963 search results - page 145 / 193 » Conditional Digital Signatures |
GLOBECOM
2007
IEEE
14 years 3 months ago
2007
IEEE
— Motorola Labs implemented an experimental cognitive radio system for use at the Dynamic Spectrum Access Networks (DySPAN) Symposium 2007. To exercise a practical communication ...
ICC
2007
IEEE
14 years 3 months ago
2007
IEEE
—Pervasive communications are increasingly sent over mobile devices and personal digital assistants. This trend has been observed during the last football world cup where cellula...
VTC
2007
IEEE
14 years 3 months ago
2007
IEEE
Abstract— Datacasting employs the excess bandwidth from digital television signals for use in one-way data transmission, and it is being used successfully for high-speed download...
VTC
2007
IEEE
14 years 3 months ago
2007
IEEE
Provision of mobile broadband wireless access, for instance via high altitude platforms (HAPs) to the passengers on a high-speed train, requires the development of efficient and r...
APCCAS
2006
IEEE
14 years 2 months ago
2006
IEEE
Abstract - This paper describes the design of a 12-bit digital-to-analog converter for a wireline modem chip implemented in a 0.13tm digital CMOS technology. Transistor-level simul...