Results 111 to 120 of about 769 (214)
Orthogonal Time Frequency Space Modulation (OTFS) for Positioning Using LEO Satellites
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
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
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
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
© 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
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
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
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
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
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

