Energy-efficient scheduling for active RIS-assisted self-sustainable wireless powered IoT networks in smart societies

S Mao, L Liu, C Shao - Sustainable Cities and Society, 2023 - Elsevier
Integrating wireless powered communication networks (WPCNs) into low-power internet of
things (IoT) is a promising technique to achieve sustainable cities and society. However, the …

STAR-RIS assisted wireless powered IoT networks

W Du, Z Chu, G Chen, P Xiao, Y Xiao… - IEEE Transactions on …, 2023 - ieeexplore.ieee.org
The paper proposes a novel design of simultaneously transmitting and reflecting
reconfigurable intelligent surfaces (STAR-RIS) in a wireless powered Internet of Things (IoT) …

Gain without pain: Recycling reflected energy from wireless powered RIS-aided communications

H Xie, B Gu, D Li, Z Lin, Y Xu - IEEE Internet of Things Journal, 2023 - ieeexplore.ieee.org
In this article, we investigate and analyze energy recycling for a reconfigurable intelligent
surface (RIS)-aided wireless-powered communication network. As opposed to the existing …

Robust beamforming design and time allocation for IRS-assisted wireless powered communication networks

Z Li, W Chen, Q Wu, H Cao, K Wang… - IEEE Transactions on …, 2022 - ieeexplore.ieee.org
In this paper, a novel intelligent reflecting surface (IRS)-assisted wireless powered
communication network (WPCN) architecture is proposed for power-constrained Internet-of …

RIS-enhanced WPCNs: Joint radio resource allocation and passive beamforming optimization

Y Xu, Z Gao, Z Wang, C Huang… - IEEE Transactions on …, 2021 - ieeexplore.ieee.org
Wireless-powered communication and reconfigurable intelligent surface (RIS) can
complement each other for increasing energy utilization and spectrum efficiency by …

IRS-assisted wireless powered IoT network with multiple resource blocks

Z Chu, P Xiao, D Mi, W Hao, Q Chen… - IEEE transactions on …, 2023 - ieeexplore.ieee.org
In this paper, we investigate an intelligent reflecting surface (IRS)-assisted wireless powered
Internet of Things (WP-IoT) network that operates in multiple resource blocks (RBs) …

Resource allocation for IRS-assisted wireless powered communication networks

H Cao, Z Li, W Chen - IEEE Wireless Communications Letters, 2021 - ieeexplore.ieee.org
This letter studies a multi-user intelligent reflecting surface (IRS)-assisted wireless powered
communication networks (WPCN) system. Specifically, a multi-antenna energy station (ES) …

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 …

Outage-constrained energy efficiency maximization for RIS-assisted WPCNs

Z Gao, Y Xu, Q Wang, Q Wu, D Li - IEEE communications letters, 2021 - ieeexplore.ieee.org
In this letter, we investigate robust resource allocation for reconfigurable intelligent surface
(RIS)-assisted wireless-powered communication networks, where the RIS assists energy …

Resource allocation for intelligent reflecting surface assisted wireless powered IoT systems with power splitting

Z Zhu, Z Li, Z Chu, G Sun, W Hao… - IEEE Transactions on …, 2021 - ieeexplore.ieee.org
This paper proposes a new transmission policy for intelligent reflecting surface (IRS)
empowered wireless powered internet of things systems. Particularly, an energy station (ES) …