This paper investigates the use of full duplex relaying (FDR) in cognitive radio systems.
Cognitive full duplex relay networks (CogFRNs) offer the advantage not only of increasing …

In this paper, we propose a reconfigurable intelligent surface (RIS)-assisted frequency-
modulated (FM) differential chaos shift keying (DCSK) scheme with simultaneous wireless …

Affine frequency division multiplexing (AFDM) is a new multicarrier technique based on chirp
signals tailored for high-mobility communications, which can achieve full diversity. In this …

Chaos-based communications can be applied to high-speed vehicular information
transmissions thanks to the anti-jamming and anti-interference capabilities of chaotic …

In this paper, throughput achieved in cognitive radio channels with finite blocklength codes
under buffer limitations is studied. Cognitive users first determine the activity of the primary …

In this paper, we introduce transmit antenna selection/maximal-ratio combining (TAS/MRC)
scheme in dual-hop randomize-and-forward (RaF) cognitive multiple-input multiple-output …

Taking account of the limited energy and large feedback delay in satellite communications,
in this article, we propose an energy-efficient power control scheme for cognitive satellite …

The presence of correlated and imperfect channel state information (CSI) affects the secrecy
performance of cognitive radio networks (CRN). In this paper, we propose a physical layer …

With great potential to alleviate spectrum scarcity in the next generation wireless
communication, cognitive satellite terrestrial networks (CSTNs) have attracted considerable …

This work explores the physical layer security of an underlay cognitive radio network (CRN)
in the presence of a powerful interferer called a primary transmitter (PT) under peak …