In this paper, a novel reconfigurable intelligent surface (RIS)-assisted HAP-UAV secure multi-
user mixed radio frequency (RF)/free space optical (FSO) system is proposed. Specifically …

In this paper, we investigate the performance of hybrid free-space optical (FSO) and radio
frequency (RF) relay systems in satellite terrestrial integrated network where the effect of …

In order to meet the demands of diverse services within sixth-generation networks across a
range of industries, numerous approaches are being employed to address notable signal …

Free space optical (FSO) communication system is a promising candidate for today's era of
intelligent networks for the reason that it has potential advantages such as, high data rates …

In this article, the physical-layer security of a dual-hop unmanned aerial vehicle-based
wireless network, subject to imperfect channel state information (CSI) and mobility effects, is …

In this article, we study the physical layer security performance of a downlink space–air–
ground-integrated network (SAGIN), where a satellite communicates with the ground …

This paper presents research on the physical layer security performance of a multi-user
mixed RF/FSO system based on optimal user interference. In this system model, the RF link …

In this paper, we aim at tackling the security performances of dual-hop mixed free-space
optical (FSO)/radio frequency (RF) cooperative with the non-orthogonal multiple access …

Simultaneous wireless information and power transmission (SWIPT)-enabled vehicle-to-
vehicle (V2V) systems use radio frequency (RF) signals for both information transmission …

In this paper, we design a jamming alleviation plan to protect a mixed radio frequency/free-
space optical (RF/FSO) relay tactical network in the context that both RF and FSO systems …