Results 51 to 60 of about 9,359,534 (311)
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
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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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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
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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
doaj +1 more source
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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Improved IP-level emulation for mobile and wireless systems [PDF]
, 2007 More and more applications and protocols are now running on wireless networks. Testing such applications and protocols is a real challenge as the position of the mobile terminals and environmental effects strongly affect the overall performance.
Emmanuel Conchon +8 more
core +1 more source
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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Wireless-Powered Communication Networks [PDF]
, 2016 Learn the fundamentals of architecture design, protocol optimization, and application development for wireless-powered communication networks with this authoritative guide. Readers will gain a detailed understanding of the issues surrounding architecture and protocol design, with key topics covered including relay-based energy harvesting systems ...
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