Physical Layer Security of Hybrid Satellite-FSO Cooperative Systems
In this paper, we study the physical layer secrecy performance of a hybrid satellite and free-space optical (FSO) cooperative system. The satellite links are assumed to follow the shadowed-Rician fading distribution, and the channel of the terrestrial link between the relay and destination is assume...
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| Format: | Article |
| Language: | English |
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IEEE
2019-01-01
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| Series: | IEEE Photonics Journal |
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| Online Access: | https://ieeexplore.ieee.org/document/8610004/ |
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| author | Yun Ai Aashish Mathur Michael Cheffena Manav R. Bhatnagar Hongjiang Lei |
| author_facet | Yun Ai Aashish Mathur Michael Cheffena Manav R. Bhatnagar Hongjiang Lei |
| author_sort | Yun Ai |
| collection | DOAJ |
| description | In this paper, we study the physical layer secrecy performance of a hybrid satellite and free-space optical (FSO) cooperative system. The satellite links are assumed to follow the shadowed-Rician fading distribution, and the channel of the terrestrial link between the relay and destination is assumed to experience the gamma–gamma fading. For the FSO communications, the effects of different types of detection techniques (i.e., heterodyne detection and intensity modulation with direct detection) as well as the pointing error are considered. We derive exact analytical expressions for the average secrecy capacity and secrecy outage probability (SOP) for both cases of amplify-and-forward (AF) and decode-and-forward (DF) relaying. The asymptotic analysis for the SOP is also conducted to provide more insights on the impact of FSO and satellite channels on secrecy performance. It is found that with the AF with fixed gain scheme, the secrecy diversity order of the investigated system is only dependent on the channel characteristics of the FSO link and the FSO detection type, whereas the secrecy diversity is zero when the relay node employs DF or AF with variable-gain schemes. |
| format | Article |
| id | doaj-art-815eb321a7ea4e26a2c3556576676c9a |
| institution | Kabale University |
| issn | 1943-0655 |
| language | English |
| publishDate | 2019-01-01 |
| publisher | IEEE |
| record_format | Article |
| series | IEEE Photonics Journal |
| spelling | doaj-art-815eb321a7ea4e26a2c3556576676c9a2025-08-20T03:32:58ZengIEEEIEEE Photonics Journal1943-06552019-01-0111111410.1109/JPHOT.2019.28926188610004Physical Layer Security of Hybrid Satellite-FSO Cooperative SystemsYun Ai0https://orcid.org/0000-0002-3409-8152Aashish Mathur1https://orcid.org/0000-0003-1269-855XMichael Cheffena2https://orcid.org/0000-0003-2086-8627Manav R. Bhatnagar3https://orcid.org/0000-0003-0612-594XHongjiang Lei4https://orcid.org/0000-0002-9070-6300Faculty of Engineering, Norwegian University of Science and Technology, Gjøvik, NorwayDepartment of Electrical Engineering, Indian Institute of Technology Jodhpur, Jodhpur, IndiaFaculty of Engineering, Norwegian University of Science and Technology, Gjøvik, NorwayDepartment of Electrical Engineering, Indian Institute of Technology - Delhi, New Delhi, IndiaSchool of Communication and Information Engineering, Chongqing University of Posts and Telecommunications, Chongqing, ChinaIn this paper, we study the physical layer secrecy performance of a hybrid satellite and free-space optical (FSO) cooperative system. The satellite links are assumed to follow the shadowed-Rician fading distribution, and the channel of the terrestrial link between the relay and destination is assumed to experience the gamma–gamma fading. For the FSO communications, the effects of different types of detection techniques (i.e., heterodyne detection and intensity modulation with direct detection) as well as the pointing error are considered. We derive exact analytical expressions for the average secrecy capacity and secrecy outage probability (SOP) for both cases of amplify-and-forward (AF) and decode-and-forward (DF) relaying. The asymptotic analysis for the SOP is also conducted to provide more insights on the impact of FSO and satellite channels on secrecy performance. It is found that with the AF with fixed gain scheme, the secrecy diversity order of the investigated system is only dependent on the channel characteristics of the FSO link and the FSO detection type, whereas the secrecy diversity is zero when the relay node employs DF or AF with variable-gain schemes.https://ieeexplore.ieee.org/document/8610004/Physical layer securityhybrid satellite free-space optical (FSO) cooperative systemland mobile satellite (LMS) channelsecrecy outage probabilityaverage secrecy capacity |
| spellingShingle | Yun Ai Aashish Mathur Michael Cheffena Manav R. Bhatnagar Hongjiang Lei Physical Layer Security of Hybrid Satellite-FSO Cooperative Systems IEEE Photonics Journal Physical layer security hybrid satellite free-space optical (FSO) cooperative system land mobile satellite (LMS) channel secrecy outage probability average secrecy capacity |
| title | Physical Layer Security of Hybrid Satellite-FSO Cooperative Systems |
| title_full | Physical Layer Security of Hybrid Satellite-FSO Cooperative Systems |
| title_fullStr | Physical Layer Security of Hybrid Satellite-FSO Cooperative Systems |
| title_full_unstemmed | Physical Layer Security of Hybrid Satellite-FSO Cooperative Systems |
| title_short | Physical Layer Security of Hybrid Satellite-FSO Cooperative Systems |
| title_sort | physical layer security of hybrid satellite fso cooperative systems |
| topic | Physical layer security hybrid satellite free-space optical (FSO) cooperative system land mobile satellite (LMS) channel secrecy outage probability average secrecy capacity |
| url | https://ieeexplore.ieee.org/document/8610004/ |
| work_keys_str_mv | AT yunai physicallayersecurityofhybridsatellitefsocooperativesystems AT aashishmathur physicallayersecurityofhybridsatellitefsocooperativesystems AT michaelcheffena physicallayersecurityofhybridsatellitefsocooperativesystems AT manavrbhatnagar physicallayersecurityofhybridsatellitefsocooperativesystems AT hongjianglei physicallayersecurityofhybridsatellitefsocooperativesystems |