756 search results - page 107 / 152 » Leveraging the CAPTCHA Problem |
INFOCOM
2010
IEEE
13 years 5 months ago
2010
IEEE
Recently, a cooperative paradigm for single-channel cognitive radio networks has been advocated, where primary users can leverage secondary users to relay their traffic. However, i...
IPPS
2010
IEEE
13 years 5 months ago
2010
IEEE
New architectures have recently been proposed and deployed to support end-to-end advance reservation of network resources. These architectures rely on the use a centralized schedul...
MASS
2010
13 years 5 months ago
2010
Traffic congestion is a very serious problem in large cities. With the number of vehicles increasing rapidly, especially in cities whose economy is booming, the situation is gettin...
PIMRC
2010
IEEE
13 years 5 months ago
2010
IEEE
This paper tackles the problem of fast varying channel estimation in LTE systems. Particular attention is given to downlink transmission where OFDMA is used as the multiple access ...
FIW
2009
13 years 5 months ago
2009
A significant number of failures in e-voting systems have arisen because of poorly specified requirements, combined with an ad-hoc approach to engineering multiple variations of si...