Orthogonal Chirp Division Multiplexing for High-Speed Terahertz Wireless Systems

Anderson  Sanches; Glecia  Pereira; Daniel Marchesi; Rafael   Nobrega; Shyqyri Haxha; Antonio  Jurado-Navas

doi:10.1109/SBFotonIOPC66433.2025.11218311

Orthogonal Chirp Division Multiplexing for High-Speed Terahertz Wireless Systems

Anderson Sanches
, Glecia Pereira
, Daniel Marchesi
, Rafael Nobrega
, Shyqyri Haxha
, Antonio Jurado-Navas

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

1 Downloads (Pure)

Abstract

6G systems are expected to operate in the THz band
to support ultra-high data rates. However, severe propagation
impairments in THz channels pose significant challenges. This
paper presents a new channel model and numerical analysis
of a THz system using orthogonal chirp division multiplexing
(OCDM). The system includes chirped waveforms at 300 GHz,
minimum mean square error (MMSE) equalization, amplitude
modulation, and three ray-tracing-derived indoor environments:
spacious hall, long corridor, and empty room. Results show
OCDM enhances resilience to multipath effects, especially for
lower-order modulations. The findings highlight OCDM with
environment-aware techniques as a robust solution for future
THz communications

Original language	English
Title of host publication	Optics and Photonics Conference (SBFoton IOPC), SBFoton International
Subtitle of host publication	2025 SBFoton International Optics and Photonics Conference (SBFoton IOPC)
Publisher	IEEE
Pages	1-3
Number of pages	3
ISBN (Electronic)	979-8-3315-9497-8
ISBN (Print)	979-8-3315-9498-5
DOIs	https://doi.org/10.1109/SBFotonIOPC66433.2025.11218311
Publication status	Published - 31 Oct 2025

Publication series

Name	2025 SBFoton International Optics and Photonics Conference (SBFoton IOPC)
Publisher	IEEE
ISSN (Print)	2837-4959
ISSN (Electronic)	2837-4967

Access to Document

10.1109/SBFotonIOPC66433.2025.11218311

Accepted ManuscriptAccepted author manuscript, 577 KBLicence: CC BY

Cite this

Sanches, A., Pereira, G., Marchesi, D., Nobrega, R., Haxha, S., & Jurado-Navas, A. (2025). Orthogonal Chirp Division Multiplexing for High-Speed Terahertz Wireless Systems. In Optics and Photonics Conference (SBFoton IOPC), SBFoton International: 2025 SBFoton International Optics and Photonics Conference (SBFoton IOPC) (pp. 1-3). (2025 SBFoton International Optics and Photonics Conference (SBFoton IOPC)). IEEE. https://doi.org/10.1109/SBFotonIOPC66433.2025.11218311

Sanches, Anderson ; Pereira, Glecia ; Marchesi, Daniel et al. / Orthogonal Chirp Division Multiplexing for High-Speed Terahertz Wireless Systems. Optics and Photonics Conference (SBFoton IOPC), SBFoton International: 2025 SBFoton International Optics and Photonics Conference (SBFoton IOPC). IEEE, 2025. pp. 1-3 (2025 SBFoton International Optics and Photonics Conference (SBFoton IOPC)).

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title = "Orthogonal Chirp Division Multiplexing for High-Speed Terahertz Wireless Systems",

abstract = "6G systems are expected to operate in the THz band to support ultra-high data rates. However, severe propagation impairments in THz channels pose significant challenges. This paper presents a new channel model and numerical analysis of a THz system using orthogonal chirp division multiplexing (OCDM). The system includes chirped waveforms at 300 GHz, minimum mean square error (MMSE) equalization, amplitude modulation, and three ray-tracing-derived indoor environments: spacious hall, long corridor, and empty room. Results show OCDM enhances resilience to multipath effects, especially for lower-order modulations. The findings highlight OCDM with environment-aware techniques as a robust solution for future THz communications",

author = "Anderson Sanches and Glecia Pereira and Daniel Marchesi and Rafael Nobrega and Shyqyri Haxha and Antonio Jurado-Navas",

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Sanches, A, Pereira, G, Marchesi, D, Nobrega, R, Haxha, S & Jurado-Navas, A 2025, Orthogonal Chirp Division Multiplexing for High-Speed Terahertz Wireless Systems. in Optics and Photonics Conference (SBFoton IOPC), SBFoton International: 2025 SBFoton International Optics and Photonics Conference (SBFoton IOPC). 2025 SBFoton International Optics and Photonics Conference (SBFoton IOPC), IEEE, pp. 1-3. https://doi.org/10.1109/SBFotonIOPC66433.2025.11218311

Orthogonal Chirp Division Multiplexing for High-Speed Terahertz Wireless Systems. / Sanches, Anderson ; Pereira, Glecia ; Marchesi, Daniel et al.
Optics and Photonics Conference (SBFoton IOPC), SBFoton International: 2025 SBFoton International Optics and Photonics Conference (SBFoton IOPC). IEEE, 2025. p. 1-3 (2025 SBFoton International Optics and Photonics Conference (SBFoton IOPC)).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

TY - GEN

T1 - Orthogonal Chirp Division Multiplexing for High-Speed Terahertz Wireless Systems

AU - Sanches, Anderson

AU - Pereira, Glecia

AU - Marchesi, Daniel

AU - Nobrega, Rafael

AU - Haxha, Shyqyri

AU - Jurado-Navas, Antonio

PY - 2025/10/31

Y1 - 2025/10/31

N2 - 6G systems are expected to operate in the THz band to support ultra-high data rates. However, severe propagation impairments in THz channels pose significant challenges. This paper presents a new channel model and numerical analysis of a THz system using orthogonal chirp division multiplexing (OCDM). The system includes chirped waveforms at 300 GHz, minimum mean square error (MMSE) equalization, amplitude modulation, and three ray-tracing-derived indoor environments: spacious hall, long corridor, and empty room. Results show OCDM enhances resilience to multipath effects, especially for lower-order modulations. The findings highlight OCDM with environment-aware techniques as a robust solution for future THz communications

AB - 6G systems are expected to operate in the THz band to support ultra-high data rates. However, severe propagation impairments in THz channels pose significant challenges. This paper presents a new channel model and numerical analysis of a THz system using orthogonal chirp division multiplexing (OCDM). The system includes chirped waveforms at 300 GHz, minimum mean square error (MMSE) equalization, amplitude modulation, and three ray-tracing-derived indoor environments: spacious hall, long corridor, and empty room. Results show OCDM enhances resilience to multipath effects, especially for lower-order modulations. The findings highlight OCDM with environment-aware techniques as a robust solution for future THz communications

U2 - 10.1109/SBFotonIOPC66433.2025.11218311

DO - 10.1109/SBFotonIOPC66433.2025.11218311

M3 - Conference contribution

SN - 979-8-3315-9498-5

T3 - 2025 SBFoton International Optics and Photonics Conference (SBFoton IOPC)

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BT - Optics and Photonics Conference (SBFoton IOPC), SBFoton International

PB - IEEE

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Sanches A, Pereira G, Marchesi D, Nobrega R, Haxha S, Jurado-Navas A. Orthogonal Chirp Division Multiplexing for High-Speed Terahertz Wireless Systems. In Optics and Photonics Conference (SBFoton IOPC), SBFoton International: 2025 SBFoton International Optics and Photonics Conference (SBFoton IOPC). IEEE. 2025. p. 1-3. (2025 SBFoton International Optics and Photonics Conference (SBFoton IOPC)). doi: 10.1109/SBFotonIOPC66433.2025.11218311