This paper investigates physical layer security (PLS) in cognitive radio inspired non-
orthogonal multiple access (CR-NOMA) networks with multiple primary and secondary …

We consider a cognitive wireless powered communication network sharing the spectrum
with a primary network, which faces security threats from eavesdroppers (EAVs). We …

This paper proposes a secure users-oriented multiple-input and single-output non-
orthogonal multiple access downlink transmission scheme, where multiple legitimate users …

In this article, a joint user pairing and secure resource allocation scheme for cognitive radio
inspired nonorthogonal multiple access (CR-NOMA) femtocells in the presence of a jammer …

Cognitive radio (CR) and massive multiple-input multiple-output (MIMO) have attracted
much interest recently due to the amazing ability to accommodate more users and improve …

The integration of unmanned aerial vehicles (UAVs) with a cognitive radio (CR) technology
can improve the spectrum utilization. However, UAV network services demand reliable and …

The combination of Cognitive Radio with Nonorthogonal Multiple Access (CR-NOMA) has
enormous potential interest to improve spectral efficiency and increase system capacity in …

Due to the broadcast nature of wireless networks, jamming attacks are inevitable. Therefore,
this paper considers enhancing the throughput of a primary user (PU) suffering from a …

Rapid growth in the fifth generation (5G) wireless network applications demands new
requirements on the data storage, computation, and networking. Thus, it will introduce new …

In this paper, we investigate the problem of joint power allocation and collaborative
beamforming for physical layer security in underlay cognitive radio non-orthogonal multiple …