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Private communication with photonic terahertz chaos
Zhejiang University, China.
Zhejiang University, China.
Zhejiang University, China.
RISE Research Institutes of Sweden, Digital Systems, Industrial Systems. Riga Technical University, Latvia; KTH Royal Institute of Technology, Sweden.ORCID iD: 0000-0003-4906-1704
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2024 (English)In: Advanced Photonics, ISSN 2577-5421, Vol. 6, no 6, article id 66004Article in journal (Refereed) Published
Abstract [en]

Terahertz (THz) communications are vulnerable to eavesdropping due to their scattering and diffraction properties, which limits their practical deployment. We propose a photonic THz chaos encryption and synchronization scheme to secure THz communications. We experimentally demonstrate the generation, encryption, and wireless transmission of a 5 Gbit∕s non-return-to-zero signal at 120 GHz using flexible photonic THz chaos. In addition, we achieve high-quality chaos synchronization with a neural network, attaining a correlation coefficient of up to 90.6%. This scheme offers a viable solution for secure THz communications, showing significant potential for enhancing wireless communication privacy.
Place, publisher, year, edition, pages
SPIE , 2024. Vol. 6, no 6, article id 66004
Keywords [en]
Chaos theory; Differential privacy; Photonic devices; Photons; Secure communication; Terahertz waves; Chaos encryption; Chaos synchronization; Physical layer security; Private communication; Scattering property; Tera Hertz; Terahertz chaos encryption; Terahertz chaos synchronization; Terahertz photonics; Photonics
National Category
Electrical Engineering, Electronic Engineering, Information Engineering
Identifiers
URN: urn:nbn:se:ri:diva-76465DOI: 10.1117/1.AP.6.6.066004Scopus ID: 2-s2.0-85213529274OAI: oai:DiVA.org:ri-76465DiVA, id: diva2:1932113
Note

 This work wassupported by the National Key R&D Program of China(Grant No. 2020YFB1805700), the National Natural ScienceFoundation of China (Grant No. 62471433), the LZP FLPPproject ‘MIR FAST’ lzp-2023-1-0503, the Swedish ResearchCouncil (VR) projects 2019-05197 and 2022-04798, and thestrategic innovation program Smarter Electronic Systems - ajoint venture by Vinnova, Formas and the Swedish EnergyAgency A-FRONTAHUL project (2023-00659).

Available from: 2025-01-28 Created: 2025-01-28 Last updated: 2025-09-23Bibliographically approved

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Pang, XiaodanOzolins, Oskars

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