Results 1 to 10 of about 3,478 (154)

Strain FBG-Based Sensor for Detecting Fence Intruders Using Machine Learning and Adaptive Thresholding [PDF]

open access: yesSensors, 2023
This paper demonstrates an intruder detection system using a strain-based optical fiber Bragg grating (FBG), machine learning (ML), and adaptive thresholding to classify the intruder as no intruder, intruder, or wind at low levels of signal-to-noise ...
Ahmad Elleathy   +8 more
doaj   +2 more sources

Joint Fiber Nonlinear Noise Estimation, OSNR Estimation and Modulation Format Identification Based on Asynchronous Complex Histograms and Deep Learning for Digital Coherent Receivers [PDF]

open access: yesSensors, 2021
In this paper, asynchronous complex histogram (ACH)-based multi-task artificial neural networks (MT-ANNs), are proposed to realize modulation format identification (MFI), optical signal-to-noise ratio (OSNR) estimation and fiber nonlinear (NL) noise ...
Shuailong Yang   +6 more
doaj   +2 more sources

A Novel Algorithm for Routing Paths Selection in Mesh-Based Optical Networks-on-Chips [PDF]

open access: yesMicromachines, 2020
Optical networks-on-chips (ONoCs) is an effective and extensible on-chip communication technology, which has the characteristics of high bandwidth, low consumption, and low delay.
Xiao-Ping Yang   +8 more
doaj   +2 more sources

Optical Performance Monitoring Method Based on Fine-grained Constellation Diagram Recognition [PDF]

open access: yesJisuanji kexue, 2023
In optic fiber communication,traditional optical performance monitoring(OPM) mainly relies on analyzing the time-frequency domain information of the signal.However,conventional methods cannot complete multi-task joint monitoring,so they are less flexible.
CHEN Jinjie, HE Chao, XIAO Xiao, LEI Yinjie
doaj   +1 more source

OSNR Prediction Method for based on Hybrid Machine Learning

open access: yesGuangtongxin yanjiu, 2021
With the vigorous development of network technology, optical networks are developing in the direction of ultra-highspeed and large-capacity. Since the structure of the optical network is becoming more complex.the optical signal will inevitably suffer ...
Feng WANG   +5 more
doaj   +3 more sources

Distributed remote antenna unit with selection‐based of (RoF‐IoT) paradigm: Performance improvement

open access: yesIET Communications, EarlyView., 2022
Abstract Mixing the wireless medium with fiber optics can form a new communication system called a radio‐over‐fiber (RoF) network; it is a promising solution that can provide high bandwidth and a reliable connection between numerous sensors in wireless sensor networks (WSN) and the central office (base station) within a particular area.
Shakir Salman Ahmad   +2 more
wiley   +1 more source

All‐Optical Parametric‐Assisted Oversampling and Decimation for Signal Denoising Amplification

open access: yesLaser &Photonics Reviews, Volume 17, Issue 6, June 2023., 2023
In digital signal processing, decimation can be employed to mitigate noise content by linearly combining consecutive samples of an oversampled signal. This article introduces an optical counterpart of digital decimation in a process referred to as Parametric‐assisted Oversampling and Decimation (POD).
Manuel P. Fernandez   +5 more
wiley   +1 more source

A MIMO‐Enabled Free Space Optical Link under Log‐Normal Fading/Gamma‐Gamma Channel: Exploring an Optimal Modulation Scheme

open access: yesInternational Journal of Optics, Volume 2023, Issue 1, 2023., 2023
The technology of free‐space optical communication (FSOC) systems has some distinctive merits compared to other technologies. Its use is extremely beneficial to meet the exigencies of optical telecommunications and wireless networks (OTWNs). However, since the OTWNs transport a lot of data, the choice of a reliable modulation scheme is highly crucial ...
Haroun Errachid Adardour   +3 more
wiley   +1 more source

Improving the Performance of Optical Phased Array by Reducing Relative Intensity Noise of Optically Injection-Locked Laser Array

open access: yesPhotonics, 2022
Relative intensity noise (RIN) is an important factor that determines the performance of optical phased arrays (OPA) that are configured using semiconductor lasers as light emission sources. This study proposes a method of improving the optical signal-to-
Anh-Hang Nguyen, Hyuk-Kee Sung
doaj   +1 more source

Digital Signal Processing for High‐Speed THz Communications

open access: yesChinese Journal of Electronics, Volume 31, Issue 3, Page 534-546, May 2022., 2022
The use of advanced digital signal processing (DSP) technology in the high‐speed terahertz (THz) communication can effectively compensate the linear and nonlinear effects of the system and further improve the transmission performance of the system.
Jianjun YU, Yi WEI
wiley   +1 more source

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