Results 41 to 50 of about 614 (135)
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
Energy Efficiency Maximization for Relay-Assisted WPCN: Joint Time Duration and Power Allocation
IEEE Access, 2018 This paper studies a relay-assisted wireless-powered communication network (WPCN), where a hybrid relay node (HRN) broadcasts radio-frequency energy to energy-harvesting users and forwards these users' data to a base station in amplify-and-forward (AF ...
Fan Yang +4 more
doaj +1 more source
Minimum Throughput Maximization for Multi-UAV Enabled WPCN: A Deep Reinforcement Learning Method
IEEE Access, 2020 This paper investigates joint unmanned aerial vehicle (UAV) trajectory planning and time resource allocation for minimum throughput maximization in a multiple UAV-enabled wireless powered communication network (WPCN).
Jie Tang +5 more
doaj +1 more source
Wireless Powered Communication: Opportunities and Challenges
, 2014 The performance of wireless communication is fundamentally constrained by the limited battery life of wireless devices, whose operations are frequently disrupted due to the need of manual battery replacement/recharging.
Bi, Suzhi, Ho, Chin Keong, Zhang, Rui
core +1 more source
Multi-Antenna Enabled Cluster-Based Cooperation in Wireless Powered Communication Networks
IEEE Access, 2017 In this paper, we consider a wireless powered communication network (WPCN) consisting of a multi-antenna hybrid access point (HAP) that transfers wireless energy to and receives sensing data from a cluster of low-power wireless devices (WDs).
Lina Yuan +4 more
doaj +1 more source
User Cooperation in Wireless Powered Communication Networks
, 2014 This paper studies user cooperation in the emerging wireless powered communication network (WPCN) for throughput optimization. For the purpose of exposition, we consider a two-user WPCN, in which one hybrid access point (H-AP) broadcasts wireless energy ...
Ju, Hyungsik, Zhang, Rui
core +1 more source
IEEE Access, 2019 We consider the “harvest-then-transmit” protocol in a wireless powered communication network (WPCN), where an energy-constrained access point (AP) harvests energy from the radio-frequency signals transmitted by a power beacon (PB) for ...
Tien-Tung Nguyen +3 more
doaj +1 more source
Wireless Networks with Energy Harvesting and Power Transfer: Joint Power and Time Allocation
, 2016 In this paper, we consider wireless powered communication networks which could operate perpetually, as the base station (BS) broadcasts energy to the multiple energy harvesting (EH) information transmitters. These employ "harvest then transmit" mechanism,
Duong, Trung Q. +3 more
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Recent Advances in Joint Wireless Energy and Information Transfer
, 2014 In this paper, we provide an overview of the recent advances in microwave-enabled wireless energy transfer (WET) technologies and their applications in wireless communications. Specifically, we divide our discussions into three parts. First, we introduce
Bi, Suzhi, Ho, Chin Keong, Zhang, Rui
core +1 more source
Energy efficiency maximization in IRS‐aided cooperative WPCN with non‐linear EH users
Electronics Letters, Volume 61, Issue 1, January/December 2025.The paper investigates energy efficiency maximization in intelligent reflecting surfaces aided wireless‐powered communication network with hybrid access point and non‐linear energy harvesting users. The focus is on maximizing energy efficiency at the hybrid access point by jointly optimizing transmit time allocation, power allocation at users, and ...
Bharti Katiyar +3 more
wiley +1 more source