146 search results - page 9 / 30 » Spectrum based fraud detection in social networks |
MOBICOM
2010
ACM
13 years 7 months ago
2010
ACM
Guardbands are designed to insulate transmissions on adjacent frequencies from mutual interference. As more devices in a given area are packed into orthogonal wireless channels, c...
GLOBECOM
2008
IEEE
14 years 2 months ago
2008
IEEE
Abstract— We present a collaborative algorithm to enable opportunistic spectrum access for cognitive radios in the presence of multiple co-channel transmitters. A spectrum hole d...
INFOCOM
2009
IEEE
14 years 2 months ago
2009
IEEE
—Cooperative spectrum sensing is attracting more attention in Cognitive Radio networks. This paper proposes a fully distributed consensus-based cooperative spectrum sensing schem...
JSAC
2011
13 years 2 months ago
2011
Abstract—Cognitive radio (CR) technology enables the opportunistic use of the vacant licensed frequency bands, thereby improving the spectrum utilization. However, the CR operati...
VTC
2010
IEEE
13 years 5 months ago
2010
IEEE
Cognitive radios are devices capable of sensing a large range of frequencies in order to detect the presence of primary networks and reuse their bands when they are not occupied. D...