. To exercise a practical communication ...