The performance of MIMO non-uniform orthogonal time-frequency space (NU-OTFS) radar with a high number of transmitters and limited spectral and temporal availability is investigated.
Correas-Serrano, Aitor +3 more
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Sparse Delay Doppler Estimation for Zak-OTFS Enabled ISAC System [PDF]
This article introduces a compressive sensing technique for parameter estimation in integrated sensing and communication (ISAC) systems using Zak-orthogonal time frequency space (OTFS) modulation, which is suitable for high-Doppler environments over ...
Juntti, Markku +2 more
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Performance Analysis of OTFS Framework Over Wideband Time-Varying Channels
IEEE Open Journal of the Communications SocietyOrthogonal Time Frequency Space (OTFS) modulation has garnered significant attention for its robustness in high-mobility communication scenarios. Existing research predominantly focuses on narrowband time-varying channels, where Doppler effects manifest ...
Ziqiang Gao +8 more
doaj +1 more source
OTFS: A Potential Waveform for Space–Air–Ground Integrated Networks in 6G and Beyond
Telecom6G 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
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Outage analysis of OTFS system over time-varying and block time-varying Rician fading channels
Results in EngineeringOrthogonal 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
On Orthogonal Time Frequency Space Modulation for Wireless Communications
, 2020 Future wireless communication systems are envisioned to support diverse requirements that include high mobility application scenarios such as high-speed trains, and vehicle-to-vehicle and vehicle-toinfrastructure communications.
Surabhi, G D
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Symbol interferometry and companding transform for PAPR reduction of OTFS signal
ETRI JournalThis paper presents methods for reducing the peak-to-average power ratio (PAPR) of the orthogonal time frequency space (OTFS) signal. These methods mainly consist of two operations: symbol interferometry (SI) and either μ-law or A-law companding.
Aare Gopal +2 more
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PAPR analysis in OTFS using the centre phase sequence matrix based PTS method
Results in OpticsOrthogonal time–frequency space (OTFS) is a multicarrier modulation technique for high-speed data transfer in wireless communications. In an OTFS system, many subcarriers are used to send the modulated symbols. This makes OTFS signals have a high peak-to-
Arun Kumar +3 more
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Low-Overhead OTFS Transmission With Frequency or Time Domain Channel Estimation
Existing channel estimation techniques for orthogonal time frequency space (OTFS) transmission are mostly based on the pilots embedded in the two-dimensional delay-Doppler domain, which significantly increases the signaling overhead. In this paper, three
Huang, X, Zhang, H, Zhang, JA
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Enhanced index modulation aided orthogonal time frequency space with variable active grids and multiple constellations [PDF]
Present orthogonal time frequency space modulation with index modulation (OTFS-IM) techniques activate a given number of grids in the delay-Doppler (DD) domain and employ fixed constellation as changing them would result in ambiguous detection. Motivated
Hai, H +4 more
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