Simulative Analysis of Stimulated Raman Scattering Effects on WDM-PON Based 5G Fronthaul Networks

In future hybrid fiber and radio access networks, wavelength division multiplexing passive optical networks (WDM-PON) based fifth-generation (5G) fronthaul systems are anticipated to coexist with current protocols, potentially leading to non-linearity impairment due to stimulated Raman scattering (S...

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Main Authors: Yan Xu, Shuai Wang, Asad Saleem
Format: Article
Language:English
Published: MDPI AG 2025-05-01
Series:Sensors
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Online Access:https://www.mdpi.com/1424-8220/25/10/3237
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author Yan Xu
Shuai Wang
Asad Saleem
author_facet Yan Xu
Shuai Wang
Asad Saleem
author_sort Yan Xu
collection DOAJ
description In future hybrid fiber and radio access networks, wavelength division multiplexing passive optical networks (WDM-PON) based fifth-generation (5G) fronthaul systems are anticipated to coexist with current protocols, potentially leading to non-linearity impairment due to stimulated Raman scattering (SRS). To meet the loss budget requirements of 5G fronthaul networks, this paper investigates the power changes induced by SRS in WDM-PON based 5G fronthaul systems. The study examines wavelength allocation schemes utilizing both the C-band and O-band, with modulation formats including non-return-to-zero (NRZ), optical double-binary (ODB), and four-level pulse amplitude modulation (PAM4). Simulation results indicate that SRS non-linearity impairment causes a power depletion of 1.3 dB in the 20 km C-band link scenario, regardless of whether the modulation formats are 25 Gb/s or 50 Gb/s NRZ, ODB, and PAM4, indicating that the SRS-induced power changes are largely independent of both modulation formats and modulation rates. This effect occurs when only the upstream and downstream wavelengths of the 5G fronthaul are broadcast. However, when the 5G fronthaul wavelengths coexist with previous protocols, the maximum power depletion increases significantly to 10.1 dB. In the O-band scenario, the SRS-induced maximum power depletion reaches 1.5 dB with NRZ, ODB, and PAM4 modulation formats at both 25 Gb/s and 50 Gb/s. Based on these analyses, the SRS non-linearity impairment shall be fully considered when planning the wavelengths for 5G fronthaul transmission.
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spelling doaj-art-96e0ca62d58544fda835935fdc3ef95b2025-08-20T03:12:09ZengMDPI AGSensors1424-82202025-05-012510323710.3390/s25103237Simulative Analysis of Stimulated Raman Scattering Effects on WDM-PON Based 5G Fronthaul NetworksYan Xu0Shuai Wang1Asad Saleem2School of Opto-Electronic Engineering, Zaozhuang University, Zaozhuang 277160, ChinaSchool of Opto-Electronic Engineering, Zaozhuang University, Zaozhuang 277160, ChinaCollaborative Research Center, Shanghai University of Medicine & Health Science, Shanghai 201318, ChinaIn future hybrid fiber and radio access networks, wavelength division multiplexing passive optical networks (WDM-PON) based fifth-generation (5G) fronthaul systems are anticipated to coexist with current protocols, potentially leading to non-linearity impairment due to stimulated Raman scattering (SRS). To meet the loss budget requirements of 5G fronthaul networks, this paper investigates the power changes induced by SRS in WDM-PON based 5G fronthaul systems. The study examines wavelength allocation schemes utilizing both the C-band and O-band, with modulation formats including non-return-to-zero (NRZ), optical double-binary (ODB), and four-level pulse amplitude modulation (PAM4). Simulation results indicate that SRS non-linearity impairment causes a power depletion of 1.3 dB in the 20 km C-band link scenario, regardless of whether the modulation formats are 25 Gb/s or 50 Gb/s NRZ, ODB, and PAM4, indicating that the SRS-induced power changes are largely independent of both modulation formats and modulation rates. This effect occurs when only the upstream and downstream wavelengths of the 5G fronthaul are broadcast. However, when the 5G fronthaul wavelengths coexist with previous protocols, the maximum power depletion increases significantly to 10.1 dB. In the O-band scenario, the SRS-induced maximum power depletion reaches 1.5 dB with NRZ, ODB, and PAM4 modulation formats at both 25 Gb/s and 50 Gb/s. Based on these analyses, the SRS non-linearity impairment shall be fully considered when planning the wavelengths for 5G fronthaul transmission.https://www.mdpi.com/1424-8220/25/10/32375G fronthaul networksWDM-PONstimulated Raman scattering (SRS)power changesmodulation formats
spellingShingle Yan Xu
Shuai Wang
Asad Saleem
Simulative Analysis of Stimulated Raman Scattering Effects on WDM-PON Based 5G Fronthaul Networks
Sensors
5G fronthaul networks
WDM-PON
stimulated Raman scattering (SRS)
power changes
modulation formats
title Simulative Analysis of Stimulated Raman Scattering Effects on WDM-PON Based 5G Fronthaul Networks
title_full Simulative Analysis of Stimulated Raman Scattering Effects on WDM-PON Based 5G Fronthaul Networks
title_fullStr Simulative Analysis of Stimulated Raman Scattering Effects on WDM-PON Based 5G Fronthaul Networks
title_full_unstemmed Simulative Analysis of Stimulated Raman Scattering Effects on WDM-PON Based 5G Fronthaul Networks
title_short Simulative Analysis of Stimulated Raman Scattering Effects on WDM-PON Based 5G Fronthaul Networks
title_sort simulative analysis of stimulated raman scattering effects on wdm pon based 5g fronthaul networks
topic 5G fronthaul networks
WDM-PON
stimulated Raman scattering (SRS)
power changes
modulation formats
url https://www.mdpi.com/1424-8220/25/10/3237
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AT shuaiwang simulativeanalysisofstimulatedramanscatteringeffectsonwdmponbased5gfronthaulnetworks
AT asadsaleem simulativeanalysisofstimulatedramanscatteringeffectsonwdmponbased5gfronthaulnetworks