Results 11 to 20 of about 6,910,807 (299)

Terfenol-D Based Magnetic Field Sensor With Temperature Independence Incorporating Dual Fiber Bragg Gratings Structure

IEEE Access, 2021
A magnetic field sensor with temperature insensitivity implemented by two fiber Bragg gratings (FBGs) structure is presented and experimentally demonstrated.
Biyan Zhan, Tigang Ning, Li Pei, Jing Li, Ling Liu, Xuekai Gao, Jian Xu, Jingjing Zheng, Jianshuai Wang, Bo Ai   +9 more
doaj   +1 more source

Prediction of Telecommunication Network Fraud Crime Based on Regression-LSTM Model

Wireless Communications and Mobile Computing, 2022
Telecommunication network fraud crimes frequently occur in China. Predicting the number and trend of telecommunication network fraud will be of great significance to combating crimes and protecting the legal property of citizens.
Youyang Gao, Dechun Yin, Xiaoliang Zhao, Yu Wang, Yan Huang   +4 more
semanticscholar   +1 more source

A taxonomy of multilayer network design and a survey of transportation and telecommunication applications

European Journal of Operational Research, 2022
. Multilayer network design represents an important problem class when interwoven design decisions must be simultaneously considered. Examples of such cases are the selection of trains and blocks in freight rail transportation and the selection of ...
T. Crainic, B. Gendron, M. R. A. Kazemzadeh   +2 more
semanticscholar   +1 more source

Smart antenna with automatic beam switching for mobile communication

EURASIP Journal on Wireless Communications and Networking, 2020
A new kind of smart antenna capable of automatically switching its main beam to track a moving target is presented. The antenna, which is suitable for mobile communication in long straight spaces, such as railways or highways, integrates a sensing ...
Yuchen Ma, Junhong Wang, Yujian Li, Meie Chen, Zheng Li, Zhan Zhang   +5 more
doaj   +1 more source

Interval-Adjustable Multi-Wavelength Erbium-Doped Fiber Laser With the assistance of NOLM or NALM

IEEE Access, 2021
A novel interval-adjustable multi-wavelength erbium-doped fiber laser (EDFL) is experimentally demonstrated in this paper. The proposed EDFL is based on the cascaded structure of two-segment Sagnac filter and nonlinear optical loop mirror (NOLM).
Qi Zhao, Li Pei, Jianshuai Wang, Yuheng Xie, Zuliang Ruan, Jingjing Zheng, Jing Li, Tigang Ning   +7 more
doaj   +1 more source

The Concept of Building a Network of Digital Twins to Increase the Efficiency of Complex Telecommunication Systems

Complex, 2021
The technical literature actively discusses ideas for creating digital twins to solve a wide range of problems that arise for enterprises of various kinds.
S. Seilov, A. T. Kuzbayev, A. Seilov, D. S. Shyngisov, V. Goikhman, A. Levakov, N. Sokolov, Y. Zhursinbek   +7 more
semanticscholar   +1 more source

Dual-Beam Leaky-Wave Antenna Array With Capability of Fixed-Frequency Beam Switching

IEEE Access, 2020
A novel fixed-frequency beam switchable dual-beam antenna array is presented, which consists five dual-beam leaky-wave antenna (LWA) elements designed on substrate integrated waveguide (SIW) and integrated together on a common substrate. The LWAs work on
Xiaowen Li, Junhong Wang, Zheng Li, Yujian Li, Meie Chen, Zhan Zhang   +5 more
doaj   +1 more source

Demonstration of Software Defined Network Services Utilizing Quantum Key Distribution Fully Integrated with Standard Telecommunication Network

Quantum Reports, 2020
We present a demonstration of software defined networking (SDN) services utilizing quantum key distribution (QKD) technology, fully integrated with standard telecommunication network connecting production facilities of Telefonica in Madrid.
D. López, V. Martín, V. López, F. de la Iglesia, A. Pastor, H. Brunner, A. Aguado, S. Bettelli, F. Fung, D. Hillerkuss, L. Comandar, Dawei Wang, A. Poppe, J. Brito, P. Salas, M. Peev   +15 more
semanticscholar   +1 more source

Photonic Generation of Triangular-Shaped Waveform With Tunable Symmetry Factor Based on Two Single-Drive Mach-Zehnder Modulator

IEEE Photonics Journal, 2020
An approach to generating triangular-shaped waveform with variable symmetry based on two single-drive Mach-Zehnder Modulator is proposed and analyzed. By setting the bias state of modulators, the rotation angle of polarization controller, phase shift of ...
Chuangye Wang, Tigang Ning, Jing Li, Li Pei, Jingjing Zheng, Guobin Ren, Beilei Wu, Xiaowei Dong   +7 more
doaj   +1 more source

Segmented Cladding Fiber With a High-Index Ring in Core for Wideband Single-Mode Operation in Any Bending Orientation

IEEE Photonics Journal, 2021
A resonant-ring-assisted large mode area segmented cladding fiber (RR-SCF) with a high-index ring in the core is proposed. Numerical investigations of the effects of the high-index ring on the leakage losses of guiding modes, mode area, and electric ...
Z. Guo, L. Pei, T. Ning, J. Zheng, J. Li, J. Wang   +5 more
doaj   +1 more source