2007 search results - page 131 / 402 » SPECTRUM |
131
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ICASSP
2011
IEEE
14 years 7 months ago
2011
IEEE
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...
131
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ISCA
2011
IEEE
14 years 7 months ago
2011
IEEE
As the number of cores on a single-chip grows, scalable barrier synchronization becomes increasingly difficult to implement. In software implementations, such as the tournament ba...
130
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WIOPT
2011
IEEE
14 years 7 months ago
2011
IEEE
—Cellular operators have been offloading data traffic from their licensed bands to unlicensed bands through a large number of WiFi hotspots over the past years. Although this a...
211
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DSD
2011
IEEE
14 years 3 months ago
2011
IEEE
—With the opening up of white spaces, efficient use of the fragmented spectrum - TV white space in particular - has become an extremely important focus of research. Apart from ef...
158
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ICDCS
2011
IEEE
14 years 3 months ago
2011
IEEE
Abstract—Secure neighbor discovery is fundamental to mobile ad hoc networks (MANETs) deployed in hostile environments and refers to the process in which two neighboring nodes exc...