Results 61 to 70 of about 1,543 (216)

OTFS: A Potential Waveform for Space–Air–Ground Integrated Networks in 6G and Beyond

open access: yesTelecom
6G is expected to provide ubiquitous connectivity, particularly in remote and inaccessible environments, by integrating satellite and aerial networks with existing terrestrial networks, forming Space–Air–Ground Integrated Networks (SAGINs).
Obinna Okoyeigbo   +3 more
doaj   +1 more source

Partial and statistical CSI based precoding for reduced‐CP OTFS with inter‐slot‐interference pre‐cancellation

open access: yesIET Communications, 2022
This work studies the precoding methods for the reduced cycle‐prefix (CP) orthogonal time frequency space (OTFS) modulation to simplify the receiver design.
Yuan Zhang, Peng Du, Jiang Wang
doaj   +1 more source

Analysis of Resolution in Aerial Earth Surface Photography [PDF]

open access: yes, 2011
The paper deals with a simplified analysis of subjective resolution of an aerial sensing system for Earth surface photography in the visible light spectrum. The proposed simplified linear method allows approximate estimation of the minimal target size in
Ricny, Vaclav, Slanina, Martin
core   +1 more source

Survey of channel estimation method in delay-Doppler domain for OTFS

open access: yesTongxin xuebao, 2022
In order to provide reliable communication service for high-mobility scenarios, 6G can consider DD (delay-Doppler) domain based OTFS (orthogonal time frequency space) as its modulation scheme.By mapping the transmitted symbols onto DD domain and ...
Wang XING   +4 more
doaj   +2 more sources

CDMA/OTFS Sensing Outperforms Pure OTFS at the Same Communication Throughput

open access: yesIEEE Open Journal of Vehicular Technology
There is a dearth of publications on the subject of spreading-aided Orthogonal Time Frequency Space (OTFS) solutions, especially for Integrated Sensing and Communication (ISAC), even though Code Division Multiple Access (CDMA) assisted multi-user OTFS ...
Hugo Hawkins   +3 more
doaj   +1 more source

From Two‐Electron to Four‐Electron System: Electrolyte Regulation for Advanced Aqueous Zn–I2 Batteries

open access: yesCarbon Energy, EarlyView.
This review systematically summarizes recent progress in electrolyte‐regulated aqueous Zn–I2 batteries (AZIBs). It outlines the fundamentals of AZIBs along with their main challenges, and then analyzes electrolyte‐engineering strategies that improve both two‐ and four‐electron reactions.
Yucong Wang   +10 more
wiley   +1 more source

OTFS: A New Generation of Modulation Addressing the Challenges of 5G

open access: yesCoRR, 2018
In this paper, we introduce a new 2D modulation scheme referred to as OTFS (Orthogonal Time Frequency & Space) that multiplexes information QAM symbols over new class of carrier waveforms that correspond to localized pulses in a signal representation called the delay-Doppler representation.
Ronny Hadani, Anton Monk
openaire   +2 more sources

Machine Learning Paradigm for Advanced Battery Electrolyte Development

open access: yesCarbon Energy, EarlyView.
Electrolyte materials determine ion transport kinetics within the bulk and interphases, ultimately influencing the performance of battery systems. As data‐driven paradigms increasingly reshape materials discovery, this review provides an application‐oriented exploration of the intersection between machine learning and electrolyte science. By evaluating
Chang Su   +4 more
wiley   +1 more source

Monosubstituted N‐Arylhydroxylamine Chemistry: Integrating Contemporary Synthetic Approaches for the Efficient Construction of Diverse Heterocyclic Scaffolds

open access: yesChemistry – A European Journal, EarlyView.
Monosubstituted N‐arylhydroxylamines represent a unique subclass of hydroxylamines that act as pivotal intermediates in redox transformations and as versatile platforms for further synthetic transformations. They serve as key building blocks in the synthesis of architecturally complex heterocycles and other valuable organic compounds.
Michael G. Kallitsakis   +2 more
wiley   +1 more source

Design a Phase Plate to Extend the Depth of Field for an Inexpensive Microscope System to Have the Muti-focus Ability [PDF]

open access: yes, 2015
We propose an optical technique, also called wave front coding, that can extend the depth of field optically by phase plate without the need of post digital image processing (PDIP). This technique can replace the present expensive mechanical scanning for
Chow, B.S.
core  

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