Security performance analysis for cell-free massive multiple-input multiple-output system with multi-antenna access points deployment in presence of active eavesdropping
This article investigates the influence of multiple-antenna deployment at access points on physical layer security under cell-free massive multiple-input multiple-output systems. To embody the concept of network multiple-input multiple-output, cell-free massive multiple-input multiple-output employs...
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| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
Wiley
2022-08-01
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| Series: | International Journal of Distributed Sensor Networks |
| Online Access: | https://doi.org/10.1177/15501329221114535 |
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| _version_ | 1850172510757191680 |
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| author | Xiaoyu Wang Yuanyuan Gao Guangna Zhang Mingxi Guo Kui Xu |
| author_facet | Xiaoyu Wang Yuanyuan Gao Guangna Zhang Mingxi Guo Kui Xu |
| author_sort | Xiaoyu Wang |
| collection | DOAJ |
| description | This article investigates the influence of multiple-antenna deployment at access points on physical layer security under cell-free massive multiple-input multiple-output systems. To embody the concept of network multiple-input multiple-output, cell-free massive multiple-input multiple-output employs a great deal of geographically distributed access points, which jointly serve multiple users in the same frequency-time resource. Assuming a malicious active eavesdropper having knowledge of instantaneous channel state information, we derive the asymptotic closed-form expression of the achievable secrecy rate, which is used to evaluate network security performance. A distributed power allocation scheme is developed based on channel fading degrees of different users. All of access points distribute a larger proportion of local transmission power to the users with better channel conditions. We verified that the security performance of the multi-antenna access points outperforms that of the single one. Compared to equal power allocation, the proposed power control algorithm can further boost the network security performance. |
| format | Article |
| id | doaj-art-d0678f77c78a4d958bc5d44f0af4b9e5 |
| institution | OA Journals |
| issn | 1550-1477 |
| language | English |
| publishDate | 2022-08-01 |
| publisher | Wiley |
| record_format | Article |
| series | International Journal of Distributed Sensor Networks |
| spelling | doaj-art-d0678f77c78a4d958bc5d44f0af4b9e52025-08-20T02:20:05ZengWileyInternational Journal of Distributed Sensor Networks1550-14772022-08-011810.1177/15501329221114535Security performance analysis for cell-free massive multiple-input multiple-output system with multi-antenna access points deployment in presence of active eavesdroppingXiaoyu WangYuanyuan GaoGuangna ZhangMingxi GuoKui XuThis article investigates the influence of multiple-antenna deployment at access points on physical layer security under cell-free massive multiple-input multiple-output systems. To embody the concept of network multiple-input multiple-output, cell-free massive multiple-input multiple-output employs a great deal of geographically distributed access points, which jointly serve multiple users in the same frequency-time resource. Assuming a malicious active eavesdropper having knowledge of instantaneous channel state information, we derive the asymptotic closed-form expression of the achievable secrecy rate, which is used to evaluate network security performance. A distributed power allocation scheme is developed based on channel fading degrees of different users. All of access points distribute a larger proportion of local transmission power to the users with better channel conditions. We verified that the security performance of the multi-antenna access points outperforms that of the single one. Compared to equal power allocation, the proposed power control algorithm can further boost the network security performance.https://doi.org/10.1177/15501329221114535 |
| spellingShingle | Xiaoyu Wang Yuanyuan Gao Guangna Zhang Mingxi Guo Kui Xu Security performance analysis for cell-free massive multiple-input multiple-output system with multi-antenna access points deployment in presence of active eavesdropping International Journal of Distributed Sensor Networks |
| title | Security performance analysis for cell-free massive multiple-input multiple-output system with multi-antenna access points deployment in presence of active eavesdropping |
| title_full | Security performance analysis for cell-free massive multiple-input multiple-output system with multi-antenna access points deployment in presence of active eavesdropping |
| title_fullStr | Security performance analysis for cell-free massive multiple-input multiple-output system with multi-antenna access points deployment in presence of active eavesdropping |
| title_full_unstemmed | Security performance analysis for cell-free massive multiple-input multiple-output system with multi-antenna access points deployment in presence of active eavesdropping |
| title_short | Security performance analysis for cell-free massive multiple-input multiple-output system with multi-antenna access points deployment in presence of active eavesdropping |
| title_sort | security performance analysis for cell free massive multiple input multiple output system with multi antenna access points deployment in presence of active eavesdropping |
| url | https://doi.org/10.1177/15501329221114535 |
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