ICASSP
2009
IEEE
13 years 11 months ago
2009
IEEE
We present a compressive wide-band spectrum sensing scheme for cognitive radios. The received analog signal at the cognitive radio sensing receiver is transformed in to a digital ...
GLOBECOM
2009
IEEE
13 years 11 months ago
2009
IEEE
—This paper identifies important features a cognitive radio framework should provide, namely a virtual architecture ware abstraction, an adaptive run-time system for managing co...
GLOBECOM
2009
IEEE
13 years 11 months ago
2009
IEEE
Abstract—Cognitive radio technologies have become a promising approach to increase the efficiency of spectrum utilization. Although cognitive radio has been intensively studied ...
GLOBECOM
2009
IEEE
13 years 11 months ago
2009
IEEE
—We address the problem of collaborative sensing in cognitive radios. In a cognitive radio network, all the nodes may sense the spectrum simultaneously. They should then exchange...
PERCOM
2009
ACM
13 years 12 months ago
2009
ACM
—The primary function of a cognitive radio is to detect idle frequencies or sub-bands, not used by the primary users (PUs), and allocate these frequencies to secondary users. The...
ASIAMS
2009
IEEE
13 years 12 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 ...