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Research status of channel estimation and signal detection techniques for orthogonal time frequency space modulation [PDF]
Tongxin xuebaoOrthogonal 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
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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
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Integrated Sensing and Communication Using Random Padded OTFS with Reduced Interferences [PDF]
SensorsThe orthogonal time frequency space (OTFS) is a modulation designed to transmit data in high Doppler channels where the usage of the orthogonal frequency division multiplexing (OFDM) is challenging. The random padded OTFS (RP-OTFS) modulation, introduced
Pavel Karpovich, Tomasz P. Zielinski
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IEEE Photonics Journal, 2020 Orthogonal time-frequency-space (OTFS) modulation is a promising two-dimensional (2D) signal technique to tackle high mobility time-varying wireless channels.
Jie Zhong +3 more
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Performance Evaluation of OTFS-NOMA Scheme for High Mobility Users
Sakarya University Journal of Computer and Information Sciences, 2023 Orthogonal Time Frequency Space (OTFS) is a promising approach which is widely employed in sixth generation (6G) wireless network systems. Because of its superior performance in high-mobility environments, OTFS modulation has received a lot of attention ...
Arif Başgümüş +2 more
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OTFS technology research and prospect
Dianxin kexue, 2021 Recently, a new multi-carrier modulation technique termed orthogonal time frequency space (OTFS) was proposed.In the OTFS modulation, the data symbols are modulated at the delay-Doppler plane and spread on all the time-frequency resource elements with ...
Hang LONG +4 more
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OTFS - Orthogonal Time Frequency Space
CoRR, 2016 In this paper we introduce a new 2D modulation technique called OTFS (Orthogonal Time Frequency & Space) that transforms information carried in the Delay-Doppler coordinate system to the familiar time-frequency domain utilized by traditional modulation schemes such as OFDM, CDMA and TDMA. OTFS converts the fading, time-varying wireless channel into
Anton Monk +3 more
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IEEE Photonics Journal, 2023 A doppler delay-time frequency (DD-TF) cross-domain high-security transmission scheme based on orthogonal time frequency space (OTFS) is proposed, which is compatible with high-speed and large-capacity optical transmission systems.
Zhiruo Guo +9 more
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Multiple-Mode Orthogonal Time Frequency Space with Index Modulation
, 2022 Recently, orthogonal time frequency space modulation with index modulation (OTFS-IM) has been proposed to improve the bit-error-rate (BER) performance of the OTFS system.
Weikai Xu, Lin Wang, Huarong Ren
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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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