Results 51 to 60 of about 614 (135)

Research on throughput maximization for intelligent reflecting surface assisted dual-hop relay wireless powered communication network

Tongxin xuebao, 2022
To improve the energy and information transmission efficiency of relay-based wireless powered communication network (WPCN), a two intelligent reflecting surface (IRS) assisted dual-hop relay wireless transmission scheme was proposed.In particular, IRS1 ...
Zhen YANG, Xuan FENG, Bin LYU
doaj   +2 more sources

Sum-Throughput Maximization With QoS Constraints for Cooperative WPCNs

IEEE Access, 2019
A wireless powered communication network (WPCN) is considered, which has a hybrid access point (H-AP) and two users with energy harvesting capabilities.
Dongyeong Song, Wonjae Shin, Jungwoo Lee, H. Vincent Poor   +3 more
doaj   +1 more source

Fairness-Aware Resource Allocation in Multi-Source WPCN in the Finite Blocklength Regime

IEEE Access, 2023
In this work, we investigate a wireless powered communication network (WPCN) where multiple sources are jointly utilized for wireless power transfer (WPT).
Ning Guo, Xiaopeng Yuan, Yulin Hu, Anke Schmeink   +3 more
doaj   +1 more source

Lyapunov Drift-Plus-Penalty Based Resource Allocation in IRS-Assisted Wireless Networks with RF Energy Harvesting [PDF]

Radioengineering, 2022
We propose a resource allocation policy for intelligent reflective surface (IRS)-assisted wireless powered communication network (WPCN) where the energy harvesting (EH) users (EHUs) have finite energy storage and data buffers, for storing the harvested ...
S. Pejoski, Z. Hadzi-Velkov, T. Shuminoski   +2 more
doaj  

Harvest-Then-Cooperate: Wireless-Powered Cooperative Communications

, 2015
In this paper, we consider a wireless-powered cooperative communication network consisting of one hybrid access-point (AP), one source, and one relay. In contrast to conventional cooperative networks, the source and relay in the considered network have ...
Chen, He, Li, Yonghui, Rebelatto, Joao Luiz, Uchoa-Filhoand, Bartolomeu F., Vucetic, Branka   +4 more
core   +1 more source

Optimisation of energy efficiency of ambient backscatter communication and reconfigurable intelligent surfaces in non‐orthogonal multiple access downlink

IET Radar, Sonar &Navigation, Volume 18, Issue 9, Page 1481-1493, September 2024.
The authors study the resource allocation problem of non‐orthogonal multiple access (NOMA) downlink in Internet of Things (IoT) environment combined with the Ambient Backscatter Communication (AmBC) and the reconfigurable intelligent surface (RIS). Aiming to maximise the system energy efficiency, and considering the power limitation, rate limitation ...
Ruiman Gao, Suoping Li, Nana Yang, Sa Yang, Qian Yang   +4 more
wiley   +1 more source

An Energy-Efficient Controller for Wirelessly-Powered Communication Networks

, 2019
In a wirelessly-powered communication network (WPCN), an energy access point (E-AP) supplies the energy needs of the network nodes through radio frequency wave transmission, and the nodes store their received energy in their batteries for possible data ...
Makki, Behrooz, Movahednasab, Mohammad, Omidvar, Naeimeh, Pakravan, Mohammad Reza, Svensson, Tommy, Zorzi, Michele   +5 more
core   +1 more source

Energy‐Efficiency Maximization in Backscatter Communication‐Based Non‐Orthogonal Multiple Access System: Dinkelbach and Successive Convex Approximation Approaches

IET Signal Processing, Volume 2024, Issue 1, 2024.
This paper investigates a backscatter communication (BackCom) based non‐orthogonal multiple access (NOMA) system in a multiple‐input and single‐output (MISO) scenario, where two decoding methods are deployed, including the sum‐capacity approach and QR decomposition.
Dingjia Lin, Tianqi Wang, Kaidi Wang, Zhiguo Ding, Hasan Mir   +4 more
wiley   +1 more source

Performance Analysis of a WPCN-Based Underwater Acoustic Communication System

Journal of Marine Science and Engineering, 2023
Underwater acoustic communication (UWAC) has a wide range of applications, including marine environment monitoring, disaster warning, seabed terrain exploration, and oil extraction.
Ronglin Xing, Yuhang Zhang, Yizhi Feng, Fei Ji   +3 more
doaj   +1 more source

Joint Time and Power Allocation in Multi-Cell Wireless Powered Communication Networks

IEEE Access, 2019
This paper investigates the joint time and power allocation in a multi-cell wireless powered communication network (WPCN) with successive interference cancellation. In the WPCN, the hybrid access points broadcast wireless energy to all users and then the
Jiaqian Liang, Daquan Feng, Chunlong He, Gongbin Qian, Chongtao Guo, Nan Zhang   +5 more
doaj   +1 more source