With the birth of the IoT era, it is evident that the existing number of devices is going to rise
exponentially. Any two devices will communicate with each other using the same frequency …

Rapid growth of wireless applications and services has made it essential to address
spectrum scarcity problem. if we were scan a portion of radio spectrum including revenue …

Cognitive radio (CR) is a smart communication innovation in the development of the
network. With advances in remote communications, the issue of bandwidth has proven to be …

The underutilization of existing radio spectrum and scarcity of available channel become a
challenge for modern era communication system. Services such as high speed data …

There is a huge demand for spectrum, but in conventional system radio spectrum is
inefficiently used. To overcome this problem and improve spectrum utilization, cognitive …

Cognitive radio (CR) is the enabling system for sustaining dynamic spectrum admittance: the
policy that addresses the spectrum shortage difficulty that is encountered in many countries …

In wireless technologies the importance of spectrum is rapidly increases hence traffic of
spectrum is also increases day by day. However, it seems that the current technologies do …

With the growth of subscribers in wireless and data communication there is a scarcity of
additional bandwidth to meet the demand. For the efficient usage of the spectrum bandwidth …

Around the world static allocation of spectrum scheme is commonly used which is allocated
to specific technology based services, such as mobile, fixed, broadcast, fixed satellite and …

Spectrum sensing problems are increasing day by day which is due to the increase in use of
cognitive radio. Cognitive radio is one of the emerging technologies, which increases …