Information Security Risks Outside the Laser Beam in Terrestrial Free-Space Optical Communication
Consider a terrestrial free-space optical (FSO) communication system with a potential eavesdropper outside the laser beam who can capture the information through a non-line-of-sight scattering channel. We study the information security risks in this system under different atmospheric conditions and...
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| Main Authors: | , |
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| Format: | Article |
| Language: | English |
| Published: |
IEEE
2016-01-01
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| Series: | IEEE Photonics Journal |
| Subjects: | |
| Online Access: | https://ieeexplore.ieee.org/document/7563344/ |
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| Summary: | Consider a terrestrial free-space optical (FSO) communication system with a potential eavesdropper outside the laser beam who can capture the information through a non-line-of-sight scattering channel. We study the information security risks in this system under different atmospheric conditions and show that the risks can be neglected for the high-visibility condition while they become serious for the low-visibility situation. We further show the secrecy capacity when the eavesdropper changes locations and present a 2-D distribution. Finally, the secrecy capacity outage probability of a turbulence-induced FSO system is derived. It is found that the secure transmission system performance is very sensitive to the background radiation and required transmission rate under strong turbulence."?> |
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| ISSN: | 1943-0655 |