Recently, cognitive radio (CR) has become a key technology for addressing spectrum
scarcity. In CR networks, spectrum access should not interfere the colocate incumbent …

Cognitive radio networks (CRNs) have emerged as a critical technique for solving spectrum
shortage problems and enhancing the utilization of licensed channels. To prevent …

In cognitive radio (CR) networks, medium access control (MAC) protocols play an important
role to exploit the spectrum opportunities, manage the interference to primary users (PUs) …

Cognitive radio networks hold the key to achieving better radio bandwidth utilization and
improving the quality of wireless applications. The next step in this fast emerging paradigm …

Cognitive radio network (CRN) is a promising solution to spectrum scarcity that uses the
dynamic spectrum access mechanism to increase the efficiency of the underutilized licensed …

Cognitive radio (CR) technology enables the opportunistic use of the portions of the licensed
spectrum by the CR users, while ensuring low interference to the primary user (PU) activity …

The massive usage of Internet-of-Things devices in various smart applications enables
spectrum scarcity issues. In order to enhance the dynamic spectrum capability, cognitive …

Since cognitive radio technology can significantly boost spectrum utilization by exploiting
radio spectrum unused by licensed users, it is rapidly gaining popularity and inspiring …

Cognitive radio (CR) is a promising technology that allows devices to effectively utilize the
underutilized or unutilized portions of the licensed spectrum. In literature, several channel …

Cognitive radio networks have been recognized as a promising paradigm to address the
spectrum under-utilization problem. To improve spectrum efficiency, many operations such …