Research on Distributed Reconfigurable Intelligent Surfaces-Assisted Security Communication under Imperfect Channel State Information

FENG Youhong; ZHANG Yane; ZHANG Yufeng; DONG Guoqing; ZHANG Ran; WANG Ye; XU Longzhu

doi:10.11999/JEIT230942

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FENG Youhong, ZHANG Yane, ZHANG Yufeng, DONG Guoqing, ZHANG Ran, WANG Ye, XU Longzhu. Research on Distributed Reconfigurable Intelligent Surfaces-Assisted Security Communication under Imperfect Channel State Information[J]. Journal of Electronics & Information Technology. doi: 10.11999/JEIT230942

Citation:

FENG Youhong, ZHANG Yane, ZHANG Yufeng, DONG Guoqing, ZHANG Ran, WANG Ye, XU Longzhu. Research on Distributed Reconfigurable Intelligent Surfaces-Assisted Security Communication under Imperfect Channel State Information[J]. Journal of Electronics & Information Technology. doi: 10.11999/JEIT230942

Citation:

FENG Youhong, ZHANG Yane, ZHANG Yufeng, DONG Guoqing, ZHANG Ran, WANG Ye, XU Longzhu. Research on Distributed Reconfigurable Intelligent Surfaces-Assisted Security Communication under Imperfect Channel State Information[J]. Journal of Electronics & Information Technology. doi: 10.11999/JEIT230942

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Research on Distributed Reconfigurable Intelligent Surfaces-Assisted Security Communication under Imperfect Channel State Information

doi: 10.11999/JEIT230942

FENG Youhong^{1, 2, 3
,
,},
ZHANG Yane¹,
ZHANG Yufeng^{1, 5},
DONG Guoqing^{1, 3},
ZHANG Ran^{1, 4},
WANG Ye¹,
XU Longzhu¹

1.
School of Physics and Electronic Information, Anhui Normal University, Wuhu 241002, China
2.
National Mobile Communications Research Laboratory, Southeast University, Nanjing 210096, China
3.
Anhui Provincial Engineering Laboratory on Information Fusion and Control of Intelligent Robot, Wuhu 241000, China
4.
The State Key Laboratory of Millimeter Waves, Southeast University, Nanjing 210096, China
5.
School of Mechanical and Electrical Engineering, Chizhou University, 247100, China

Funds: The National Natural Science Foundation of China (62071005), The open research fund of National Mobile Communications Research Laboratory, Southeast University (2023D14), The Natural Science Foundation of Anhui Province (2008085MF1811), The University Synergy Innovation Program of Anhui Province (GXXT-2023-109), The open research fund of State Key Laboratory of Millimeter Waves (K202426), Excellent Young Talents Support Program in Colleges and Universities (gxyq2022117)

Received Date: 2023-08-30
Rev Recd Date: 2024-01-25

Available Online: 2024-02-07

Abstract

Abstract

Considering the secure communication of the distributed Reconfigurable Intelligent Surfaces (RISs) under imperfect Channel State Information (CSI), a joint optimization problem of the secrecy rate maximization based on the active beamforming, Artificial Noise(AN), and RISs’ phase shifts is formulated. Then an efficient algorithm based on alternating optimization and 1-Dimensional linear search is proposed to solve the non-convex optimization problem. Simulation results demonstrate that, compared with the random phase optimization scheme and the secure transmission without AN scheme, the proposed scheme can achieve a higher secrecy rate. The superiority of the proposed scheme over the other transmission schemes becomes more prominent with the increase of the number of distribution units. The proposed scheme has better robustness than the other transmission schemes to the uncertainty of communication channel in our considered network.
- Reconfigurable Intelligent Surface(RIS),
- Physical layer security,
- Distributed,
- Robustness,
- Non-convex optimization

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References(24)

References

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