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Secure hybrid power-frequency multiple access in satellite terrestrial communication systems: a performance study.

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Title: Secure hybrid power-frequency multiple access in satellite terrestrial communication systems: a performance study.
Authors: Tran, Huu Q.1 tranquyhuu@iuh.edu.vn, Pham, Viet-Thanh1
Source: Telkomnika. Feb2026, Vol. 24 Issue 1, p14-21. 8p.
Subjects: Frequency division multiple access, Eavesdropping, Multiple access protocols (Computer network protocols), Telecommunication satellites
Abstract: This paper investigates a secure hybrid power--frequency multiple access (PFMA) framework for satellite--terrestrial communications. By integrating power- and frequency-domain multiplexing, PFMA achieves approximately 4 dB lower transmit signal-to-noise ratio (SNR) than non-orthogonal multiple access (NOMA) for the same connection outage probability (COP) at SNR > 0 dB, and it reduces the COP by up to 30% at low-to-medium SNRs. It further decreases the intercept probability (IP) by 20-25% at PS = 10 dBm. Closed-form COP and IP expressions are derived under shadowed-Rician fading with both internal and external eavesdroppers and validated via Monte Carlo simulations. Parameter analysis indicates that PFMA's SNR gain can either extend coverage by 60% or save 37% energy, providing design guidelines for 6G, satellite IoT, and emergency communication systems. The single-cell assumption points to future work on multi-cell and mobility scenarios. [ABSTRACT FROM AUTHOR]
Copyright of Telkomnika is the property of Department of Electrical Engineering, Ahmad Dahlan University and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
Database: Engineering Source
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DbLabel: Engineering Source
An: 192065401
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  Data: Secure hybrid power-frequency multiple access in satellite terrestrial communication systems: a performance study.
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  Data: <searchLink fieldCode="AR" term="%22Tran%2C+Huu+Q%2E%22">Tran, Huu Q.</searchLink><relatesTo>1</relatesTo><i> tranquyhuu@iuh.edu.vn</i><br /><searchLink fieldCode="AR" term="%22Pham%2C+Viet-Thanh%22">Pham, Viet-Thanh</searchLink><relatesTo>1</relatesTo>
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  Data: <searchLink fieldCode="JN" term="%22Telkomnika%22">Telkomnika</searchLink>. Feb2026, Vol. 24 Issue 1, p14-21. 8p.
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  Data: <searchLink fieldCode="DE" term="%22Frequency+division+multiple+access%22">Frequency division multiple access</searchLink><br /><searchLink fieldCode="DE" term="%22Eavesdropping%22">Eavesdropping</searchLink><br /><searchLink fieldCode="DE" term="%22Multiple+access+protocols+%28Computer+network+protocols%29%22">Multiple access protocols (Computer network protocols)</searchLink><br /><searchLink fieldCode="DE" term="%22Telecommunication+satellites%22">Telecommunication satellites</searchLink>
– Name: Abstract
  Label: Abstract
  Group: Ab
  Data: This paper investigates a secure hybrid power--frequency multiple access (PFMA) framework for satellite--terrestrial communications. By integrating power- and frequency-domain multiplexing, PFMA achieves approximately 4 dB lower transmit signal-to-noise ratio (SNR) than non-orthogonal multiple access (NOMA) for the same connection outage probability (COP) at SNR > 0 dB, and it reduces the COP by up to 30% at low-to-medium SNRs. It further decreases the intercept probability (IP) by 20-25% at PS = 10 dBm. Closed-form COP and IP expressions are derived under shadowed-Rician fading with both internal and external eavesdroppers and validated via Monte Carlo simulations. Parameter analysis indicates that PFMA's SNR gain can either extend coverage by 60% or save 37% energy, providing design guidelines for 6G, satellite IoT, and emergency communication systems. The single-cell assumption points to future work on multi-cell and mobility scenarios. [ABSTRACT FROM AUTHOR]
– Name: AbstractSuppliedCopyright
  Label:
  Group: Ab
  Data: <i>Copyright of Telkomnika is the property of Department of Electrical Engineering, Ahmad Dahlan University and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.)
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      – Type: doi
        Value: 10.12928/TELKOMNIKA.v24i1.26892
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      – Code: eng
        Text: English
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        PageCount: 8
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      – SubjectFull: Frequency division multiple access
        Type: general
      – SubjectFull: Eavesdropping
        Type: general
      – SubjectFull: Multiple access protocols (Computer network protocols)
        Type: general
      – SubjectFull: Telecommunication satellites
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      – TitleFull: Secure hybrid power-frequency multiple access in satellite terrestrial communication systems: a performance study.
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              Text: Feb2026
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              Y: 2026
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