Results 21 to 30 of about 8,215 (254)
A novel model to eliminate the doubly near‐far problem in wireless powered communication network
IET Communications, 2021 In this paper, the newly emerging wireless powered communication network is studied. In doing so, the performance of the global controller (GC) is evaluated, which coordinates the wireless energy transmissions between two sensor nodes.
Jitendra Singh +3 more
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Metasurface-Aided Wireless Power Transfer and Energy Harvesting for Future Wireless Networks
IEEE Access, 2022 The desire for battery longevity and ubiquitous wireless charging of mobile devices is driving researchers to explore divergent strategies to extract and harness energy from ambient radio frequency (RF) signals.
Henry Ojukwu +2 more
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D2D Communications Underlaying Wireless Powered Communication Networks
IEEE Transactions on Vehicular Technology, 2018 In this paper, we investigate the resource allocation problem for D2D communications underlaying wireless powered communication networks, where multiple D2D pairs harvest energy from a power station equipped with multiple antennas and then transmit information signals simultaneously over the same spectrum resource.
Haichao Wang 0001 +3 more
openaire +2 more sources
Tongxin xuebao, 2020 In order to address the unfair user-centric energy efficiency (EE) problem caused by channel difference in the backscatter-assisted wireless powered communication network,a resource allocation scheme was proposed.Firstly,a mixed integer nonconvex ...
Yinghui YE, Liqin SHI, Guangyue LU
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Full-Duplex Operations in Wireless Powered Communication Networks [PDF]
ETRI Journal, 2017 In this paper, a wireless powered communication network (WPCN) consisting of a hybrid access point (H-AP) and multiple user equipment (UEs), all of which operate in full-duplex (FD), is described. We first propose a transceiver structure that enables FD operation of each UE to simultaneously receive energy in the downlink (DL) and transmit information ...
Ju, Hyungsik, Lee, Yuro, Kim, Tae-Joong
openaire +4 more sources
Impact of Wireless-Powered Communications in Coexisting Mobile Networks [PDF]
IEEE Wireless Communications Letters, 2020 <pre>In this letter, we investigate the impact of wireless-powered communications when energy is harvested from multiple static and/or mobile wireless coexisting networks.</pre><pre>In a first step, we characterize the aggregate power received by a harvester node when it harnesses the energy generated by the coexisting wireless ...
Luis Irio +3 more
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Jammer-Assisted Legitimate Eavesdropping in Wireless Powered Suspicious Communication Networks
IEEE Access, 2019 To enhance public safety, it is necessary to legitimately eavesdrop communication between suspicious users, such as terrorists and criminals. In this paper, we investigate legitimate eavesdropping in a wireless-powered suspicious communication network ...
Ding Xu, Hongbo Zhu, Qun Li
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Slotted ALOHA for Wireless Powered Communication Networks
IEEE Access, 2018 Centralized controls in wireless-powered communication networks (WPCNs) induce considerable overhead for channel estimation and high complexity for optimization, as the number of wireless devices (WDs) increases. To tackle this problem, we apply slotted ALOHA protocol to WPCNs and design a slotted ALOHA-based energy-harvesting medium access control ...
Hyun-Ho Choi, Wonjae Shin
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Mine emergency communication system
Gong-kuang zidonghua, 2019 Feasibility of using existing mine communication system as emergency communication system was analyzed. Leakage communication system, inductive communication system, multi-base station mobile communication system, broadcast communication system and ...
Mine emergency communication system
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Sensors, 2023 With the increase in low-power wireless communication solutions, the deployment of Wireless Sensor Networks is becoming usual, especially to implement Cyber-Physical Systems.
Gaël Loubet +3 more
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