A Review on Spectrum Sensing Approaches in Cognitive Radio Networks
Keywords:
Wireless Communication, Cognitive Radio, Spectrum SensingAbstract
The frequency spectrum is a limited resource to accommodate the large number of users. Therefore it is
necessary to efficiently utilize it so that the demands of upcoming generation can be fulfilled. In ordinary system, fixed
spectrum accessing technique is used hence it cannot lead to optimum utilization of spectrum. Thus, to efficiently utilize
the scarce resource i.e. frequency band, various techniques are introduced.
This study provides an overview to the concept of cognitive radio and spectrum sensing in cognitive radio. There are
large numbers of techniques that are used for spectrum sensing in cognitive radio and some of them are discussed in this
work. The work that has been done in this domain is also reviewed by the author.