2142 search results - page 171 / 429 » Improved Conditional E-Payments |
162
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FGR
2006
IEEE
15 years 12 months ago
2006
IEEE
One of the major problem in face authentication systems is to deal with variations in illumination. In a realistic scenario, it is very likely that the lighting conditions of the ...
112
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GLOBECOM
2006
IEEE
15 years 12 months ago
2006
IEEE
Abstract— A precoding technique applied to symbols transmitted in an ultra-wideband (UWB) system was proposed in [1], which can concentrate the signal power at the receiver to fa...
122
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GLOBECOM
2006
IEEE
15 years 12 months ago
2006
IEEE
— Clear Channel Assessment (CCA) is an essential ingredient in wireless networks employing channel sensing as part of their medium access mechanism. While CCA itself is implement...
147
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INFOCOM
2006
IEEE
15 years 12 months ago
2006
IEEE
— Direction estimation inside buildings is a difficult and challenging task due to severe multipath signal propagation. Numerous algorithms and techniques exist that provide hig...
145
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IPPS
2006
IEEE
15 years 12 months ago
2006
IEEE
This work presents a new approach to solve the location management problem by using the location areas approach. A combination of a genetic algorithm and the Hopfield neural netwo...