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Effects of Residual Hardware Impairments on Secure NOMA-Based Cooperative Systems

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Effects of Residual Hardware Impairments on Secure NOMA-Based Cooperative Systems. / Li, Meiling; Selim, Bassant; Muhaidat, Sami; Sofotasios, Paschalis C.; Dianati, Mehrdad; Yoo, Paul D.; Liang, Jie; Wang, Anhong.

In: IEEE Access, 06.11.2019.

Research output: Contribution to journalArticleScientificpeer-review

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Li, Meiling ; Selim, Bassant ; Muhaidat, Sami ; Sofotasios, Paschalis C. ; Dianati, Mehrdad ; Yoo, Paul D. ; Liang, Jie ; Wang, Anhong. / Effects of Residual Hardware Impairments on Secure NOMA-Based Cooperative Systems. In: IEEE Access. 2019.

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@article{f3b89351652d47cead851b0da5405e2b,
title = "Effects of Residual Hardware Impairments on Secure NOMA-Based Cooperative Systems",
abstract = "Non-orthogonal multiple access (NOMA) has been proposed as a promising technology that is capable of improving the spectral efficiency of fifth-generation wireless networks and beyond. However, in practical communication scenarios, transceiver architectures inevitably suffer from radio frequency (RF) front-end related impairments that cause non-negligible performance degradation. This issue can be addressed by analog and digital signal processing algorithms, however, inevitable aspects of this approach such as time-varying hardware characteristics and imperfect compensation schemes result to detrimental residual distortions. In the present contribution we investigate the physical layer security of NOMA-based amplify-and-forward relay systems under such realistically incurred residual hardware impairment (RHI) effects. Exact and asymptotic analytic expressions for the corresponding outage probability (OP) and intercept probability (IP) of the considered setup over multipath fading channels are derived and corroborated by respective simulation results. Based on this, it is shown that RHI affects both the legitimate users and eavesdroppers by increasing the OP and decreasing the IP. For a fixed OP, RHI generally increases the corresponding IP, thereby reducing the secure performance of the system. Further interesting insights are provided, verifying the importance of the offered results for the effective design and deployment of secure cooperative communication systems.",
keywords = "NOMA, Relays, Hardware, Power system reliability, Probability, Radio frequency, Fading channels, Intercept probability, non-orthogonal multiple access, outage probability, physical layer security, residual hardware impairments",
author = "Meiling Li and Bassant Selim and Sami Muhaidat and Sofotasios, {Paschalis C.} and Mehrdad Dianati and Yoo, {Paul D.} and Jie Liang and Anhong Wang",
year = "2019",
month = "11",
day = "6",
doi = "10.1109/ACCESS.2019.2951940",
language = "English",
journal = "IEEE Access",
issn = "2169-3536",
publisher = "Institute of Electrical and Electronics Engineers",

}

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TY - JOUR

T1 - Effects of Residual Hardware Impairments on Secure NOMA-Based Cooperative Systems

AU - Li, Meiling

AU - Selim, Bassant

AU - Muhaidat, Sami

AU - Sofotasios, Paschalis C.

AU - Dianati, Mehrdad

AU - Yoo, Paul D.

AU - Liang, Jie

AU - Wang, Anhong

PY - 2019/11/6

Y1 - 2019/11/6

N2 - Non-orthogonal multiple access (NOMA) has been proposed as a promising technology that is capable of improving the spectral efficiency of fifth-generation wireless networks and beyond. However, in practical communication scenarios, transceiver architectures inevitably suffer from radio frequency (RF) front-end related impairments that cause non-negligible performance degradation. This issue can be addressed by analog and digital signal processing algorithms, however, inevitable aspects of this approach such as time-varying hardware characteristics and imperfect compensation schemes result to detrimental residual distortions. In the present contribution we investigate the physical layer security of NOMA-based amplify-and-forward relay systems under such realistically incurred residual hardware impairment (RHI) effects. Exact and asymptotic analytic expressions for the corresponding outage probability (OP) and intercept probability (IP) of the considered setup over multipath fading channels are derived and corroborated by respective simulation results. Based on this, it is shown that RHI affects both the legitimate users and eavesdroppers by increasing the OP and decreasing the IP. For a fixed OP, RHI generally increases the corresponding IP, thereby reducing the secure performance of the system. Further interesting insights are provided, verifying the importance of the offered results for the effective design and deployment of secure cooperative communication systems.

AB - Non-orthogonal multiple access (NOMA) has been proposed as a promising technology that is capable of improving the spectral efficiency of fifth-generation wireless networks and beyond. However, in practical communication scenarios, transceiver architectures inevitably suffer from radio frequency (RF) front-end related impairments that cause non-negligible performance degradation. This issue can be addressed by analog and digital signal processing algorithms, however, inevitable aspects of this approach such as time-varying hardware characteristics and imperfect compensation schemes result to detrimental residual distortions. In the present contribution we investigate the physical layer security of NOMA-based amplify-and-forward relay systems under such realistically incurred residual hardware impairment (RHI) effects. Exact and asymptotic analytic expressions for the corresponding outage probability (OP) and intercept probability (IP) of the considered setup over multipath fading channels are derived and corroborated by respective simulation results. Based on this, it is shown that RHI affects both the legitimate users and eavesdroppers by increasing the OP and decreasing the IP. For a fixed OP, RHI generally increases the corresponding IP, thereby reducing the secure performance of the system. Further interesting insights are provided, verifying the importance of the offered results for the effective design and deployment of secure cooperative communication systems.

KW - NOMA

KW - Relays

KW - Hardware

KW - Power system reliability

KW - Probability

KW - Radio frequency

KW - Fading channels

KW - Intercept probability

KW - non-orthogonal multiple access

KW - outage probability

KW - physical layer security

KW - residual hardware impairments

U2 - 10.1109/ACCESS.2019.2951940

DO - 10.1109/ACCESS.2019.2951940

M3 - Article

JO - IEEE Access

JF - IEEE Access

SN - 2169-3536

ER -