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Simulation design for Ro-FSO communications system by digital modulation schemes

  • Tahani J. Mohammed and Mazin Ali A. Ali EMAIL logo
Published/Copyright: May 20, 2024
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Abstract

The Ro-FSO system was designed using Opti System software (version 20), and its efficiency is evaluated in this study using two distinct digital modulators (PSK and DPSK). The proposed system consists of four transmission channels, each with its own wavelength (193.1, 193.2, 193.3, and 193.4 THz). The system was utilized to transmit data at three different rates (10, 20, and 40 Gbit/s) under four different levels of dust attenuation. Because of the large quantity of data retrieved, only results from two specific wavelengths (193.1 and 193.4 THz) were disclosed, as they exhibited the highest Q-factor and lowest bit error rate (BER). The study observed that the (DPSK) modulator surpassed the (PSK) modulator in multiple attenuation scenarios and had superior performance when transmitting data at speeds of 10 and 40 Gb/s. The wavelength of 193.4 THz performed optimally with both modulators in terms of wavelengths.


Corresponding author: Mazin Ali A. Ali, College of Science, Physics Department, Mustansiriyah University, Baghdad, Iraq, E-mail:

Acknowledgments

The authors would like to thank Mustansiriyah University/College of Science for supporting this work in the physics department labs.

  1. Research ethics: Not applicable.

  2. Author contributions: All the authors have accepted responsibility for the entire content of this submitted manuscript and approved submission.

  3. Competing interests: The authors declare that they have no competing interests.

  4. Research funding: None declared.

  5. Data availability: The data used and/or analyzed during the current study are available from the corresponding author on reasonable request.

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Received: 2024-03-04
Accepted: 2024-05-06
Published Online: 2024-05-20
Published in Print: 2025-07-28

© 2024 Walter de Gruyter GmbH, Berlin/Boston

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