593 search results - page 77 / 119 » Cooperation and Cognitive Radio |
115
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INFOCOM
2012
IEEE
13 years 5 days ago
2012
IEEE
Cognitive radio (CR) techniques improve the spectrum utilization by exploiting temporarily-free frequency bands (i.e., in the time domain). The spectrum utilization can be boosted...
CORR
2010
Springer
14 years 9 months ago
2010
Springer
The availability of positional information is of great importance in many commercial, governmental, and military applications. Localization is commonly accomplished through the use...
103
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INFOCOM
2012
IEEE
13 years 6 days ago
2012
IEEE
—Localization techniques that allow inferring the location of wireless devices directly from received signals have exposed mobile users to new threats. Adversaries can easily col...
QSHINE
2005
IEEE
15 years 3 months ago
2005
IEEE
We propose a cooperative-diversity technique for ad hoc networks based on the decode-and-forward relaying strategy. We develop a MAC protocol based on slotted ALOHA that allows ne...
PIMRC
2008
IEEE
15 years 4 months ago
2008
IEEE
— One of the main task to be done by a cognitive receiver is to sense its spectral environment in order to distinguish surrounding systems from each others. Actually most systems...