The rapid growth in wireless communications has contributed to a huge demand on the
deployment of new wireless services in both the licensed and unlicensed frequency …

Cognitive radio network (CRN) is a pioneering technology that was developed to improve
efficiency in spectrum utilization. It provides the secondary users with the privilege to …

Cognitive radio (CR) has emerged as a smart solution to spectrum bottleneck faced by
current wireless services, under which licensed spectrum is made available to intelligent …

The rapidly growing number of wireless communication devices has led to massive
increases in radio traffic density, resulting in a noticeable shortage of available spectrum. To …

Cognitive Radio (CR) is a promising technology that can alleviate the spectrum shortage
problem by enabling unlicensed users equipped with CRs to coexist with incumbent users in …

In order to address the spectrum scarcity issues that affect today's wireless services, the
concept of cognitive radio has been proposed. A licensed spectrum is made available to …

Natural frequency spectrum is scared resource; the efficient use of it can only accommodate
the need of future computing world. But efficient use of it is not possible within the existing …

The rapid growth of wireless systems have led to increased demand of the spectrum in the
wireless services. The dynamic allocation of the wireless channel is one of the viable …

the wireless traffic is increasing in an unparalleled way, which causes radio spectrum
shortage. The fixed spectrum assignment policy makes this problem more critical. Cognitive …

Cognitive Radio (CR) technology is developed to overcome the spectrum scarcity due to
rapid development in wireless networks. Both licensed and unlicensed users can utilize the …