Robust Secure Design for RIS-Aided NOMA Network Against Internal Near-End Eavesdropping

The reconfigurable intelligent surface (RIS) aided non-orthogonal multiple access (NOMA) network is applied to improve spectral efficiency and energy efficiency of wireless systems. Due to the incorporation of NOMA, RIS-aided NOMA system suffers from physical layer security (PLS) problem when an int...

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Main Authors: Chengjun Jiang, Chensi Zhang, Peili Hao, Zhe Zhang, Jianhua Ge
Format: Article
Language:English
Published: IEEE 2021-01-01
Series:IEEE Access
Subjects:
Online Access:https://ieeexplore.ieee.org/document/9576691/
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author Chengjun Jiang
Chensi Zhang
Peili Hao
Zhe Zhang
Jianhua Ge
author_facet Chengjun Jiang
Chensi Zhang
Peili Hao
Zhe Zhang
Jianhua Ge
author_sort Chengjun Jiang
collection DOAJ
description The reconfigurable intelligent surface (RIS) aided non-orthogonal multiple access (NOMA) network is applied to improve spectral efficiency and energy efficiency of wireless systems. Due to the incorporation of NOMA, RIS-aided NOMA system suffers from physical layer security (PLS) problem when an internal near user (NU) is the eavesdropper. In this case, it is difficult to always guarantee positive secrecy rate. Therefore, a scheme of artificial noise (AN) cooperative jamming and beamforming design is proposed against internal eavesdropper for RIS-aided NOMA in this paper. It is proved theoretically that the positive secrecy rate can be guaranteed if providing sufficient power. In addition, the power allocation of base station is further studied to minimize the total power consumption under the constraints of data rate and secrecy rate, and the closed-form solutions are achieved. Simulation results show that the performance of the proposed scheme is superior to the existing solutions.
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spelling doaj.art-ee956cdecffc4449a7c4d680adbe0b552022-12-21T20:00:09ZengIEEEIEEE Access2169-35362021-01-01914210514211310.1109/ACCESS.2021.31207259576691Robust Secure Design for RIS-Aided NOMA Network Against Internal Near-End EavesdroppingChengjun Jiang0https://orcid.org/0000-0001-8947-3717Chensi Zhang1https://orcid.org/0000-0002-8427-5671Peili Hao2https://orcid.org/0000-0003-1543-0604Zhe Zhang3https://orcid.org/0000-0003-2903-3191Jianhua Ge4https://orcid.org/0000-0003-4565-6188State Key Laboratory of Integrated Service Networks, Xidian University, Xi’an, ChinaState Key Laboratory of Integrated Service Networks, Xidian University, Xi’an, ChinaState Key Laboratory of Integrated Service Networks, Xidian University, Xi’an, ChinaState Key Laboratory of Integrated Service Networks, Xidian University, Xi’an, ChinaState Key Laboratory of Integrated Service Networks, Xidian University, Xi’an, ChinaThe reconfigurable intelligent surface (RIS) aided non-orthogonal multiple access (NOMA) network is applied to improve spectral efficiency and energy efficiency of wireless systems. Due to the incorporation of NOMA, RIS-aided NOMA system suffers from physical layer security (PLS) problem when an internal near user (NU) is the eavesdropper. In this case, it is difficult to always guarantee positive secrecy rate. Therefore, a scheme of artificial noise (AN) cooperative jamming and beamforming design is proposed against internal eavesdropper for RIS-aided NOMA in this paper. It is proved theoretically that the positive secrecy rate can be guaranteed if providing sufficient power. In addition, the power allocation of base station is further studied to minimize the total power consumption under the constraints of data rate and secrecy rate, and the closed-form solutions are achieved. Simulation results show that the performance of the proposed scheme is superior to the existing solutions.https://ieeexplore.ieee.org/document/9576691/Reconfigurable intelligent surface (RIS)non-orthogonal multiple access (NOMA)artificial noise (AN)physical layer security (PLS)power allocation
spellingShingle Chengjun Jiang
Chensi Zhang
Peili Hao
Zhe Zhang
Jianhua Ge
Robust Secure Design for RIS-Aided NOMA Network Against Internal Near-End Eavesdropping
IEEE Access
Reconfigurable intelligent surface (RIS)
non-orthogonal multiple access (NOMA)
artificial noise (AN)
physical layer security (PLS)
power allocation
title Robust Secure Design for RIS-Aided NOMA Network Against Internal Near-End Eavesdropping
title_full Robust Secure Design for RIS-Aided NOMA Network Against Internal Near-End Eavesdropping
title_fullStr Robust Secure Design for RIS-Aided NOMA Network Against Internal Near-End Eavesdropping
title_full_unstemmed Robust Secure Design for RIS-Aided NOMA Network Against Internal Near-End Eavesdropping
title_short Robust Secure Design for RIS-Aided NOMA Network Against Internal Near-End Eavesdropping
title_sort robust secure design for ris aided noma network against internal near end eavesdropping
topic Reconfigurable intelligent surface (RIS)
non-orthogonal multiple access (NOMA)
artificial noise (AN)
physical layer security (PLS)
power allocation
url https://ieeexplore.ieee.org/document/9576691/
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AT peilihao robustsecuredesignforrisaidednomanetworkagainstinternalnearendeavesdropping
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