… services over wireless networks is exploding as over four-fifths of the worldwide mobile
data traffic will be video uploading or downloading by 2022 (CISCO Visual Networking Index, …

… growing demands of wireless networks. To accommodate the growing demand of wireless
networks, the different multiple access schemes and Cognitive Radio (CR) networks come to …

… Cognitive radio (CR), which was introduced by Mitola and Maguire in [5], is a key enabling
… radio environments rapidly and efficiently and reduces complexity. This study reviews the …

… ) in Wireless Sensor Network (WSN)-based smart grid applications [25]. Cognitive radio has
… This analysis aims to research the literature on cognitive radio in LPWAN for industrial IoT. …

… and motivations of applying spectrum sensing in cognitive radio networks. The concepts of
half-duplex and full-duplex cognitive radio are presented. The main criteria exploited by SU to …

… In this work, the word green cognitive radio (CR) communication is used to express an
efficient method of the congregation of energy-efficient technologies at different levels to reduce …

… techniques on the basis of network architecture, spectrum allocation … detailed survey on
cognitive radio (CR) technology in SS related to 5G implementation is performed. For a complete …

… literature review on security attacks targeting the physical layer in cognitive radio networks.
We … layer in cognitive radio networks. The main contributions of this paper are the following: …

… It is to be expected that 6G wireless network will support client’s applications … review on
upcoming generation of CR network communication, mentioned mandatory cases, and detailed …

… Therefore, cognitive radio networks (CRN) are the best available technology to cater to
all these challenges for the co-existence of IoT, WSN, 5G, and beyond-5G networks. …