Results 51 to 60 of about 6,569 (157)

Time Allocation and Load Balancing in Multi-Cell Wireless Powered Communication Networks

open access: yesIEEE Access, 2016
This paper jointly optimizes intra-cell time allocation and inter-cell load balancing to maximize the network sum-throughput in multi-cell wireless powered communication networks. Since the considered problem is a mixed integer programming problem, it is
Chongtao Guo, Bin Liao, Lei Huang
doaj   +1 more source

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

open access: yesIEEE 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   +5 more
doaj   +1 more source

Wireless Powered Communication Networks: TDD or FDD?

open access: yes, 2018
In this paper, we compare two common modes of duplexing in wireless powered communication networks (WPCN); namely TDD and FDD. So far, TDD has been the most widely used duplexing technique due to its simplicity. Yet, TDD does not allow the energy transmitter to function continuously, which means to deliver the same amount of energy as that in FDD, the ...
Ahmadian, Arman, Park, Hyuncheol
openaire   +2 more sources

User Cooperation in Wireless Powered Communication Networks With a Pricing Mechanism

open access: yesIEEE Access, 2017
This paper considers user cooperation and a pricing mechanism in a wireless-powered communication network (WPCN) in which two users harvest energy from a dedicated hybrid access point (H-AP), which has a constant power supply and acts as a power station ...
Haole Chen   +4 more
doaj   +1 more source

Minimum power configuration for wireless communication in sensor networks

open access: yesACM Transactions on Sensor Networks, 2007
This article proposes the minimum power configuration (MPC) approach to power management in wireless sensor networks. In contrast to earlier research that treats different radio states (i.e., transmission/reception/idle) in isolation, MPC integrates them in a joint optimization problem that depends on both the set ...
Xing, Guoliang   +4 more
openaire   +3 more sources

Wireless Power Supply Sensing Tags Based on Anti-Collision Algorithm for Sensing Systems

open access: yesIEEE Access
In wireless sensor networks, sensing tags are battery powered, which also limits the battery life. Therefore, it is particularly important to study self powered sensing tags.
Daneng Pi
doaj   +1 more source

Powering the future: A survey of ambient RF‐based communication systems for next‐gen wireless networks

open access: yesIET Wireless Sensor Systems
Emerging wireless communication networks, exemplified by the evolution from 5G to subsequent technologies, necessitate extensive connectivity among myriad devices to fuel the ongoing technological progress.
Shweta Singh, Manish Kumar, Rahul Kumar
doaj   +1 more source

Pinching Antenna-Aided Wireless Powered Communication Networks

open access: yesIEEE Wireless Communications Letters
In this letter, we investigate a novel pinching antenna (PA)-aided wireless powered communication network (WPCN), in which multiple PAs are activated along a waveguide to establish robust line-of-sight links with multiple devices. Both time division multiple access (TDMA) and non-orthogonal multiple access (NOMA) protocols are considered in the PA-WPCN.
Yixuan Li   +3 more
openaire   +2 more sources

Secrecy Throughput Optimization for the WPCNs With Non-Linear EH Model

open access: yesIEEE Access, 2019
This paper investigates secure communication from a wireless-powered transmitter to a desired receiver with multiple eavesdroppers in the wireless powered communication networks (WPCNs). Considering the non-linear energy harvesting (EH) model, we propose
Xiaochen Liu   +3 more
doaj   +1 more source

Review of Near-Field Wireless Power and Communication for Biomedical Applications

open access: yesIEEE Access, 2017
Near-field magnetic wireless systems have distinct advantages over their conventional farfield counterparts in water-rich environments, such as underwater, underground, and in biological tissues, due to lower power absorption.
Han-Joon Kim   +5 more
doaj   +1 more source

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