Intelligent Wireless Communication System Using Cognitive Radio

This paper investigates one of the basic decision problems faced by a cognitive radio: given a time window of a specific size, a secondary user (SU) should decide

The previous applications work together to enable the creation of a test framework with all the needed functionalities such as real time data reading, CW values

ferroviária ... D ESCRIÇÃO DO CASO DE ESTUDO ... Cargas aplicadas ... M ODELOS NUMÉRICOS DESENVOLVIDOS ... Modelo de elementos finitos de casca contínuo sem elementos de contato

distance vector are not well suited to be applied to CRNs. The main reason is that there are frequent dynamic changes in the CRN that may trigger a large number of

Cognitive Radio (CR) is a developing technology to overcome the problem of using the spectrum inefficiently by improving idle spectrum utilization in both temporally and spatially.

The observation chain (GSM data capture) used for the performance evaluation of the dynamic Bayesian network (DBN) in the modeling and prediction of channel usage

CR is an persuasive resolution to the spectral congestion crisis by establishing the opportunistic exploitation of unused frequency bands that are not significantly engaged through

and covering the bandwidth B (in Hertz). For a given geographic area, the FCC would establish an interference temperature limit. This value would be the maximum threshold of