148 search results - page 25 / 30 » Spectrum Sensing in Wideband OFDM Cognitive Radios |
VTC
2010
IEEE
13 years 6 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...
ASIAMS
2009
IEEE
14 years 3 months ago
2009
IEEE
Cognitive radio has the ability to sense the environment and adapt its behavior to optimize communication features, such as quality of service in the presence of interference and ...
JSAC
2008
13 years 8 months ago
2008
Wireless Mesh Networks (WMNs) are envisaged to extend Internet access and other networking services in personal, local, campus, and metropolitan areas. Mesh routers (MR) form the c...
JCIT
2010
13 years 3 months ago
2010
Lack of robustness against noise uncertainty is a bottleneck of current spectrum sensing strategies to detect the primary signals. Due to noise uncertainty, the performance of tra...
ICASSP
2011
IEEE
13 years 5 days ago
2011
IEEE
In this paper, we study the eigenvalue-based spectrum sensing techniques for multiple-antenna cognitive radio networks. First, we study the extreme eigenvalue distributions of a c...