2007 search results - page 28 / 402 » SPECTRUM |
CVPR
2007
IEEE
14 years 2 months ago
2007
IEEE
Use of IR images is advantageous for many surveillance applications where the systems must operate around the clock and external illumination is not always available. We investiga...
ICC
2007
IEEE
14 years 2 months ago
2007
IEEE
Abstract— Wireless topology control is the process of structuring the connectivity between network nodes to achieve some network-wide goal. This paper presents a cognitive networ...
ICC
2007
IEEE
14 years 2 months ago
2007
IEEE
—Cognitive radio (CR) is seen as one of the revolutionary techniques for future spectrum utilization. The first and probably the most challenging task for CR is to detect/sense t...
ICMCS
2006
IEEE
14 years 2 months ago
2006
IEEE
In order to improve the robustness and imperceptibleness of the image spread spectrum watermark algorithm, a new approach for optimization in 8×8 DCT domain using genetic algorit...
ICWN
2003
13 years 10 months ago
2003
— Most wireless systems receive a license that gives them exclusive access to a block of spectrum. Exclusivity guarantees adequate quality of service, but it also leads to inefï¬...