Results 21 to 30 of about 762 (245)
IEEE Access, 2021 In the last few years, orthogonal time frequency space (OTFS) modulation has received significant attention as an alternative to OFDM especially for high mobilty scenarios.
Suvra Sekhar Das +3 more
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CoRR, 2020 Orthogonal Time Frequency Space (OTFS) is a $\text{2-D}$ modulation technique that has the potential to overcome the challenges faced by orthogonal frequency division multiplexing (OFDM) in high Doppler environments. The performance of OTFS in a multi-user scenario with orthogonal multiple access (OMA) techniques has been impressive.
Kuntal Deka +2 more
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Genomics, 1991 Chromosomal locations have been assigned for the octamer transcription factor, Otf, gene family (previously named the octamer-binding protein, Oct, gene family) using an interspecific backcross of [(C57BL/6J x Mus spretus)F1 x C57BL/6J] mice and the BXH recombinant inbred strains.
L D, Siracusa +6 more
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Performance Evaluation of OTFS and OFDM for 6G Waveform [PDF]
ITM Web of Conferences, 2022 Orthogonal time frequency space (OTFS) modulation is a coming technique addressing the challenges of 5G and 6G. It’s appeared to bring about outstanding error performance in delay – Doppler (DeDo) channels.
Mohammadi Abderrahim +5 more
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CNN-Based Channel Estimation Method for OTFS System in Satellite-Ground Scenario
天地一体化信息网络, 2022 Orthogonal time frequency space (OTFS) is fully applied in high Doppler communication scenarios due to its good Doppler frequency bias and time delay adaptability.The channel estimation methods for OTFS systems have shortcomings such as high complexity ...
Cheng GUO, Le YU, Lidong ZHU
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A Survey on Orthogonal Time Frequency Space Modulation
IEEE Open Journal of the Communications SocietyOrthogonal time frequency space (OTFS) modulation is strongly considered as a promising solution for high-mobility communications. In contrast to conventional modulation techniques, wherein information symbols are multiplexed in a one-dimensional time or
Mahmoud Aldababsa +3 more
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Bi(OTf)3 and SiO2-Bi(OTf)3 as Effective Catalysts for the Ferrier Rearrangement# [PDF]
Molecules, 2005 Bi(OTf)3 and SiO2-Bi(OTf)3 are found to effectively catalyze the Ferrierrearrangement of tri-O-acetyl glycals with different alcohols providing an effective routeto 2,3-unsaturated O-glycosides with good anomeric selectivity and good to excellentyields after short reaction times.
J. Babu, A. Khare, Y. Vankar
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Entropy, 2023 Orthogonal time–frequency space (OTFS) modulation has been advocated as a promising waveform for achieving integrated sensing and communication (ISAC) due to its superiority in high-mobility adaptability and spectral efficiency.
Mi Zhang +6 more
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A Complex Wavelet-Based OTFS Scheme for LEO Satellite Communication
IEEE AccessThis study investigates a wavelet-aided orthogonal time-frequency space (W-OTFS) modulation system operating in low earth orbit (LEO) satellite systems. The discrete wavelet transform (DWT) underlying the complex input signals (high-order modulation) is ...
Saifur Rahman Sabuj, Han-Shin Jo
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On OTFS using the Discrete Zak Transform
2022 IEEE International Conference on Communications Workshops (ICC Workshops), 2022 In orthogonal time frequency space (OTFS) modu-lation, information-carrying symbols reside in the delay-Doppler(DD) domain. By operating in the DD domain, an appealingproperty for communication arises: time-frequency (TF) disper-sive channels encountered in high mobility environments becometime-invariant.
Franz Lampel +2 more
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