If you are trying to know about Cognitive Radio and not getting any material or book or any class lecture related to Cognitive Radio then i can bet this is the best material you have ever had !In the below Invited Paper Simon Haykin has described the very basic things of Cognitive Radio which will make your concept clear.If you want to research on Cognitive Radio then the below material on cognitive radio will also provide you the scope to do so.
Cognitive Radio: Brain-Empowered
Wireless Communications
Simon Haykin, Life Fellow, IEEE
Abstract—Cognitive radio is viewed as a novel approach for improving
the utilization of a precious natural resource: the radio
electromagnetic spectrum.
The cognitive radio, built on a software-defined radio, is defined
as an intelligent wireless communication system that is
aware of its environment and uses the methodology of understanding-
by-building to learn from the environment and adapt
to statistical variations in the input stimuli, with two primary
objectives in mind:
• highly reliable communication whenever and wherever
needed;
