36 search results - page 6 / 8 » Spectrum Sensing in Cognitive Radios Based on Multiple Cycli... |
VTC
2010
IEEE
13 years 5 months ago
2010
IEEE
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...
INFOCOM
2012
IEEE
11 years 9 months ago
2012
IEEE
—Cognitive Radio Networks allow unlicensed users to opportunistically access the licensed spectrum without causing disruptive interference to the primary users (PUs). One of the ...
GLOBECOM
2008
IEEE
14 years 1 months ago
2008
IEEE
—Research in cognitive radios has renewed interest in tools, such as spectrum estimation and modulation identification, to characterize the radio frequency (RF) environment. The...
ICASSP
2010
IEEE
13 years 7 months ago
2010
IEEE
One of the key problems in cognitive radio (CR) is the detection of primary activity in order to determine which parts of the spectrum are available for opportunistic access. This...
ICC
2011
IEEE
12 years 7 months ago
2011
IEEE
—In cognitive radio (CR) networks, licensed spectrum that can be shared by secondary users (SUs) is always restricted by the needs of primary users (PUs). Although channel aggreg...