Results 111 to 120 of about 769 (214)

Orthogonal Time Frequency Space Modulation (OTFS) for Positioning Using LEO Satellites

open access: yes
This paper analyses the achievable delay and Doppler estimation accuracies and the Multipath Error Envelopes (MEE) of Low Earth Orbit (LEO) Position-Navigation-Timing (PNT) systems, using the novel Orthogonal Time Frequency Space (OTFS) modulation.
Lohan, Elena Simona   +2 more
core   +1 more source

Channel computation based on multi-scale attention residual network

open access: yesJournal of Information and Intelligence
Orthogonal time-frequency space (OTFS) modulation can effectively counter ICI in high-speed mobile scenarios, fully enhance the spectral efficiency of communication systems in high Doppler expansion scenarios, and improve the quality of communication ...
Wengang Li, Deli Zhou, Qiong Ye
doaj   +1 more source

Recent Advances in Benzannulation Approaches to Aromatic Frameworks

open access: yesChemistry – An Asian Journal, Volume 21, Issue 13, 14 July 2026.
This review summarizes benzannulation strategies reported over the past 5 years, highlighting recent advances that enable efficient access to structurally diverse and highly substituted arenes through both transition‐metal‐catalyzed and metal‐free approaches.
Heeeun Kim, Yonghoon Kwon
wiley   +1 more source

Bottlenecks‐Breaking in Zinc‐Iodine Batteries Toward Practical Implementation: A Review and Perspective

open access: yesENERGY &ENVIRONMENTAL MATERIALS, Volume 9, Issue 4, July 2026.
Aqueous zinc–iodine batteries (Zn–I2Bs) offer promise for grid storage due to safety and cost advantages yet face critical bottlenecks: severe self‐discharge (polyiodide shuttling and HER), limited energy density, sluggish kinetics, and zinc anode instability.
Jialin Yang   +3 more
wiley   +1 more source

Comparison of OTFS diversity performance over slow and fast fading channels

open access: yes, 2019
© 2019 IEEE. Orthogonal time frequency space (OTFS) modulation shows great performance improvement over high-mobility wireless channels compared with traditional orthogonal frequency division multiplexing (OFDM).
Andrew Zhang, J   +5 more
core   +1 more source

Research status of channel estimation and signal detection techniques for orthogonal time frequency space modulation

open access: yesTongxin xuebao
Orthogonal time frequency space (OTFS) modulation is a multiplexing technique designed in the two-dimensional (2D) delay-Doppler domain suited for high Doppler fading channels. OTFS converts a doubly-selective channel into an almost non-fading channel in
WANG Yongchuan, ZHOU Ping, HUANG Ju
doaj   +2 more sources

Outage analysis of OTFS system over time-varying and block time-varying Rician fading channels

open access: yesResults in Engineering
Orthogonal Time Frequency Space (OTFS) modulation is a potential radio interface technique for integrated terrestrial and non-terrestrial networks due to its resilience against severe Doppler spread and high carrier frequency offsets.
Vangara Saiprudhvi   +1 more
doaj   +1 more source

Electrolyte Engineering in Aqueous Zinc‐Ion Batteries: From Solvation Chemistry to Interface Stabilization

open access: yesChemElectroChem, Volume 13, Issue 12, 17 June 2026.
This review summarizes recent progress in electrolyte engineering for aqueous zinc‐ion batteries. It focuses on solvation chemistry regulation and interfacial stabilization. Strategies including solvent regulation, electrolyte salt, functional additives, and composite electrolytes are discussed. These approaches help suppress side reactions and improve
Zhenyu Li   +8 more
wiley   +1 more source

LSTM-Based Time-Frequency Domain Channel Estimation for OTFS Modulation

open access: yes
International audienceOrthogonal Time Frequency Space (OTFS) is a promising modulation scheme that works in the delay-Doppler (DD) domain, offering resistance to frequency selective fading and time-varying channels.
Flavia dos Reis, Ana   +4 more
core   +1 more source

Low Complexity RCP-OTFS Systems with Fractional Doppler Shifts Kesirli Doppler Kaymaları ile Düşük Karmaşıklıklı ADÖ-OTFS Sistemleri

open access: yes
Doppler resistant orthogonal time-frequency-space (OTFS) modulation has gained attention to be implemented for next-generation wireless communications systems. Various OTFS frame structures, including the reduced cyclic prefix (RCP), are utilized in OTFS
SERBES, Ahmet   +4 more
core   +1 more source

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