Special Issue Article
A Simplified Compendium on Spectrum Sensing Techniques and Models for Cognitive Radio Environments
Spectrum utilization and management concepts have become the primary focus area of research over the past couple of decades. Some of the key breakthroughs in this regard would be the development of software defined radios and intelligent cognitive radio networking systems. One of the most challenging stages of spectrum management would be to understand when the channel remains free over a period of time, how to identify the same and make smooth handoffs between the under-utilized resources. This survey aims in bringing together some of most notable findings in spectrum sensing. This will serve as a compendium as well as a guide for researcher groups, either to take up other avenues of spectrum sensing orproceeding to one of the other levels of cognitive capabilities such as spectrum sharing, mobility and management, without the need for making a new sensing algorithm. Different aspects of Cooperative and Non Cooperative methods of sensing are discussed here.