IRS-assisted wireless powered NOMA: Do we really need different phase shifts in DL and UL?

Q Wu, X Zhou, R Schober - IEEE Wireless Communications …, 2021 - ieeexplore.ieee.org
Intelligent reflecting surface (IRS) is a promising technology to improve the performance of
wireless powered communication networks (WPCNs) due to its capability to reconfigure …

Throughput Maximization of Wireless Powered IoT Network with Hybrid NOMA-TDMA Scheme: A Genetic Algorithm Approach

A Afridi, I Hameed, CE García, I Koo - IEEE Access, 2024 - ieeexplore.ieee.org
In this study, we explore a hybrid non-orthogonal multiple access and time division multiple
access (NOMA-TDMA) approach designed to maximize sum throughput in a wireless …

Zero-energy device networks with wireless-powered RISs

Y Zheng, SA Tegos, Y Xiao… - IEEE Transactions …, 2023 - ieeexplore.ieee.org
In order to realize massive connectivity, high spectral, and energy efficiency in future internet
of things (IoT) networks, reconfigurable intelligent surfaces (RISs) are considered as a …

Throughput maximization for active intelligent reflecting surface-aided wireless powered communications

P Zeng, D Qiao, Q Wu, Y Wu - IEEE Wireless Communications …, 2022 - ieeexplore.ieee.org
This letter considers an active intelligent reflecting surface (IRS)-aided wireless powered
communication network (WPCN), where devices first harvest energy and then transmit …

IRS-aided WPCNs: A new optimization framework for dynamic IRS beamforming

Q Wu, X Zhou, W Chen, J Li… - IEEE Transactions on …, 2021 - ieeexplore.ieee.org
In this paper, we propose a new dynamic IRS beamforming framework to boost the sum
throughput of an intelligent reflecting surface (IRS) aided wireless powered communication …

Energy-balancing resource allocation for wireless cooperative IoT networks with SWIPT

H An, H Park - IEEE Internet of Things Journal, 2021 - ieeexplore.ieee.org
In this article, orthogonal frequency-division multiplexing (OFDM)-based downlink
simultaneous wireless information and power transfer (SWIPT) is considered in the Internet …

Throughput maximization for IRS-assisted wireless powered hybrid NOMA and TDMA

D Zhang, Q Wu, M Cui, G Zhang… - IEEE Wireless …, 2021 - ieeexplore.ieee.org
The high reflect beamforming gain of the intelligent reflecting surface (IRS) makes it
appealing not only for wireless information transmission but also for wireless power transfer …

Energy-efficient optimization for IRS-assisted wireless-powered communication networks

Q Wang, Z Gao, Y Xu, H Xie - 2021 IEEE 93rd Vehicular …, 2021 - ieeexplore.ieee.org
Wireless-powered communication is a promising technique to provide convenient and
perpetual energy for energy-constrained wireless devices. However, the uplink information …

Optimal resource allocation for multiuser Internet of Things network with single wireless-powered relay

P Ramezani, Y Zeng… - IEEE Internet of Things …, 2018 - ieeexplore.ieee.org
Wireless powered communication (WPC), where the required energy for communication is
obtained via radio frequency (RF) energy harvesting, is a promising technology for the …

Designing wireless powered networks assisted by intelligent reflecting surfaces with mechanical tilt

Z Hadzi-Velkov, S Pejoski, N Zlatanov… - IEEE …, 2021 - ieeexplore.ieee.org
In this letter, we propose a fairness-aware rate maximization scheme for a wireless powered
communications network (WPCN) assisted by an intelligent reflecting surface (IRS). The …