Overview of the Orthogonal Time-Frequency Space for High Mobility Communication Systems

Known as a new promising waveform modulation technique, the orthogonal time-frequency space (OTFS) technique is considered a very important waveform modulation technique that modulates data in the delay-Doppler (DD) domain. The key difference between OTFS and the traditional multiplexing techniques...

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Bibliographic Details
Published inInternational Conference on Communications, Signal Processing and their Applications (Online) pp. 1 - 6
Main Authors Eldemiry, Ahmed, Abdelsalam, Abdelazim A., Abdel-Atty, Heba M., Azouz, Ahmed, Gaafar, Abd Elhamid, Raslan, Walid
Format Conference Proceeding
LanguageEnglish
Published IEEE 27.12.2022
Subjects
Channel estimation
Complexity theory
Modulation
OFDM
OTFS
Signal processing algorithms
Time-frequency analysis
Wireless communication
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Summary:Known as a new promising waveform modulation technique, the orthogonal time-frequency space (OTFS) technique is considered a very important waveform modulation technique that modulates data in the delay-Doppler (DD) domain. The key difference between OTFS and the traditional multiplexing techniques is that it is two-dimensional modulation that converts between the time-frequency (TF) domain and delay-Doppler domain, these features enable dealing with the Doppler shift generated from high mobility objects which were ignored in the traditional modulation techniques such as orthogonal frequency division multiplexing (OFDM). The main objective of this survey is to provide an overview of this novel subject indicating its system model. Also, we review the main topics related to OTFS modulation as data detection techniques, channel estimation, MIMO, and multiuser systems. Then, the main research direction of OTFS on future wireless generation systems is given.
ISSN:2767-7702
DOI:10.1109/ICCSPA55860.2022.10019038