Results 31 to 40 of about 59,853 (261)

Modulation Scheme Identification Based on Artificial Neural Network Algorithms for Optical Communication System

Journal of ICT Research and Applications, 2020
Higher-order modulation schemes in optical communication systems that suffer from several impairments can use artificial intelligence (AI) algorithms, among other possible techniques, to mitigate these issues.
Mustafa A. Jalil, Jenan Ayad, Hanan J. Abdulkareem   +2 more
doaj   +1 more source

Static and Dynamic Routing, Fiber, Modulation Format, and Spectrum Allocation in Hybrid ULL Fiber-SSMF Elastic Optical Networks

IEEE Access
Traditional standard single-mode fibers (SSMFs) are unable to satisfy the future long-distance and high-speed optical channel transmission requirement due to their relatively large signal losses.
Kangao Ouyang, Fengxian Tang, Zhilin Yuan, Jun Li, Yongcheng Li   +4 more
doaj   +1 more source

Conversions among binary optical modulation formats

Optics Express, 2008
We study the intrinsic relations and conversions among different binary modulation formats such as non-return-to-zero (NRZ), return-to-zero (RZ), carrier-suppressed return-to-zero (CSRZ), differential-phase-shift-keying (DPSK), duobinary, and alternate-mark-inversion (AMI).
Yuanyuan, Lu, Yikai, Su
openaire   +2 more sources

A Dictionary Learning Based Automatic Modulation Classification Method

IEEE Access, 2018
As the process of identifying the modulation format of the received signal, automatic modulation classification (AMC) has various applications in spectrum monitoring and signal interception.
Kezhong Zhang, Easton Li Xu, Zhiyong Feng, Ping Zhang   +3 more
doaj   +1 more source

Function‐driven design of a surrogate interleukin‐2 receptor ligand

FEBS Letters, EarlyView.
Interleukin (IL)‐2 signaling can be achieved and precisely fine‐tuned through the affinity, distance, and orientation of the heterodimeric receptors with their ligands. We designed a biased IL‐2 surrogate ligand that selectively promotes effector T and natural killer cell activation and differentiation. Interleukin (IL) receptors play a pivotal role in
Ziwei Tang, Zelin Cheng, Teng Li, Fulian Wang, Liangminghui Zhang, Xiuxiu He, Lili Liu, Wei Wang, Aibin Liang, Guang Yang   +9 more
wiley   +1 more source

Research on Intelligent Constellation Map Monitoring for Fiber Optic Communication Based on Small Sample Learning Network

IEEE Access
In this study, we develop an intelligent constellation diagram monitoring method for fiber optic communications based on a small sample learning network. The method is designed to identify the modulation format, estimate the optical signal-to-noise ratio
Yiming Wu
doaj   +1 more source

The All-fiber MZI Structure for Optical DPSK Demodulation and Optical PSBT Encoding [PDF]

Journal of Systemics, Cybernetics and Informatics, 2006
Since the beginning of optical telecommunications, the most simple modulation format has been employed in optical links. This format is called OOK (On Off Keying).
Guillaume Ducournau, Olivier Latry, Mohamed Ketata   +2 more
doaj  

Modeling hepatic fibrosis in TP53 knockout iPSC‐derived human liver organoids

Molecular Oncology, EarlyView.
This study developed iPSC‐derived human liver organoids with TP53 gene knockout to model human liver fibrosis. These organoids showed elevated myofibroblast activation, early disease markers, and advanced fibrotic hallmarks. The use of profibrotic differentiation medium further amplified the fibrotic signature seen in the organoids.
Mustafa Karabicici, Soheil Akbari, Ceyda Caliskan, Canan Celiker, Ozden Oz, Leman Binokay, Gökhan Karakulah, Serif Senturk, Esra Erdal   +8 more
wiley   +1 more source

AUTOMATIC RECOGNITION OF BOTH INTER AND INTRA CLASSES OF DIGITAL MODULATED SIGNALS USING ARTIFICIAL NEURAL NETWORK [PDF]

Journal of Engineering Science and Technology, 2014
In radio communication systems, signal modulation format recognition is a significant characteristic used in radio signal monitoring and identification. Over the past few decades, modulation formats have become increasingly complex, which has led to the ...
JIDE JULIUS POPOOLA
doaj  

Modulation Format Identification in Mode Division Multiplexed Optical Networks

IEEE Access, 2019
In this paper, we address the problem of modulation format identification (MFI) for few mode fiber (FMF) transmission in elastic optical networks (EONs).
Waddah S. Saif, Amr M. Ragheb, Hussein E. Seleem, Tariq A. Alshawi, Saleh A. Alshebeili   +4 more
doaj   +1 more source