Wireless sensor networks (WSN) have been recently deployed to support various Internet-of-Things
(IoT) applications, including sensing in urban environments. Accordingly, several …

… Therefore, we do not assign this set of channels to the nodes; rather, we consider all the
channels only before the transmission starts. Besides, we consider other paths to be served in …

… Now, we review the operation of the cognitive relaying scheme in three time slots. In first
time slot, S transmits its data symbol S1 to A, B and D with total power PS. The received signal …

… The gateways detect free spectral channels in the licensed band and allocate them to IoT …
these channels is made by a cognitive engine (CE). After channel allocation, the IoT devices …

… cooperative relaying system over Rayleigh fading channels. The authors in [21] studied
performance superiority of CR-NOMA network over Rician fading. Therefore, by integrating …

… (5G) networks and the Internet of Things (IoT), require a massive … studies the performance
of underlay cognitive radio (CR) … are performed under Rayleigh fading channel conditions and …

Cognitive radio (CR)-based Internet of Things (IoT) system is an effective step toward a …
Many frameworks have been proposed to build CR-based IoT systems. The CR-based IoT …

… Recently, cognitive radio technology has evolved very rapidly to address this challenge
by allowing unlicensed users to exploit the transmission channel of the licensed user …

… For the considered setup, we derive the SOP, intercept probability, and ESC expressions
over α − µ fading channels. The main contributions of this paper are listed as follows. …

… Cognitive Radio based Internet of Things (CR-IoT) using the hidden Markov model. We
introduced two algorithms; one for free channel … channels. The simulation results show that CR-…