Co-propagation of CV-QKD and classical signals over DWDM-based 5G fronthaul optical networks

Wenpeng Gao; Weiwen Kong; Jianjun Tang; Yuheng Xie; Tianqi Dou; Zhenhua Li; Qi Zhao; Na Chen; Yuanchen Hao

doi:10.1117/12.3025653

6 May 2024 Co-propagation of CV-QKD and classical signals over DWDM-based 5G fronthaul optical networks

Wenpeng Gao, Weiwen Kong, Jianjun Tang, Yuheng Xie, Tianqi Dou, Zhenhua Li, Qi Zhao, Na Chen, Yuanchen Hao

Proceedings Volume 13161, Fourth International Conference on Telecommunications, Optics, and Computer Science (TOCS 2023); 131610C (2024) https://doi.org/10.1117/12.3025653
Event: Fourth International Conference on Telecommunications, Optics and Computer Science (TOCS 2023), 2023, Xi’an, China

Abstract

This study investigate the integration of discrete modulated coherent state (DMCS) continuous variable quantum key distribution (CV-QKD) with wavelength division multiplexing (WDM) in 5G fronthaul optical networks. Firstly, an architecture of quantum-classical co-propagation in C-band DWDM-based 5G fornthaul network is constructed and the wavelength assignment scheme for classical/quantum channels is designed. By assigning the quantum channels in band of low Raman scattering coefficient and setting the quantum-classical channel space to be 200 GHz, the proposed scheme can effectively reduce the spontaneous Raman scattering (SpRS) and four-wave-mixing (FWM) noise. Then, the secret key rate (SKR) of DMCS protocol and the excess noise induced by SpRS are analyzed theoretically to furtherly character the co-propagation architecture. Lastly, numerical simulation is carried out to evaluate the impact of SpRS noise on the CV-QKD performance. The simulation results show that by employing the proposed wavelength assignment scheme, the co-propagation system can support positive SKR at a maximum distance of approximately 41 km for 8 classical channels use and 30 km for 16 classical channels use, respectively. Our work can provide a reference for practical deployment of quantum secured 5G fronthaul optical networks.

(2024) Published by SPIE. Downloading of the abstract is permitted for personal use only.

Citation Download Citation

Wenpeng Gao, Weiwen Kong, Jianjun Tang, Yuheng Xie, Tianqi Dou, Zhenhua Li, Qi Zhao, Na Chen, and Yuanchen Hao "Co-propagation of CV-QKD and classical signals over DWDM-based 5G fronthaul optical networks", Proc. SPIE 13161, Fourth International Conference on Telecommunications, Optics, and Computer Science (TOCS 2023), 131610C (6 May 2024); https://doi.org/10.1117/12.3025653

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available

Members: $17.00

Non-members: $21.00 ADD TO CART

PROCEEDINGS
7 PAGES

DOWNLOAD PAPER SAVE TO MY LIBRARY

GET CITATION

RIGHTS & PERMISSIONS

Get copyright permission Get copyright permission on Copyright Marketplace

KEYWORDS

Quantum channels

Quantum signals

Quantum noise

Optical networks

Modulation

Quantum key distribution

Dense wavelength division multiplexing

Show All Keywords

Keywords/Phrases

Search In:

Publication Years