Results 51 to 60 of about 19,884 (199)

Practical Demonstration of 5G NR Transport Over-Fiber System with Convolutional Neural Network

Telecom, 2022
This study describes an experimental realization using digital predistortion (DPD) for a fifth generation (5G) multiband new radio (NR) optical front haul (OFH) based Radio over Fiber (RoF) link.
Muhammad Usman Hadi
doaj   +1 more source

Analysis of 5G New Radio Uplink Signals on an Analogue-RoF System Based on DSP-Assisted Channel Aggregation

Applied Sciences, 2018
The 3rd Generation Partnership Project (3GPP) is in the process of developing 5th generation (5G) radio access technology, the so-called new radio (NR). The aim is to achieve the performance requirements forIMT-2020 radio interface technology.
Befekadu D. Mengesha, Pablo Torres-Ferrera, Roberto Gaudino   +2 more
doaj   +1 more source

Understanding the Heart of the 5G Air Interface: An Overview of Physical Downlink Control Channel for 5G New Radio

IEEE Communications Standards Magazine, 2020
New Radio (NR) is a new radio air interface developed by the 3rd Generation Partnership Project (3GPP) for the fifth generation (5G) mobile communications system. With great flexibility, scalability, and efficiency, 5G is expected to address a wide range of use-cases including enhanced mobile broadband (eMBB), ultra-reliable low-latency communications (
Takeda, Kazuki, Xu, Huilin, Kim, Taehyoung, Schober, Karol, Lin, Xingqin   +4 more
openaire   +2 more sources

Analisis Model Propagasi 3GPP TR38.900 Untuk Perencanaan Jaringan 5G New Radio (NR) Pada Frekuensi 2300 MHz di Area Urban

Telekontran : Jurnal Ilmiah Telekomunikasi, Kendali dan Elektronika Terapan, 2022
Layanan 5G New Radio (NR) dapat memberikan keunggulan kecepatan data tinggi dan latensi rendah. Keberadaan teknologi 5G khususnya di Indonesia, sudah diimplementasikan oleh beberapa operator seluler di frekuensi 2300 MHz dan 1800 MHz. Akan tetapi, pengadaan jaringan 5G di Indonesia belum tersebar secara merata.
Muhammad Reza Hidayat, Sofyan Basuki, Fajar Malik Santoso, Hajiar Yuliana   +3 more
openaire   +1 more source

Science‐Towards‐Technology Breakthrough in CO2 Electroreduction: Multiphysics, Multiscale, and Artificial Intelligence Insights

Advanced Materials, EarlyView.
Electrochemical CO2RR is a key technology for converting CO2 into chemicals, but there remains a gap between “laboratory science” and “engineering practice” in current research. This review establishes a multi‐scale research framework, encompassing atomic‐level characterization, microenvironment regulation, external field‐assisted optimization, and AI ...
Ping Hong, Changfan Xu, Huaping Zhao, Yong Lei   +3 more
wiley   +1 more source

Multi-Array 5G V2V Relative Positioning: Performance Bounds

, 2019
We study the performance bounds of vehicle-to-vehicle (V2V) relative positioning for vehicles with multiple antenna arrays. The Cram\'{e}r-Rao bound for the estimation of the relative position and the orientation of the Tx vehicle is derived, when angle ...
García, Mario H. Castañeda, Kakkavas, Anastasios, Nossek, Josef A., Stirling-Gallacher, Richard A.   +3 more
core   +1 more source

Temporal and Cell‐Specific Regulation of Synaptic Homeostasis by the Chromatin Remodeler Chd1

Advanced Science, EarlyView.
Chd1, the Drosophila homologue of mammalian CHD2 ‐ a gene linked to autism, epilepsy, and intellectual disability, is required for synaptic homeostatic plasticity. Chd1 in glia is necessary for the rapid induction of synaptic homeostasis, whereas Chd1 in motoneurons, muscle, and glia is critical for long‐term maintenance.
Danielle T. Morency, Tao Cui, Yimei Cai, Chloe Lok, Rachel E. Nokku, Ruoxian Huang, Grace L. Chu, Yumeng Xie, Saleem W. Abu‐Tayeh, Kaikai He, Chengjie Qiu, Junyi Wang, Paxton M. Paganelli, Ting Wang, Gabrielle Williams, Sreejith Nair, Huadong Pei, Dion K. Dickman, Stefano Vicini, Tingting Wang   +19 more
wiley   +1 more source

An Overview and Mechanism for the Coexistence of 5G NR‐U (New Radio Unlicensed) in the Millimeter‐Wave Spectrum for Indoor Small Cells [PDF]

Wireless Communications and Mobile Computing, 2021
In this paper, we first give an overview of the coexistence of cellular with IEEE 802.11 technologies in the unlicensed bands. We then present a coexistence mechanism for Fifth‐Generation (5G) New Radio on Unlicensed (NR‐U) small cells located within buildings to coexist with the IEEE 802.11ad/ay, also termed as Wireless Gigabit (WiGig).
openaire   +1 more source

Antagonistic Ubiquitin Switching by USP7 and RNF40 Orchestrates KDM6A Homeostasis to License Coronavirus Susceptibility

Advanced Science, EarlyView.
We identify an antagonistic ubiquitin circuit that controls cellular permissiveness to multiple coronaviruses. The deubiquitinase USP7 stabilizes the epigenetic regulator KDM6A to upregulate viral receptors, while the E3 ligase RNF40 degrades KDM6A by catalyzing K6/K11‐ubiquitin chains of KDM6A for autophagic degradation.
Meng‐Zhuo Huang, Zhong‐Yuan Yang, Shi Wang, Yan Ge, Lan Lin, Mia Madel Alfajaro, Renata B. Filler, Wan‐Yao Song, Ming‐Zhu Kong, Jin Wei   +9 more
wiley   +1 more source

Integration of Satellites in 5G through LEO Constellations

, 2017
The standardization of 5G systems is entering in its critical phase, with 3GPP that will publish the PHY standard by June 2017. In order to meet the demanding 5G requirements both in terms of large throughput and global connectivity, Satellite ...
Guidotti, Alessandro, Kodheli, Oltjon, Vanelli-Coralli, Alessandro   +2 more
core   +1 more source