Security Performance Analysis of Downlink Double Intelligent Reflecting Surface Non-Orthogonal Multiple Access Network for Edge Users
In this work, we study the security performance of a double intelligent reflecting surface non-orthogonal multiple access (DIRS-NOMA) wireless communication system supporting communication for a group of two NOMA users (UEs) at the edge, with the existence of an eavesdropping device (ED). We also as...
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MDPI AG
2025-02-01
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| Series: | Sensors |
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| Online Access: | https://www.mdpi.com/1424-8220/25/4/1274 |
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| author | Nguyen Thai Anh Nguyen Hoang Viet Dinh-Thuan Do Adão Silva |
| author_facet | Nguyen Thai Anh Nguyen Hoang Viet Dinh-Thuan Do Adão Silva |
| author_sort | Nguyen Thai Anh |
| collection | DOAJ |
| description | In this work, we study the security performance of a double intelligent reflecting surface non-orthogonal multiple access (DIRS-NOMA) wireless communication system supporting communication for a group of two NOMA users (UEs) at the edge, with the existence of an eavesdropping device (ED). We also assume that there is no direct connection between the BS and the UEs. From the proposed model, we compute closed-form expressions for the secrecy outage probability (SOP) and the average security rate (ASR) for each UE. After that, we discuss and analyze the system security performance according to the NOMA power allocation for each user and the number of IRS counter-emission elements. In addition, we analyze the SOP of both the considered DIRS-NOMA and conventional NOMA systems to demonstrate that DIRS-NOMA systems have much better security than conventional NOMA systems. Based on the analytical results, we develop an ASR optimization algorithm using the alternating optimization method, combining NOMA power allocation factor optimization and IRS passive beam optimization through the Lagrange double transform. The derived analytical expressions are validated through Monte Carlo simulations. |
| format | Article |
| id | doaj-art-f3393a32e83d47c19b8d55d6045df6a0 |
| institution | OA Journals |
| issn | 1424-8220 |
| language | English |
| publishDate | 2025-02-01 |
| publisher | MDPI AG |
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| series | Sensors |
| spelling | doaj-art-f3393a32e83d47c19b8d55d6045df6a02025-08-20T02:03:32ZengMDPI AGSensors1424-82202025-02-01254127410.3390/s25041274Security Performance Analysis of Downlink Double Intelligent Reflecting Surface Non-Orthogonal Multiple Access Network for Edge UsersNguyen Thai Anh0Nguyen Hoang Viet1Dinh-Thuan Do2Adão Silva3Faculty of Electronics Technology, Industrial University of Ho Chi Minh City, Ho Chi Minh City 700000, VietnamFaculty of Electronics Technology, Industrial University of Ho Chi Minh City, Ho Chi Minh City 700000, VietnamBrenton School of Engineering, University of Mount Union, Alliance, OH 44601, USAInstituto de Telecomunicações (IT), University of Aveiro, 3810-193 Aveiro, PortugalIn this work, we study the security performance of a double intelligent reflecting surface non-orthogonal multiple access (DIRS-NOMA) wireless communication system supporting communication for a group of two NOMA users (UEs) at the edge, with the existence of an eavesdropping device (ED). We also assume that there is no direct connection between the BS and the UEs. From the proposed model, we compute closed-form expressions for the secrecy outage probability (SOP) and the average security rate (ASR) for each UE. After that, we discuss and analyze the system security performance according to the NOMA power allocation for each user and the number of IRS counter-emission elements. In addition, we analyze the SOP of both the considered DIRS-NOMA and conventional NOMA systems to demonstrate that DIRS-NOMA systems have much better security than conventional NOMA systems. Based on the analytical results, we develop an ASR optimization algorithm using the alternating optimization method, combining NOMA power allocation factor optimization and IRS passive beam optimization through the Lagrange double transform. The derived analytical expressions are validated through Monte Carlo simulations.https://www.mdpi.com/1424-8220/25/4/1274intelligent reflecting surfacenon-orthogonal multiple accessphysical layer securitysecrecy outage probabilityaverage secrecy rate |
| spellingShingle | Nguyen Thai Anh Nguyen Hoang Viet Dinh-Thuan Do Adão Silva Security Performance Analysis of Downlink Double Intelligent Reflecting Surface Non-Orthogonal Multiple Access Network for Edge Users Sensors intelligent reflecting surface non-orthogonal multiple access physical layer security secrecy outage probability average secrecy rate |
| title | Security Performance Analysis of Downlink Double Intelligent Reflecting Surface Non-Orthogonal Multiple Access Network for Edge Users |
| title_full | Security Performance Analysis of Downlink Double Intelligent Reflecting Surface Non-Orthogonal Multiple Access Network for Edge Users |
| title_fullStr | Security Performance Analysis of Downlink Double Intelligent Reflecting Surface Non-Orthogonal Multiple Access Network for Edge Users |
| title_full_unstemmed | Security Performance Analysis of Downlink Double Intelligent Reflecting Surface Non-Orthogonal Multiple Access Network for Edge Users |
| title_short | Security Performance Analysis of Downlink Double Intelligent Reflecting Surface Non-Orthogonal Multiple Access Network for Edge Users |
| title_sort | security performance analysis of downlink double intelligent reflecting surface non orthogonal multiple access network for edge users |
| topic | intelligent reflecting surface non-orthogonal multiple access physical layer security secrecy outage probability average secrecy rate |
| url | https://www.mdpi.com/1424-8220/25/4/1274 |
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