Results 141 to 150 of about 2,418,580 (380)

5G new radio multiuser precoding in geostationary satellite networks

open access: yesInternational Journal of Satellite Communications and Networking, EarlyView.
This work evaluates the standardized 5G new radio codebooks for closed‐loop multiuser precoding in GEO multibeam scenarios and derives a list of recommended 3GPP standard modifications for a proper support to GEO mission needs. Summary The multiuser precoding procedures standardized by the 3rd Generation Partnership Project (3GPP) for new radio (NR ...
Xavier Artiga, Miguel Ángel Vázquez
wiley   +1 more source

Broadcasting Spanning Forests on a Multiple-Access Channel [PDF]

open access: green, 2003
Bogdan S. Chlebus   +2 more
openalex   +1 more source

Performance Analysis of Twins4Space: Latency and Data Rates in a SpaceWire Network

open access: yesInternational Journal of Satellite Communications and Networking, EarlyView.
ABSTRACT Modular Space Systems are an innovative and future‐oriented concept, offering the flexibility to adapt to diverse mission requirements. In our previous paper, we introduced the Twins4Space project, a modular and flexible architecture utilizing a SpaceWire network to connect distributed nodes.
Stefan Lindörfer   +3 more
wiley   +1 more source

Analysis of Intermodulation Distortion in OFDM Based Transmitter Using EER Technique [PDF]

open access: yesRadioengineering, 2016
During the last two decades, new digital modulation systems have appeared in the audio broadcasting. Such broadcasting systems require new transmitters’ concepts to enable the transmission of digitally modulated signals. Moreover, the selected modulation
S. Matejka
doaj  

A novel channel estimation based on spread pilots for terrestrial digital video broadcasting [PDF]

open access: yes, 2008
International audienceIn this paper, we propose a novel channel estimation technique based on spread pilots for digital video broadcasting. This technique consists in adding a linear preceding function before the OFDM modulation and dedicating one of the
Crussière, Matthieu   +3 more
core   +2 more sources

Enhanced Electromagnetic Wave Absorption in Mapbi3 Hybrid Perovskite Through a Defect‐Tunable Green Synthesis

open access: yesSmall Structures, EarlyView.
Mechanosynthesis allowed synthesizing and providing large amount of high‐quality MAPbI3 powders with defects tuned by grinding time. Mechanosynthesized MAPbI3 for 4 h dispersed in a polymeric matrix led to a marked enhancement in dielectric loss at 11.4 GHz, which makes this green synthesis approach promising for producing hybrid perovskites with ...
Yihui Cai   +19 more
wiley   +1 more source

Channel Simulation: Finite Blocklengths and Broadcast Channels

open access: yesIEEE Transactions on Information Theory
38 pages, 6 ...
Michael X. Cao   +3 more
openaire   +2 more sources

Blockchain‐Based Federated Learning Methodologies in Smart Environments for Drone Technology

open access: yesIEEJ Transactions on Electrical and Electronic Engineering, EarlyView.
High‐security transactions are stored in a chain of blocks using blockchain technology. Security and privacy concerns may be addressed by using blockchain technology. Federated learning is a paradigm for increasing data mining accuracy and precision by ensuring data privacy and security for both internet of things (IoT) devices and users in smart ...
Mukkoti Maruthi Venkata Chalapathi   +6 more
wiley   +1 more source

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