Overlay mechanism offers secondary users (SUs) chances to access licensed spectrum of
primary users (PUs) to improve spectrum utilization efficiency. However, these chances …

In cognitive radio networks, direct communications between a primary sender–recipient pair
may be blocked due to uncertainties such as deep fading. Therefore, this paper studies …

Abstract EHONs (Energy Harvesting Overlay Networks) satisfy stringent design
requirements such as high energy-and-spectrum utilization efficiencies. However, due to …

In this article, we compute the Secrecy Outage Probability (SOP) and the Probability of
Strictly Positive Secrecy Capacity (SPSC) for Cognitive Radio Networks with Adaptive …

Artificial noise, energy harvesting, and overlay communications can assure design metrics of
modern wireless networks such as data security, energy efficiency, and spectrum utilization …

The paper derives the secrecy outage probability (SOP) and the probability of strictly positive
secrecy capacity (SPSC) for wireless networks with energy harvesting. The Base Station …

In this paper, we propose to improve the physical layer security of non orthogonal multiple
access (NOMA) using reconfigurable intelligent surfaces (RIS). RIS is decomposed in …

This paper considers an underlay relaying network where a cognitive relay performs decode-
and-forward operation to aid communication between a cognitive source-destination pair …

In this article, we suggest enhancing the physical layer security of wireless systems using
reconfigurable intelligent surfaces (RIS). We compute the secrecy outage probability and the …

In this article, we derive the Secrecy Outage Probability (SOP) and the Probability of Strictly
Positive Secrecy Capacity (SPSC) for Cognitive Radio Networks with Adaptive Transmit …