TY - GEN
T1 - Uplink Secrecy Analysis for UAV-enabled PD-NOMA-based Underlay Spectrum Sharing Networks
AU - Khalid Hasan, Moh
AU - Yu, Shucheng
AU - Song, Min
N1 - Publisher Copyright:
© 2023 IEEE.
PY - 2023
Y1 - 2023
N2 - Effective sharing of spectrum resources is essential in forthcoming sixth-generation (6G) wireless networks to deploy massive Internet-of-Things (IoT) terminals. Unmanned aerial vehicles (UAVs) can significantly support IoT devices, especially in remote or disaster areas. Recently, power-domain non-orthogonal multiple access (PD-NOMA) utilized with underlay spectrum sharing has been proposed as a promising solution to enhance spectral efficiency. However, in a UAV-enabled multi-user spectrum sharing network, the risk of wiretapping in uplink signaling should be studied to ensure secured communications. This article investigates the uplink secrecy performance of a UAV-supported PD-NOMA-based underlay spectrum sharing (PDN-USS) network. The system is principally comprised of a secondary network with a pair of IoT terminals and a UAV receiver, where imperfect successive interference cancellation is carried out to decode data. Considering a transmission power constraint imposed at the secondary transmitters, we derive the closed-form expressions of the secrecy outage probability (SOP) for both IoT terminals. All the analytical expressions are obtained considering all the links undergo Nakagami-m fading. The simulation results validate the accuracy of the analysis and confirm that the PDN-USS system outperforms the benchmark OMA-based USS scheme in terms of the SOP. The results also provide valuable insights into the impact of the interference temperature and residual interference on the uplink SOP.
AB - Effective sharing of spectrum resources is essential in forthcoming sixth-generation (6G) wireless networks to deploy massive Internet-of-Things (IoT) terminals. Unmanned aerial vehicles (UAVs) can significantly support IoT devices, especially in remote or disaster areas. Recently, power-domain non-orthogonal multiple access (PD-NOMA) utilized with underlay spectrum sharing has been proposed as a promising solution to enhance spectral efficiency. However, in a UAV-enabled multi-user spectrum sharing network, the risk of wiretapping in uplink signaling should be studied to ensure secured communications. This article investigates the uplink secrecy performance of a UAV-supported PD-NOMA-based underlay spectrum sharing (PDN-USS) network. The system is principally comprised of a secondary network with a pair of IoT terminals and a UAV receiver, where imperfect successive interference cancellation is carried out to decode data. Considering a transmission power constraint imposed at the secondary transmitters, we derive the closed-form expressions of the secrecy outage probability (SOP) for both IoT terminals. All the analytical expressions are obtained considering all the links undergo Nakagami-m fading. The simulation results validate the accuracy of the analysis and confirm that the PDN-USS system outperforms the benchmark OMA-based USS scheme in terms of the SOP. The results also provide valuable insights into the impact of the interference temperature and residual interference on the uplink SOP.
KW - Secrecy outage probability (SOP)
KW - cognitive radio network (CRN)
KW - non-orthogonal multiple access (NOMA)
KW - underlay spectrum sharing (USS)
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U2 - 10.1109/WCNC55385.2023.10118780
DO - 10.1109/WCNC55385.2023.10118780
M3 - Conference contribution
AN - SCOPUS:85159790120
T3 - IEEE Wireless Communications and Networking Conference, WCNC
BT - 2023 IEEE Wireless Communications and Networking Conference, WCNC 2023 - Proceedings
T2 - 2023 IEEE Wireless Communications and Networking Conference, WCNC 2023
Y2 - 26 March 2023 through 29 March 2023
ER -