Results 11 to 20 of about 1,722,563 (207)

Joint Gateway Selection and Resource Allocation for Cross-Tier Communication in Space-Air-Ground Integrated IoT Networks

open access: yesIEEE Access, 2021
Leveraging unmanned aerial vehicles (UAVs) as relays, the space-air-ground integrated Internet of Things (SAG-IoT) networks can provide wireless access services to the connected devices with high data rate, high flexibility, and wide coverage.
Yongpeng Shi, Yujie Xia, Ya Gao
doaj   +1 more source

Graphene-based metasurface sensing applications in terahertz band

open access: yesResults in Physics, 2021
Ultra-high sensitivity sensor has significant application for micro-nano optical devices in terahertz. Here, we propose a simple graphene metasurface, which can achieve obvious graphene plasmon-induced transparency (PIT) phenomenon. We can find that PIT,
Zhihui He   +7 more
doaj   +1 more source

Dynamic SFC placement scheme with parallelized SFCs and reuse of initialized VNFs: An A3C-based DRL approach

open access: yesJournal of King Saud University: Computer and Information Sciences, 2023
Mobile Edge Computing (MEC) is a well-known network architecture that extends cloud computing to the network edge. Compared with cloud computing, Network Function Virtualization (NFV) can provide flexible services in MEC for mobile users. Virtual Network
Hongsheng Xu   +6 more
doaj   +1 more source

Optimal downlink power allocation schemes for OFDM-NOMA-based Internet of things

open access: yesInternational Journal of Distributed Sensor Networks, 2022
With the continuous development of fifth-generation technology, the number of mobile terminal Internet of Things devices has increased exponentially. How to effectively improve the throughput of fifth-generation systems has become a challenge.
Ya Gao   +4 more
doaj   +1 more source

A Study on the Hysteresis Effect and Spectral Evolution in the Mini-Outbursts of Black Hole X-Ray Binary XTE J1550-564

open access: yesFrontiers in Astronomy and Space Sciences, 2021
One normal outburst and three mini-outbursts have been detected by Rossi X-ray Timing Explorer satellite after 2000 in the well-known black hole X-ray binary XTE J1550-564.
Ai-Jun Dong   +10 more
doaj   +1 more source

Tunable plasmon induced transparency in the ellipse-shaped resonators coupled waveguide

open access: yesResults in Physics, 2020
We study spectral responses in a bright-dark mode ellipse-shaped resonators coupled waveguide. The results show that the plasmon-induced transparency (PIT) can be observed in the ellipse-shaped resonators coupled waveguide, and the symmetric line shape ...
Yuqing Wang   +8 more
doaj   +1 more source

Cross-Server Computation Offloading for Multi-Task Mobile Edge Computing

open access: yesInformation, 2020
As an emerging network architecture and technology, mobile edge computing (MEC) can alleviate the tension between the computation-intensive applications and the resource-constrained mobile devices.
Yongpeng Shi, Yujie Xia, Ya Gao
doaj   +1 more source

Dynamic service migration in ultra-dense multi-access edge computing network for high-mobility scenarios

open access: yesEURASIP Journal on Wireless Communications and Networking, 2020
The multi-access edge computing (MEC) has higher computing power and lower latency than user equipment and remote cloud computing, enabling the continuing emergence of new types of services and mobile application.
Haowei Lin   +3 more
doaj   +1 more source

Research Support through Programming: Developing an Automation-Assisted Literature Search

open access: yesTicker, 2021
This case study describes the work of librarians at the Lippincott Library of the Wharton School at the University of Pennsylvania in developing a novel approach to supporting research through programming.
Kevin A Thomas, Marcella E. Barnhart
doaj   +2 more sources

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