The MIMO-OTFS Technique in the Next 6G Communications

Authors

  • Ali J. Ramadhan University of Alkafeel, Iraq
  • Ali Taei Zadeh University of Qom, Iran

Keywords:

OTFS, 6G, MIMO, Superimposed Sequence Pilot, Delay-Doppler, High Mobility

Abstract

The orthogonal time-frequency space (OTFS) technique is a promising method of waveform modulation that encodes data in the delay-doppler (DD) domain. OTFS distinguishes itself from conventional multiplexing methods by employing two-dimensional modulation to alternate between the time-frequency (TF) domain and the delay-Doppler domain. This feature enables the management of Doppler shifts induced by high-speed objects, which is not possible with conventional modulation schemes such as orthogonal frequency division multiplexing (OFDM). The main objective of this work is to provide a concise and comprehensive introduction of this emerging subject, emphasizing its system concept. In addition, we analyze crucial elements of OTFS modulation, including techniques for data detection, channel estimation, MIMO, and multiuser systems.

Author Biographies

Ali J. Ramadhan, University of Alkafeel, Iraq

Department of Computer Engineering, University of Alkafeel, Najaf, Iraq

Ali Taei Zadeh, University of Qom, Iran

Department of Computer and IT Engineering, University of Qom, Qom, Iran

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Published

2024-06-26

How to Cite

Ali J. Ramadhan, & Ali Taei Zadeh. (2024). The MIMO-OTFS Technique in the Next 6G Communications. Engineering Access, 10(2), 166–180. Retrieved from https://ph02.tci-thaijo.org/index.php/mijet/article/view/252983

Issue

Vol. 10 No. 2 (2024): July-December

Section

Review Paper

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