Results 61 to 70 of about 74,412 (117)

Cognitive Radio-Assisted NOMA Broadcasting for 5G Cellular V2X Communications: Model of Roadside Unit Selection and SWIPT

Sensors, 2020
The outage performance is a significant problem to implement the Cognitive Radio (CR) paradigm in the Vehicle to Everything (V2X) networks. Recently, more interest has focused on Non-Orthogonal Multiple Access (NOMA) in wireless-powered communication. In
Dinh-Thuan Do, Anh-Tu Le, Thi-Anh Hoang, Byung Moo Lee   +3 more
doaj   +1 more source

Simultaneous harvest-and-transmit ambient backscatter communications under Rayleigh fading

EURASIP Journal on Wireless Communications and Networking, 2019
Ambient backscatter communications is an emerging paradigm and a key enabler for pervasive connectivity of low-powered wireless devices. It is primarily beneficial in the Internet of things (IoT) and the situations where computing and connectivity ...
Furqan Jameel, Tapani Ristaniemi, Imran Khan, Byung Moo Lee   +3 more
doaj   +1 more source

Performance analysis of wireless-powered cognitive radio networks with ambient backscatter

EURASIP Journal on Wireless Communications and Networking, 2019
Ambient backscatter is a promising wireless communication technique where low-power users communicate with each other without any dedicated power source.
Daniyal Munir, Syed Tariq Shah, Kae Won Choi, Tae-Jin Lee, Min Young Chung   +4 more
doaj   +1 more source

Joint Optimization of UAV Trajectory and Resource Allocation in Multi-UAV-Enabled Wireless Powered Communication Networks Under Max–Min Criterion

IEEE Access
We consider a wireless powered communication network (WPCN) where several unmanned aerial vehicles (UAVs) serve as energy transmitters and data collectors for low-powered ground devices (GDs). During the downlink phase, UAVs wirelessly transfer energy to
Tabassum Alam Meem, Hyemin Yu, Minchul Ju   +2 more
doaj   +1 more source

Energy-Efficient Placement of Virtual Network Functions in a Wireless Mesh Network

IEEE Access
In the context of service provisioning, the integration of Network Functions Virtualization (NFV) enhances the flexibility, scalability, and programmability of telecommunication networks.
Auberlin Paguem Tchinda, Besfort Shala, Armin Lehmann, Bogdan Ghita, David Walker, Ulrich Trick   +5 more
doaj   +1 more source

Performance optimization of nonlinear EH technology in green cognitive WPCN

Scientific Reports
A green cognitive Wireless Powered Communication Network (WPCN) is studied in this paper, which uses nonlinear energy harvesting technology and serves as a liner network for the main peer-to-peer communication pathway. The network is composed of a Hybrid
Huajun Chen, Lina Yuan, Linjie Wang, Jing Gong   +3 more
doaj   +1 more source

Network Coding-aware Lifetime Maximal routing in Multi-hop Static Wireless Ad-hoc Networks

Journal of Communications Software and Systems, 2014
In this paper, we address the issue of maximizing the lifetime of a static wireless ad-hoc network wherein the nodes are battery powered and have limited energy.
Rigil Salim, Rajarshi Roy
doaj  

Adaptive wireless-powered network based on CNN near-field positioning by a dual-band metasurface

Nature Communications
With the improvement of industry, the connectivity of electronic devices gradually shift from wired to wireless. As a solution for power delivery, the non-contact power transfer holds promising ways to charge for moving terminals, enabling battery-free ...
De Xiao Xia, Jia Qi Han, Ya Jie Mu, Lei Guan, Xin Wang, Xiang Jin Ma, Li Hao Zhu, Tian Guang Lv, Hai Xia Liu, Yan Shi, Long Li, Tie Jun Cui   +11 more
doaj   +1 more source

Integrated photonics enabling ultra-wideband fibre-wireless communication. [PDF]

Nature
Zhang Y, Shu H, Guo Y, Zhou P, Wang L, Cai J, Yao L, Yang L, Li L, Long T, Zhang Z, Han C, Lu K, Sun Y, Xu Z, Qin J, Tong Y, He Z, Xiao X, Wang L, Chen B, Yu S, Wang X.   +22 more
europepmc   +1 more source

Patient-environment monitoring for smart healthcare in hospitals with cooperative power-data transfer. [PDF]

Sci Rep
Li J, Zhai C.
europepmc   +1 more source