Physical Layer Security Analysis of Multi-Hop Hybrid RF/FSO System in Presence of Multiple Eavesdroppers
In this paper, the physical layer security (PLS) analysis for a decode-and-forward (DF) protocol based multi-hop hybrid radio frequency (RF)/ free space optics (FSO) is presented. Herein, two different scenarios are considered for detecting the secured information at the destination. In the first sc...
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| Format: | Article |
| Language: | English |
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IEEE
2022-01-01
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| Series: | IEEE Photonics Journal |
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| Online Access: | https://ieeexplore.ieee.org/document/9969988/ |
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| author | Dipti R. Pattanayak Vivek K. Dwivedi Vikram Karwal Pankaj K. Yadav G. Singh |
| author_facet | Dipti R. Pattanayak Vivek K. Dwivedi Vikram Karwal Pankaj K. Yadav G. Singh |
| author_sort | Dipti R. Pattanayak |
| collection | DOAJ |
| description | In this paper, the physical layer security (PLS) analysis for a decode-and-forward (DF) protocol based multi-hop hybrid radio frequency (RF)/ free space optics (FSO) is presented. Herein, two different scenarios are considered for detecting the secured information at the destination. In the first scenario, at each hop, the received signals with higher secrecy capacity are selected. However, in the second scenario, the RF and FSO signals are simply decoded and forwarded to the next hop and selection is done at the last hop only. Each node in the system is connected to its subsequent node through parallel RF and FSO links. The FSO links and RF links are characterized by Málaga (<inline-formula><tex-math notation="LaTeX">$\mathcal {M}$</tex-math></inline-formula>) and Nakagami-<inline-formula><tex-math notation="LaTeX">$m$</tex-math></inline-formula> composite distributions respectively. For both scenarios, the secrecy outage probability (SOP), strictly positive secrecy capacity (SPSC), intercept probability (IP), and effective secrecy throughput (EST) are obtained as performance metrics. These performance metrics are obtained by considering pointing error, different optical signal detection methods, turbulence effect, and the RF link fading parameter (<inline-formula><tex-math notation="LaTeX">$m$</tex-math></inline-formula>). Using the results, the security and reliability trade-off analysis is discussed for two scenarios. In addition, the asymptotic results are also obtained to study the system in depth. Further, the secrecy diversity order (SDO) and secrecy coding gain (SCG) are obtained to analyse the system in depth. Finally, Monte-Carlo Simulation is performed to verify the obtained results. The results manifest that the scenario with selection at each hop provides better secrecy performance than the scenario with selection at the last hop. |
| first_indexed | 2024-04-11T05:30:00Z |
| format | Article |
| id | doaj.art-107da536ef4c439c88430d304cbb9daf |
| institution | Directory Open Access Journal |
| issn | 1943-0655 |
| language | English |
| last_indexed | 2024-04-11T05:30:00Z |
| publishDate | 2022-01-01 |
| publisher | IEEE |
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| series | IEEE Photonics Journal |
| spelling | doaj.art-107da536ef4c439c88430d304cbb9daf2022-12-23T00:00:07ZengIEEEIEEE Photonics Journal1943-06552022-01-0114611210.1109/JPHOT.2022.32263519969988Physical Layer Security Analysis of Multi-Hop Hybrid RF/FSO System in Presence of Multiple EavesdroppersDipti R. Pattanayak0https://orcid.org/0000-0001-5906-009XVivek K. Dwivedi1https://orcid.org/0000-0003-4980-8011Vikram Karwal2https://orcid.org/0000-0002-0589-9102Pankaj K. Yadav3G. Singh4https://orcid.org/0000-0002-5159-3286Department of Electronics and Communication Engineering, GL Bajaj Institute of Technology and Management, Greater Noida, IndiaDepartment of Electronics and Communication Engineering, Jaypee Institute of Information Technology, Noida, IndiaDepartment of Electronics and Communication Engineering, Jaypee Institute of Information Technology, Noida, IndiaDepartment of Electronics and Communication Engineering, Jaypee Institute of Information Technology, Noida, IndiaCentre for Smart Information and Communication Systems, Department of Electrical and Electronic Engineering Science, Auckland Park Kingsway Campus, University of Johannesburg, Johannesburg, South AfricaIn this paper, the physical layer security (PLS) analysis for a decode-and-forward (DF) protocol based multi-hop hybrid radio frequency (RF)/ free space optics (FSO) is presented. Herein, two different scenarios are considered for detecting the secured information at the destination. In the first scenario, at each hop, the received signals with higher secrecy capacity are selected. However, in the second scenario, the RF and FSO signals are simply decoded and forwarded to the next hop and selection is done at the last hop only. Each node in the system is connected to its subsequent node through parallel RF and FSO links. The FSO links and RF links are characterized by Málaga (<inline-formula><tex-math notation="LaTeX">$\mathcal {M}$</tex-math></inline-formula>) and Nakagami-<inline-formula><tex-math notation="LaTeX">$m$</tex-math></inline-formula> composite distributions respectively. For both scenarios, the secrecy outage probability (SOP), strictly positive secrecy capacity (SPSC), intercept probability (IP), and effective secrecy throughput (EST) are obtained as performance metrics. These performance metrics are obtained by considering pointing error, different optical signal detection methods, turbulence effect, and the RF link fading parameter (<inline-formula><tex-math notation="LaTeX">$m$</tex-math></inline-formula>). Using the results, the security and reliability trade-off analysis is discussed for two scenarios. In addition, the asymptotic results are also obtained to study the system in depth. Further, the secrecy diversity order (SDO) and secrecy coding gain (SCG) are obtained to analyse the system in depth. Finally, Monte-Carlo Simulation is performed to verify the obtained results. The results manifest that the scenario with selection at each hop provides better secrecy performance than the scenario with selection at the last hop.https://ieeexplore.ieee.org/document/9969988/Physical layer securitymulti-hop hybrid radio frequency/free space opticsSecrecy outage probabilitystrictly positive secrecy capacityintercept probabilityand effective secrecy throughput |
| spellingShingle | Dipti R. Pattanayak Vivek K. Dwivedi Vikram Karwal Pankaj K. Yadav G. Singh Physical Layer Security Analysis of Multi-Hop Hybrid RF/FSO System in Presence of Multiple Eavesdroppers IEEE Photonics Journal Physical layer security multi-hop hybrid radio frequency/free space optics Secrecy outage probability strictly positive secrecy capacity intercept probability and effective secrecy throughput |
| title | Physical Layer Security Analysis of Multi-Hop Hybrid RF/FSO System in Presence of Multiple Eavesdroppers |
| title_full | Physical Layer Security Analysis of Multi-Hop Hybrid RF/FSO System in Presence of Multiple Eavesdroppers |
| title_fullStr | Physical Layer Security Analysis of Multi-Hop Hybrid RF/FSO System in Presence of Multiple Eavesdroppers |
| title_full_unstemmed | Physical Layer Security Analysis of Multi-Hop Hybrid RF/FSO System in Presence of Multiple Eavesdroppers |
| title_short | Physical Layer Security Analysis of Multi-Hop Hybrid RF/FSO System in Presence of Multiple Eavesdroppers |
| title_sort | physical layer security analysis of multi hop hybrid rf fso system in presence of multiple eavesdroppers |
| topic | Physical layer security multi-hop hybrid radio frequency/free space optics Secrecy outage probability strictly positive secrecy capacity intercept probability and effective secrecy throughput |
| url | https://ieeexplore.ieee.org/document/9969988/ |
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