Results 61 to 70 of about 21,532,810 (248)

A Crisis in "Open Access": Should Communication Scholarly Outputs Take 77 Years to Become Open Access? [PDF]

open access: yes, 2019
This study diachronically investigates the trend of the “open access” in the Web of Science (WoS) category of “communication.” To evaluate the trend, data were collected from 184 categories of WoS from 1980 to 2017.
Kalantari, Abdolhosein   +17 more
core   +1 more source

Covert communication performance evaluation in UAV-assisted rate-splitting multiple access systems.

open access: yesPLoS ONE
In this paper, we investigate using rate-splitting multiple access (RSMA) to facilitate covert communication in a multi-user unmanned aerial vehicle (UAV) downlink communication network that is being monitored by a warden (Willie).
Nguyen Hong Nhu   +4 more
doaj   +1 more source

Performance Analysis of Cooperative Non-Orthogonal Multiple Access in Visible Light Communication

open access: yesApplied Sciences, 2019
Nowadays, visible light communication (VLC) systems have become one of the candidate technologies for high data rate indoor communications. However, the main challenge to develop a high data rate VLC system is the narrow modulation bandwidth of light ...
Hesham Sadat   +3 more
doaj   +1 more source

TDMA Scheduling in Spatially Extended LiFi Networks

open access: yesIEEE Open Journal of the Communications Society, 2020
Optical Wireless Communication (OWC) has attracted significant attention from academia and industry as a promising solution to complement traditional radio frequency communication.
Jona Beysens   +3 more
doaj   +1 more source

Lysyl oxidase (LOX)‐mediated remodeling of the extracellular matrix

open access: yesFEBS Letters, EarlyView.
The lysyl oxidase (LOX) family of enzymes drives extracellular matrix remodeling by oxidizing collagen, elastin, and fibronectin, promoting covalent cross‐link formation. This activity regulates tissue architecture and mechanical properties, while its dysregulation contributes to fibrosis, cardiovascular disease, glaucoma, connective tissue disorders ...
Fernando Rodríguez‐Pascual   +3 more
wiley   +1 more source

A Class of Codes for Multiple-access Satellite Communication Systems [PDF]

open access: yes, 1966
Codes for multiple-access communication satellite systems using time-frequency ...
Spira, P. M.
core  

Deep learning based demodulation method for multiple access of visible light communication in 6G

open access: yesDianxin kexue
Because the modulation bandwidth of the light emitting diode is narrow, the capacity of the visible light communication system is limited, the spectral efficiency and number of endpoint user can be improved by the multiple access technique.
SHAO Xinyu, YAO Yao, WANG Liang
doaj   +2 more sources

A New Time-Hopping Multiple Access Communication System Simulator: Application to Ultra-Wideband

open access: yesEURASIP Journal on Advances in Signal Processing, 2005
Time-hopping ultra-wideband technology presents some very attractive features for future indoor wireless systems in terms of achievable transmission rate and multiple access capabilities.
José M. Páez-Borrallo   +1 more
doaj   +1 more source

The Application of Power-Domain Non-Orthogonal Multiple Access in Satellite Communication Networks

open access: yesIEEE Access, 2019
Satellite communication networks are expected to be indispensable as part of an integrated complement for the upcoming 5G networks since they can provide the most comprehensive coverage and reliable connection for areas where are economically unviable ...
Xiaojuan Yan   +6 more
doaj   +1 more source

Soft motions encoded by the fold and mediated by conserved hinge sites drive V‐ATPase allosteric machinery and autoinhibition

open access: yesFEBS Letters, EarlyView.
Vacuolar H+‐ATPase (V‐ATPase) is a multisubunit rotary proton pump that acidifies intracellular compartments. Using elastic network models, we identified conserved hinge residues that govern its large‐scale functional motions. We show that intrinsically encoded ‘soft modes’ drive critical functional transitions, including rotary catalysis and ...
Diksha Parwana   +3 more
wiley   +1 more source

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