Orthogonal Time Frequency Space Modulation Based on the Discrete Zak Transform [PDF]
Entropy, 2022 In orthogonal time frequency space (OTFS) modulation, information-carrying symbols reside in the delay-Doppler (DD) domain. By operating in the DD domain, an appealing property for communication arises: time-frequency (TF) dispersive channels encountered
Franz Lampel +3 more
doaj +4 more sources
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
doaj +4 more sources
Underlying Security Transmission Design for Orthogonal Time Frequency Space (OTFS) Modulation [PDF]
Sensors, 2022 With the aim of ensuring secure transmission in high-mobility wireless scenarios, this paper proposes a 2D permutation-aided Orthogonal Time Frequency Space (OTFS) secure transmission scheme, which uses the Gosudarstvennyi Standard (GOST) algorithm to ...
Wei Liang +4 more
doaj +2 more sources
A Structured Sparse Bayesian Channel Estimation Approach for Orthogonal Time—Frequency Space Modulation [PDF]
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
doaj +2 more sources
Progressive Inter-Path Interference Cancellation Algorithm for Channel Estimation Using Orthogonal Time–Frequency Space [PDF]
SensorsFractional delay-Doppler (DD) channel estimation in orthogonal time–frequency space (OTFS) systems poses a significant challenge considering the severe effects of inter-path interference (IPI).
Mauro Marchese +3 more
doaj +2 more sources
Orthogonal Time-Frequency Space Modulation: A Promising Next-Generation Waveform [PDF]
IEEE Wireless Communications, 2021 The sixth-generation (6G) wireless networks are envisioned to provide a global coverage for the intelligent digital society of the near future, ranging from traditional terrestrial to non-terrestrial networks, where reliable communications in high-mobility scenarios at high carrier frequencies would play a vital role.
Zhiqiang Wei +2 more
exaly +5 more sources
Transmitter and Receiver Window Designs for Orthogonal Time-Frequency Space Modulation [PDF]
IEEE Transactions on Communications, 2021 30 pages, 9 figures, submitted to IEEE Transactions on ...
Zhiqiang Wei +2 more
exaly +3 more sources
Quasi-Orthogonal Space-Frequency and Space-Time-Frequency Block Codes for MIMO OFDM Channels [PDF]
IEEE Transactions on Wireless Communications, 2008 In this paper, we propose a novel class of Space-Frequency and Space-Time-Frequency block codes based on Quasi-Orthogonal designs, over a frequency selective Rayleigh fading channel. The proposed Space-Frequency code is able to achieve rate-one and full space and multipath diversity gains available in the MIMO-OFDM channel.
Fatemeh Fazel, Hamid Jafarkhani
exaly +3 more sources
Multi-Pilot Channel Estimation for Orthogonal Time–Frequency Space Systems Based on Constant-Amplitude Zero-Autocorrelation Sequences [PDF]
SensorsFuture communication systems must support high-speed mobile scenarios, while the mainstream Orthogonal Frequency Division Multiplexing (OFDM) technology faces severe inter-carrier interference in such environments.
Renjie Ju +6 more
doaj +2 more sources
Delay-Doppler Domain Time-Hopping Key Generation and Security Analysis for Orthogonal Time Frequency Space Satellite Communication Systems [PDF]
SensorsPhysical-layer key generation (PLKG) is a technique that produces symmetric encryption keys by exploiting the inherent characteristics of wireless channels.
Wei Li +4 more
doaj +2 more sources