OTFS Transceiver With Low-Complexity VLSI Architecture Under Multipath Fading Channel

  • Unique Paper ID: 208419
  • Volume: 13
  • Issue: 4
  • PageNo: 1595-1603
  • Abstract:
  • For high-speed vehicle communication, Orthogonal Time Frequency Space (OTFS) modulation has proven to be a reliable protocol. This innovative method uses a unique two-dimensional (2D) delay-Doppler domain waveform. In situations involving fast-moving wireless channels, OTFS exhibits better performance improvements when compared to traditional modulation techniques like orthogonal frequency division multiplexing (OFDM). The input-output relationship of the OTFS signal in the delay-time domain is first revealed in this study. Using the Minimum Mean Square Equalizer (MMSE) equalization approach, OTFS has the ability to achieve significantly lower bit error rate (BER) under a variety of situations, as demonstrated by a thorough comparison with the standard OFDM waveform. Lastly, we have used the LU decomposition technique for the first time in state-of-the-art to propose a novel and low complexity Very-large-scale integration (VLSI) architecture for the OTFS transmitter and the receiver. The computational complexity of direct implementation and LU decomposition methodologies has been compared, and the suggested architecture's resource usage, timing analysis, and functionality testing have come next.

Copyright & License

Copyright © 2026 Authors retain the copyright of this article. This article is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

BibTeX

@article{208419,
        author = {Cherukuru Chandrababu and kakani Suvarna},
        title = {OTFS Transceiver With Low-Complexity VLSI Architecture Under Multipath Fading Channel},
        journal = {International Journal of Innovative Research in Technology},
        year = {2026},
        volume = {13},
        number = {4},
        pages = {1595-1603},
        issn = {2349-6002},
        url = {https://ijirt.org/article?manuscript=208419},
        abstract = {For high-speed vehicle communication, Orthogonal Time Frequency Space (OTFS) modulation has proven to be a reliable protocol. This innovative method uses a unique two-dimensional (2D) delay-Doppler domain waveform. In situations involving fast-moving wireless channels, OTFS exhibits better performance improvements when compared to traditional modulation techniques like orthogonal frequency division multiplexing (OFDM). The input-output relationship of the OTFS signal in the delay-time domain is first revealed in this study. Using the Minimum Mean Square Equalizer (MMSE) equalization approach, OTFS has the ability to achieve significantly lower bit error rate (BER) under a variety of situations, as demonstrated by a thorough comparison with the standard OFDM waveform.
Lastly, we have used the LU decomposition technique for the first time in state-of-the-art to propose a novel and low complexity Very-large-scale integration (VLSI) architecture for the OTFS transmitter and the receiver. The computational complexity of direct implementation and LU decomposition methodologies has been compared, and the suggested architecture's resource usage, timing analysis, and functionality testing have come next.},
        keywords = {LU decomposition, OFDM, OTFS, MMSE, VLSI, and BER},
        month = {September},
        }

Cite This Article

Chandrababu, C., & Suvarna, K. (2026). OTFS Transceiver With Low-Complexity VLSI Architecture Under Multipath Fading Channel. International Journal of Innovative Research in Technology (IJIRT), 13(4), 1595–1603.

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