Results 101 to 110 of about 1,869,227 (335)

LTE-U and WiFi carrier aggregation

open access: yesНаучни трудове – Висше военноморско училище „Н. Й. Вапцаров“, 2017
Latest scientific research in the wireless communications standards include an approach development that will allow WiFi users to hop over to licenced LTE frequency bands. The idea is when unlicenced LTE bands become overcrowded these frequencies to be utilized for data transfer.
openaire   +2 more sources

Enteropathogenic E. coli shows delayed attachment and host response in human jejunum organoid‐derived monolayers compared to HeLa cells

open access: yesFEBS Letters, EarlyView.
Enteropathogenic E. coli (EPEC) infects the human intestinal epithelium, resulting in severe illness and diarrhoea. In this study, we compared the infection of cancer‐derived cell lines with human organoid‐derived models of the small intestine. We observed a delayed in attachment, inflammation and cell death on primary cells, indicating that host ...
Mastura Neyazi   +5 more
wiley   +1 more source

5G inter-band cooperation technology

open access: yesDianxin kexue, 2021
With the rapid growth of large traffic demand services such as AR/VR, it is imperative to increase the peak rate of single user.The basic principles of multi-band joint transmission technology in different protocol versions were mainly studied, such as ...
Lifang CAO   +3 more
doaj  

MEMS Tunable Frame Antennas Enabling Carrier Aggregation at 600 Mhz

open access: yesIEEE Access, 2020
The goal of this paper is to propose a tunable antenna system, that aims to cover the LTE low band (699–960 MHz), medium band (1710–2100 MHz) and high band (2100–2690 MHz), as well as the 600 MHz bands by tuning.
Carla Di Paola   +4 more
doaj   +1 more source

Transmission Experiment of Bandwidth Compressed Carrier Aggregation in a Realistic Fading Channel

open access: yesIEEE Transactions on Vehicular Technology, 2017
In this paper, an experimental testbed is designed to evaluate the performance of a bandwidth compressed multicarrier technique, termed spectrally efficient frequency division multiplexing (SEFDM) in a carrier aggregation (CA) scenario. Unlike orthogonal
Tongyang Xu, I. Darwazeh
semanticscholar   +1 more source

Organoids in pediatric cancer research

open access: yesFEBS Letters, EarlyView.
Organoid technology has revolutionized cancer research, yet its application in pediatric oncology remains limited. Recent advances have enabled the development of pediatric tumor organoids, offering new insights into disease biology, treatment response, and interactions with the tumor microenvironment.
Carla Ríos Arceo, Jarno Drost
wiley   +1 more source

A Novel Stochastic Learning Automata Based SON Interference Mitigation Framework for 5G HetNets [PDF]

open access: yesRadioengineering, 2016
Long Term Evolution Advanced (LTE-A) Heterogeneous Networks (HetNet) are an important aspect of 5th generation mobile communication systems. They consists of high power macrocells along with low power cells i.e.
M. N. Qureshi, M. I. Tiwana
doaj  

A Mixed-Signal Circuit Technique for Cancellation of Multiple Modulated Spurs in 4G/5G Carrier Aggregation Transceivers

open access: yesIEEE Solid-State Circuits Letters, 2019
In carrier-aggregation 4G/5G transceivers local-oscillator spurs are generated which may down-convert any interferer located at the spurious frequencies. A mixed-signal circuit recreates the spur building laws by multiphase mixing and provides replica of
Silvester Sadjina   +4 more
semanticscholar   +1 more source

Reciprocal control of viral infection and phosphoinositide dynamics

open access: yesFEBS Letters, EarlyView.
Phosphoinositides, although scarce, regulate key cellular processes, including membrane dynamics and signaling. Viruses exploit these lipids to support their entry, replication, assembly, and egress. The central role of phosphoinositides in infection highlights phosphoinositide metabolism as a promising antiviral target.
Marie Déborah Bancilhon, Bruno Mesmin
wiley   +1 more source

5G Cellular User Equipment: From Theory to Practical Hardware Design

open access: yes, 2017
Research and development on the next generation wireless systems, namely 5G, has experienced explosive growth in recent years. In the physical layer (PHY), the massive multiple-input-multiple-output (MIMO) technique and the use of high GHz frequency ...
Dong, Xiaodai, Huo, Yiming, Xu, Wei
core   +1 more source

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