ICC
2007
IEEE
14 years 6 months ago
2007
IEEE
— Cognitive radio has been recently proposed as a promising technology to improve the spectrum utilization efficiency by intelligently sensing and accessing some vacant bands of...
ICC
2007
IEEE
14 years 6 months ago
2007
IEEE
Abstract— Cooperation is increasingly regarded as a key technology for tackling the challenges of a practical implementation of cognitive radio. In this paper, we first give a b...
ICC
2007
IEEE
14 years 6 months ago
2007
IEEE
— Cognitive networks are the latest progression of cognitive functionality into the networking stack, an effort which began with a layer one and two focus on cognitive radios, an...
GLOBECOM
2007
IEEE
14 years 6 months ago
2007
IEEE
—One of the main requirements of cognitive radio systems is the ability to reliably detect the presence of licensed primary transmissions. Previous works on the problem of detect...
GLOBECOM
2007
IEEE
14 years 6 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 ...
WCNC
2008
IEEE
14 years 6 months ago
2008
IEEE
—In this paper, a wireless cognitive radio sensor network is considered, where each sensor node is equipped with cognitive radio and the network is a multi-carrier system operati...
INFOCOM
2008
IEEE
14 years 6 months ago
2008
IEEE
—Cognitive radio presents a new approach to wireless spectrum utilization and management. In this work, the potential performance improvement gained by applying cognitive radio t...
ICC
2008
IEEE
14 years 6 months ago
2008
IEEE
Abstract— The concept of cognitive radio (or secondary spectrum access) is currently under investigation as a promising paradigm to achieve efficient use of the frequency resour...
GLOBECOM
2008
IEEE
14 years 6 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...
GLOBECOM
2008
IEEE
14 years 6 months ago
2008
IEEE
—In this paper, we propose several spectrum sensing methods designed using the generalized likelihood ratio test (GLRT) paradigm, for application in a cognitive radio network. Th...