Dual-Layer Security: Integration of Simulated QKD and Experimental PLS for VLC

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21230%2F25%3A00386189" target="_blank" >RIV/68407700:21230/25:00386189 - isvavai.cz</a>

Výsledek na webu

<a href="https://doi.org/10.1109/LPT.2025.3609517" target="_blank" >https://doi.org/10.1109/LPT.2025.3609517</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1109/LPT.2025.3609517" target="_blank" >10.1109/LPT.2025.3609517</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Dual-Layer Security: Integration of Simulated QKD and Experimental PLS for VLC

Popis výsledku v původním jazyce

This letter proposes a novel dual-layer security framework for visible light communication (VLC) by integrating the BB84 quantum key distribution (QKD) protocol with beam directivity-based physical layer security (PLS). This combined approach enhances resilience against eavesdropping threats, offering stronger security compared to individual techniques, particularly in highly secure environments. The analysis indicates that in the first layer, simulated in MATLAB® , the QKD system with multiphoton source benefits from an increased average number of photons, improving the secret key fraction and enhancing resistance to quantum channel attenuation. However, this advantage comes at the expense of heightened vulnerability to photon number splitting (PNS) attacks. To mitigate this, the second layer, location-based PLS, which is implemented on an experimental testbed, restricts Eve’s access to the VLC data channel by leveraging beam directivity. Within the limitations defined by the controlled indoor setup, the obtained results demonstrate that even under a strong PNS attack, Eve’s best bit error rate (BER) remains higher at 2.4x10-2 compared to Bob’s worst BER at 3.7x10-3 , ensuring secure communication.

Název v anglickém jazyce

Dual-Layer Security: Integration of Simulated QKD and Experimental PLS for VLC

Popis výsledku anglicky

This letter proposes a novel dual-layer security framework for visible light communication (VLC) by integrating the BB84 quantum key distribution (QKD) protocol with beam directivity-based physical layer security (PLS). This combined approach enhances resilience against eavesdropping threats, offering stronger security compared to individual techniques, particularly in highly secure environments. The analysis indicates that in the first layer, simulated in MATLAB® , the QKD system with multiphoton source benefits from an increased average number of photons, improving the secret key fraction and enhancing resistance to quantum channel attenuation. However, this advantage comes at the expense of heightened vulnerability to photon number splitting (PNS) attacks. To mitigate this, the second layer, location-based PLS, which is implemented on an experimental testbed, restricts Eve’s access to the VLC data channel by leveraging beam directivity. Within the limitations defined by the controlled indoor setup, the obtained results demonstrate that even under a strong PNS attack, Eve’s best bit error rate (BER) remains higher at 2.4x10-2 compared to Bob’s worst BER at 3.7x10-3 , ensuring secure communication.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

20202 - Communication engineering and systems

Projekt

—

Návaznosti

S - Specificky vyzkum na vysokych skolach

Rok uplatnění

2025

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

IEEE Photonics Technology Letters

ISSN

1041-1135

e-ISSN

1941-0174

Svazek periodika

37

Číslo periodika v rámci svazku

24

Stát vydavatele periodika

US - Spojené státy americké

Počet stran výsledku

4

Strana od-do

1467-1470

Kód UT WoS článku

001600714400005

EID výsledku v databázi Scopus

2-s2.0-105015956438