Large-Scale Multicast Group Secure Transmission Scheme Based on Multi-Carrier FDA
Aiming at the problem that the traditional physical layer technology cannot realize secure transmission due to the large number of users and wide dispersion in the multicast system, a layered transmission method is proposed, and a scheme for the secure transmission of the multicast group physical la...
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
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MDPI AG
2023-11-01
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| Series: | Sensors |
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| Online Access: | https://www.mdpi.com/1424-8220/23/23/9358 |
| _version_ | 1797399552025690112 |
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| author | Dan Wu Yuqi Fei Jianbang Gao Fei Wang Guowang Gao |
| author_facet | Dan Wu Yuqi Fei Jianbang Gao Fei Wang Guowang Gao |
| author_sort | Dan Wu |
| collection | DOAJ |
| description | Aiming at the problem that the traditional physical layer technology cannot realize secure transmission due to the large number of users and wide dispersion in the multicast system, a layered transmission method is proposed, and a scheme for the secure transmission of the multicast group physical layer is designed. Firstly, the hierarchical transmission system model is established. Then, the array weighted vector of each layer is optimized according to the design criterion of maximizing the artificial noise interference power. At the same time, in the case where the number of users in a single multicast group is greater than the number of transmitting antennas, a multicast grouping strategy is introduced, and the singular value decomposition and Lagrange multiplier algorithms are utilized to obtain the optimal solution. Simulation results show that the proposed method can realize the secure communication of users with different distances in the same direction and can distinguish the multicast users with the same direction angle and different distances under the premise of mutual non-interference, thus realizing the secure communication of large-scale multicast users. |
| first_indexed | 2024-03-09T01:42:49Z |
| format | Article |
| id | doaj.art-2dbd7d11278845e480d65e094653aa6d |
| institution | Directory Open Access Journal |
| issn | 1424-8220 |
| language | English |
| last_indexed | 2024-03-09T01:42:49Z |
| publishDate | 2023-11-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Sensors |
| spelling | doaj.art-2dbd7d11278845e480d65e094653aa6d2023-12-08T15:25:38ZengMDPI AGSensors1424-82202023-11-012323935810.3390/s23239358Large-Scale Multicast Group Secure Transmission Scheme Based on Multi-Carrier FDADan Wu0Yuqi Fei1Jianbang Gao2Fei Wang3Guowang Gao4School of Electronic Engineering, Xi’an Shiyou University, Xi’an 710065, ChinaSchool of Electronic Engineering, Xi’an Shiyou University, Xi’an 710065, ChinaSchool of Electronic Engineering, Xi’an Shiyou University, Xi’an 710065, ChinaSchool of Electronic Engineering, Xi’an Shiyou University, Xi’an 710065, ChinaSchool of Electronic Engineering, Xi’an Shiyou University, Xi’an 710065, ChinaAiming at the problem that the traditional physical layer technology cannot realize secure transmission due to the large number of users and wide dispersion in the multicast system, a layered transmission method is proposed, and a scheme for the secure transmission of the multicast group physical layer is designed. Firstly, the hierarchical transmission system model is established. Then, the array weighted vector of each layer is optimized according to the design criterion of maximizing the artificial noise interference power. At the same time, in the case where the number of users in a single multicast group is greater than the number of transmitting antennas, a multicast grouping strategy is introduced, and the singular value decomposition and Lagrange multiplier algorithms are utilized to obtain the optimal solution. Simulation results show that the proposed method can realize the secure communication of users with different distances in the same direction and can distinguish the multicast users with the same direction angle and different distances under the premise of mutual non-interference, thus realizing the secure communication of large-scale multicast users.https://www.mdpi.com/1424-8220/23/23/9358physical layer securitylarge-scale multicast grouplayered transmissionartificial noise |
| spellingShingle | Dan Wu Yuqi Fei Jianbang Gao Fei Wang Guowang Gao Large-Scale Multicast Group Secure Transmission Scheme Based on Multi-Carrier FDA Sensors physical layer security large-scale multicast group layered transmission artificial noise |
| title | Large-Scale Multicast Group Secure Transmission Scheme Based on Multi-Carrier FDA |
| title_full | Large-Scale Multicast Group Secure Transmission Scheme Based on Multi-Carrier FDA |
| title_fullStr | Large-Scale Multicast Group Secure Transmission Scheme Based on Multi-Carrier FDA |
| title_full_unstemmed | Large-Scale Multicast Group Secure Transmission Scheme Based on Multi-Carrier FDA |
| title_short | Large-Scale Multicast Group Secure Transmission Scheme Based on Multi-Carrier FDA |
| title_sort | large scale multicast group secure transmission scheme based on multi carrier fda |
| topic | physical layer security large-scale multicast group layered transmission artificial noise |
| url | https://www.mdpi.com/1424-8220/23/23/9358 |
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