In this paper, we study the trajectory and resource allocation design for downlink energy-
efficient secure unmanned aerial vehicle (UAV) communication systems, where an …

Wireless powered communication (WPC) has been considered as one of the key
technologies in the Internet of Things (IoT) applications. In this paper, we study a wireless …

As telecommunication networks become increasingly critical for societal functioning,
ensuring their resilience in the face of energy disruptions is paramount. This review paper …

Cognitive satellite–terrestrial networks (CSTNs) have been recognized as a promising
network architecture for addressing spectrum scarcity problem in next-generation …

This paper studies a multiple-input single-output non-orthogonal multiple access cognitive
radio network relying on simultaneous wireless information and power transfer. A realistic …

This paper proposes a generalized Firefly Algorithm (FA) to solve an optimization framework
having objective function and constraints as multivariate functions of independent …

A wireless network of multiple transmitter-user pairs overheard by an eavesdropper, where
the transmitters are equipped with multiple antennas, while the users and eavesdropper are …

This paper investigates the energy management of a fuel cell/ultra-capacitor hybrid electric
vehicle (FCHEV) under uncertainty. In addition to fuel economy and fuel cell (FC) system …

Backscatter communications have been considered as one of the key technologies in the
Internet of Things (IoT) applications. In this paper, we consider a multitag ambient …

Taking into account imperfect channel state information, this letter formulates and solves a
joint active/passive beamforming optimization problem in multiple-input single-output …