Cooperative spectrum sensing significantly improves the detection reliability of a cognitive
radio network. In cooperative spectrum sensing, cognitive radio nodes send their hard …

In this work, a reconfigurable intelligent surface (RIS)-based multi-input–multi-output (MIMO)
covert communication system is considered and studied for Internet of Things (IoT) networks …

Spectrum sensing is one of the most essential components of cognitive radio since it detects
whether the spectrum is available or not. However, spectrum sensing accuracy is often …

One of the main challenges in cognitive radio networks is the ability of secondary users to
detect the primary user presence with high probability of detection. In previous research …

This study aims the throughput maximization of carrier sense multiple access (CSMA) in
random access cognitive radio networks (CRNs) by using cooperative spectrum sensing. In …

In the field of cognitive radio spectrum sensing, the adaptive silence period management
mechanism (ASPM) has improved the problem of the low time-resource utilization rate of the …

This study investigated the performance of a multi-relay system with the implementation of
the Orthogonal Frequency division multiplexing technique using Amplify-and-Forward (AF) …

This paper deals with the relationship between the sensing time and throughput in a
cognitive radio network (CRN) using energy detector (ED). The sensing time is a period in …