Results 31 to 40 of about 7,690,533 (126)
Wireless-Powered Communication Networks With Random Mobility [PDF]
, 2019 In this paper, we consider a wireless-powered communication network (WPCN), where an energy-limited multi-antenna information source, powered by a dedicated power beacon, communicates with a mobile user (MU).
Da Costa, Daniel B. +2 more
core +1 more source
Optimal Time Allocation in Backscatter Assisted Wireless Powered Communication Networks. [PDF]
Sensors (Basel), 2017 This paper proposes a wireless powered communication network (WPCN) assisted by backscatter communication (BackCom). This model consists of a power station, an information receiver and multiple users that can work in either BackCom mode or harvest-then ...
Lyu B, Yang Z, Gui G, Sari H.
europepmc +2 more sources
Energies, 2019 For energy-neutral operation (ENO) of wireless sensor networks (WSNs), we apply a wireless powered communication network (WPCN) to a WSN with a hierarchical structure.
Hyun-Ho Choi, Jung-Ryun Lee
doaj +1 more source
Performance Analysis and Resource Allocations for a WPCN With a New Nonlinear Energy Harvester Model
IEEE Open Journal of the Communications Society, 2020 Wireless powered communication networks (WPCNs) are commonly analyzed by using the linear energy harvesting (EH) model. However, since practical EH circuits are non-linear, the use of the linear EH model gives rise to distortions and mismatches.
Danyang Wang +2 more
doaj +1 more source
Access Mechanism in Wireless Powered Communication Networks With Harvesting Access Point
IEEE Access, 2018 In this paper, we consider a relay-enabled wireless-powered communication network (WPCN), consisting of a relay-hybrid access point (RHAP), harvesting and transmitting nodes, and a base station (BS).
Arshad Iqbal, Yunmin Kim, Tae-Jin Lee
doaj +1 more source
Energy utilization concerned sleep scheduling in Wireless Powered Communication Networks
, 2017 International audienceAbstract: Wireless Powered Communication Networks (WPCN) is one of the promising approaches to extend the lifetime of the energy-constrained wireless networks such as Wireless Sensor Networks (WSNs).
Shu, Lei +9 more
core +1 more source
Sum Throughput Maximization for MIMO Underlay Cognitive Wireless Powered Communication Networks
, 2016 This paper investigates multi-user multi-input multi- output cognitive wireless powered communication networks (WPCN), in which a secondary WPCN shares spectrum with a primary wireless information transfer system. A typical WPCN consists of two different
Lee, Hoon +9 more
core +1 more source
IEEE Access, 2018 The interdisciplinary research of the radio-frequency (RF) signal-based wireless power and information transfer is expected to address the energy shortage issue in the massively deployed low-power Internet of Things devices.
Jianjun Yang +4 more
doaj +1 more source
Uplink Time Scheduling With Power Level Modulation Scheme in Wireless Powered Communication Networks
IEEE Access, 2019 In this paper, we propose an uplink scheduling scheme via downlink signal design for wireless powered communication networks (WPCNs). Although harvest-then-transmit protocols and related optimal resource allocation problems were studied, explicit methods
Yeongwoo Ko, Sang-Hyo Kim, Jong-Seon No
doaj +1 more source
Joint Energy and Information Beamforming Design for RIS-assisted Wireless Powered Communication [PDF]
, 2023 In the wireless powered communication network (WPCN), the wireless energy acquisition is weak due to the fading characteristic of the wireless link, which is hard to supply energy to wireless sensor.
Chen, Z +5 more
core +1 more source