Enhancing Security in Visible Light Communication: A Tabu-Search-Based Method for Transmitter Selection
In this paper, we explore the secrecy performance of a visible light communication (VLC) system consisting of distributed light-emitting diodes (LEDs) and multiple users (UEs) randomly positioned within an indoor environment while considering the presence of an eavesdropper. To enhance the confident...
| Main Authors: | , , , , , |
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| Format: | Article |
| Language: | English |
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MDPI AG
2024-03-01
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| Series: | Sensors |
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| Online Access: | https://www.mdpi.com/1424-8220/24/6/1906 |
| _version_ | 1827305036619710464 |
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| author | Ge Shi Wei Cheng Xiang Gao Fupeng Wei Heng Zhang Qingzheng Wang |
| author_facet | Ge Shi Wei Cheng Xiang Gao Fupeng Wei Heng Zhang Qingzheng Wang |
| author_sort | Ge Shi |
| collection | DOAJ |
| description | In this paper, we explore the secrecy performance of a visible light communication (VLC) system consisting of distributed light-emitting diodes (LEDs) and multiple users (UEs) randomly positioned within an indoor environment while considering the presence of an eavesdropper. To enhance the confidentiality of the system, we formulate a problem of maximizing the sum secrecy rate for UEs by searching for an optimal LED for each UE. Due to the non-convex and non-continuous nature of this security maximization problem, we propose an LED selection algorithm based on tabu search to avoid getting trapped in local optima and expedite the search process by managing trial vectors from previous iterations. Moreover, we introduce three LED selection strategies with a low computational complexity. The simulation results demonstrate that the proposed algorithm achieves a secrecy performance very close to the global optimal value, with a gap of less than 1%. Additionally, the proposed strategies exhibit a performance gap of 28% compared to the global optimal. |
| first_indexed | 2024-04-24T17:49:17Z |
| format | Article |
| id | doaj.art-483d512facc5408cadd70a99233e7957 |
| institution | Directory Open Access Journal |
| issn | 1424-8220 |
| language | English |
| last_indexed | 2024-04-24T17:49:17Z |
| publishDate | 2024-03-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Sensors |
| spelling | doaj.art-483d512facc5408cadd70a99233e79572024-03-27T14:04:06ZengMDPI AGSensors1424-82202024-03-01246190610.3390/s24061906Enhancing Security in Visible Light Communication: A Tabu-Search-Based Method for Transmitter SelectionGe Shi0Wei Cheng1Xiang Gao2Fupeng Wei3Heng Zhang4Qingzheng Wang5The School of Information Engineering, North China University of Water Resources and Electric Power, Zhengzhou 450046, ChinaThe School of Electronics and Information, Northwestern Polytechnical University, Xi’an 710129, ChinaThe School of Electronics and Information, Northwestern Polytechnical University, Xi’an 710129, ChinaThe School of Information Engineering, North China University of Water Resources and Electric Power, Zhengzhou 450046, ChinaThe School of Electronics and Information, Northwestern Polytechnical University, Xi’an 710129, ChinaThe School of Information Engineering, North China University of Water Resources and Electric Power, Zhengzhou 450046, ChinaIn this paper, we explore the secrecy performance of a visible light communication (VLC) system consisting of distributed light-emitting diodes (LEDs) and multiple users (UEs) randomly positioned within an indoor environment while considering the presence of an eavesdropper. To enhance the confidentiality of the system, we formulate a problem of maximizing the sum secrecy rate for UEs by searching for an optimal LED for each UE. Due to the non-convex and non-continuous nature of this security maximization problem, we propose an LED selection algorithm based on tabu search to avoid getting trapped in local optima and expedite the search process by managing trial vectors from previous iterations. Moreover, we introduce three LED selection strategies with a low computational complexity. The simulation results demonstrate that the proposed algorithm achieves a secrecy performance very close to the global optimal value, with a gap of less than 1%. Additionally, the proposed strategies exhibit a performance gap of 28% compared to the global optimal.https://www.mdpi.com/1424-8220/24/6/1906physical layer securityvisible light communicationLED selectionsecrecy rate |
| spellingShingle | Ge Shi Wei Cheng Xiang Gao Fupeng Wei Heng Zhang Qingzheng Wang Enhancing Security in Visible Light Communication: A Tabu-Search-Based Method for Transmitter Selection Sensors physical layer security visible light communication LED selection secrecy rate |
| title | Enhancing Security in Visible Light Communication: A Tabu-Search-Based Method for Transmitter Selection |
| title_full | Enhancing Security in Visible Light Communication: A Tabu-Search-Based Method for Transmitter Selection |
| title_fullStr | Enhancing Security in Visible Light Communication: A Tabu-Search-Based Method for Transmitter Selection |
| title_full_unstemmed | Enhancing Security in Visible Light Communication: A Tabu-Search-Based Method for Transmitter Selection |
| title_short | Enhancing Security in Visible Light Communication: A Tabu-Search-Based Method for Transmitter Selection |
| title_sort | enhancing security in visible light communication a tabu search based method for transmitter selection |
| topic | physical layer security visible light communication LED selection secrecy rate |
| url | https://www.mdpi.com/1424-8220/24/6/1906 |
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