The major hurdle that restricts the efficient utilization of radio spectrum is its inflexible and
rigid licensing scheme. This constraint limits the emerging wireless systems to operate in …

The continuous evolution of wireless communication technology has developed many new
paradigms like IOT, M2M communication and 5G. Due to the continuous deployment of …

Cognitive Radio Network (CRN) was designed to lessen the shortage of radio resources.
The Secondary Users (SUs) can opportunistically utilize any available spectrum when the …

Widely regarded as one of the most promising emerging technologies for driving the future
development of wireless communications, cognitive radio has the potential to mitigate the …

Cognitive Radio Network (CRN) has been emerged as a hopeful solution to utilize a
statically allocated spectrum in an optimistic manner with dynamic spectrum access. At …

It is guessed that cognitive radios would be urgent in tending to the quickly developing traffic
demand for remote frameworks. To improve radio spectrum utilization, a cognitive radio hub …

Abstract Development of 5G technology and Internet of Things (IoT) devices has resulted in
higher bandwidth requirements leading to increased scarcity of wireless spectrum. Cognitive …

Cognitive radio is the enabling technology for dynamic spectrum access, which may
potentially mitigate the radio spectrum scarcity problem encountered in many countries …

Contemporary wireless systems must meet increased bandwidth requirements due to the
persistent trend for higher multimedia data rates. Increased bandwidth may be achieved by …

Spectrum efficiency and energy efficiency are two critical issues for wireless communication
networks. As a promising paradigm to improve spectrum usage efficiency, much attention …