Due to the under-utilization problem of the allocated radio spectrum, cognitive radio (CR)
communications have recently emerged as a reliable and effective solution. Among various …

In cognitive radio network (CRN), secondary users (SUs) try to sense and utilize the vacant
spectrum of the legitimate primary user (PU) in an efficient manner. The process of …

In cognitive radio communication, spectrum sensing plays a vital role in sensing the
existence of the primary user (PU). The sensing performance is badly affected by fading and …

Cognitive radio (CR) is the next generation communication technology that combined the
use of radio technology and networking technology. One of the key elements of cognitive …

In the recent wireless communication trends, the radio frequency spectrum is the prime
concern for effective utilization as there are many radio frequency channels simultaneously …

Due to the strict management policy and limited space in wireless spectrum, it is very difficult
to overcome the demands of high data rate and bandwidth requirements in the wireless …