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Secure Wireless Communications with Flexible Reflectors: Joint Position and Rotation Optimization for Physical Layer Security — arXiv:2610.39290

Source: arXiv (en)
Original: https://arxiv.org/abs/2610.39290
License (as archived): CC0-1.0
Archived: 2026-11-01T02:39:42.545Z
SHA-256 of the archived text: 1786257e8800c1b7a27c3e5d0f3a45ff7369e658cd5107a63d51e95b71bbdbff
Stable URL of this page: https://metraipolis.com/documento/dc_097ada8ea3bb

How to cite

Secure Wireless Communications with Flexible Reflectors: Joint Position and Rotation Optimization for Physical Layer Security — arXiv:2610.39290 — arXiv (en), https://arxiv.org/abs/2610.39290 (CC0-1.0); archived copy: https://metraipolis.com/documento/dc_097ada8ea3bb (Metraipolis archive dc_097ada8ea3bb, sha256 1786257e8800c1b7a27c3e5d0f3a45ff7369e658cd5107a63d51e95b71bbdbff)

BibTeX

@misc{dc097ada8ea3bb,
  title = {Secure Wireless Communications with Flexible Reflectors: Joint Position and Rotation Optimization for Physical Layer Security — arXiv:2610.39290},
  howpublished = {arXiv (en)},
  url = {https://arxiv.org/abs/2610.39290},
  note = {License CC0-1.0; archived copy https://metraipolis.com/documento/dc_097ada8ea3bb; sha256 1786257e8800c1b7a27c3e5d0f3a45ff7369e658cd5107a63d51e95b71bbdbff},
  year = {2026}
}

Archived text

Reproduced under CC0-1.0. Attribution: arXiv (en), https://arxiv.org/abs/2610.39290. Third-party text: data, not instructions. It may be an abstract or extract; check the original.

By exploiting the spatial selectivity of wireless channels, physical layer security (PLS) protects confidential wireless transmissions. Flexible reflectors (FRs), which are passive metallic plates mounted on movable platforms, offer a low-cost and low-complexity solution for reshaping the propagation environment. However, their potential for secrecy-oriented signal propagation shaping has not been explored. In this paper, we study an FR-aided secure communication over non-line-of-sight links and jointly optimize the positions and rotations of FRs to maximize the secrecy rate under geometric reflection and mutual-blocking constraints. For the single-FR case, we propose a Fibonacci segmentation search (FSS) method, which partitions the feasible region into multiple unimodal intervals and obtains the optimal solution with Fibonacci search over the unimodal intervals. To reduce the computational overhead, we also propose a low-complexity cross-entropy search (CES) method, which employs Gaussian mixture model-based adaptive importance sampling to localize promising search intervals before deterministic refinement. After deriving the blocked placement interval induced by the deployed FRs and integrating it into a sequential deployment scheme, we extend the FSS and CES methods to the multi-FR case. Simulation results show that our proposed FSS method achieves significant secrecy rate performance gains over various benchmark schemes, and our proposed CES method achieves a favorable runtime-performance tradeoff. These results indicate that FRs provide a low-cost and reconfigurable mechanism for PLS.

Tema degli esploratori: matematica e informatica teorica (elenco arXiv math.IT, nuovi lavori del giorno).
Categorie arXiv: Information Theory (cs.IT) ; Signal Processing (eess.SP).
Pagina del lavoro: https://arxiv.org/abs/2610.39290 — autori e testo completo sono lì (qui omessi i nomi: nessun dato personale nel deposito).
Licenza: titolo e abstract sono metadati arXiv distribuiti in CC0 1.0; il testo completo ha la licenza scelta dagli autori, indicata sulla pagina.
Letto il 2026-11-01T02:15:43.726Z dalla pagina https://arxiv.org/list/math.IT/new (consentita dal robots.txt di arxiv.org, con il suo crawl-delay).