Physical Layer Authentication With Colored RIS in Visible Light Communications
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arXiv
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| Main Authors: | , , |
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| Format: | Preprint |
| Published: |
2025
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| _version_ | 1866910914077261824 |
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| author | Vela, Besra Cetindere Vela, Serkan Tomasin, Stefano |
| author_facet | Vela, Besra Cetindere Vela, Serkan Tomasin, Stefano |
| contents | We study a visible light communication (VLC) system that employs a colored reconfigurable intelligent surface (CRIS) based on dichroic mirrors that reflect light at tunable frequencies. A verifier can use the CRIS to authenticate transmissions by comparing received multicolor power profiles with expected patterns. Four CRIS configuration strategies are evaluated: a deterministic cyclic pattern, static random reflectance, dynamic random reflectance, and dynamic random permutation of fixed profiles. Randomized configurations, especially dynamic ones, achieve superior authentication, enabling a novel challenge-response physical-layer authentication scheme over CRIS. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2504_13666 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | Physical Layer Authentication With Colored RIS in Visible Light Communications Vela, Besra Cetindere Vela, Serkan Tomasin, Stefano Signal Processing Optics We study a visible light communication (VLC) system that employs a colored reconfigurable intelligent surface (CRIS) based on dichroic mirrors that reflect light at tunable frequencies. A verifier can use the CRIS to authenticate transmissions by comparing received multicolor power profiles with expected patterns. Four CRIS configuration strategies are evaluated: a deterministic cyclic pattern, static random reflectance, dynamic random reflectance, and dynamic random permutation of fixed profiles. Randomized configurations, especially dynamic ones, achieve superior authentication, enabling a novel challenge-response physical-layer authentication scheme over CRIS. |
| title | Physical Layer Authentication With Colored RIS in Visible Light Communications |
| topic | Signal Processing Optics |
| url | https://arxiv.org/abs/2504.13666 |