Design of Secured FTTH for Routing and Wavelength Assignment (RWA) in Optical Networks

Authors: Anjali Maurya, Nikita Jaiswal, Poornima Kalekar

DOI Link: https://doi.org/10.22214/ijraset.2026.81008

Abstract

As the demand for high-speed and secure digital communication continues to grow, optical networks have emergedasthe backbone of modernbroadbandinfrastructure. Among these, Fiber to the Home (FTTH) solutions offer unparalleled performance, but face significant challenges in Routing and Wavelength Assignment (RWA). This paper presents a secure and cost-effective prototype that utilizes Visible Light Communication (VLC) to demonstrate RWA functionality within an FTTH environment. Using laser-based opticaltransmission andLabVIEW-basedmodulesformessage encoding, encryption, and visualization, our systemsimulates a real-worldsecurecommunicationchannel.Atthis50%progress stage, partial implementation has been achieved, including string and single-letter transmission, LED writing, and VLC encryption. The results validate the feasibility of secure data transmission via VLC in controlled environments.

Introduction

The paper presents a prototype for improving secure communication in optical networks, focusing on Fiber to the Home (FTTH) systems. It addresses challenges in Routing and Wavelength Assignment (RWA) by using Visible Light Communication (VLC) as a cost-effective and secure alternative. The system uses laser-based transmission and LabVIEW modules for encoding, encryption, and visualization to simulate secure data transfer. At the current 50% development stage, it demonstrates basic functionality such as text transmission, LED-based data writing, and VLC encryption, showing the feasibility of secure optical communication in controlled environments.

Conclusion

Thisresearch demonstrates arobust andaffordableapproach to simulating secure Routing and Wavelength Assignment (RWA) in FTTHsystemsusing visiblelightcommunication. The proposed system leverages widely available hardware and software tools to provide a hands-on understanding of opticalcommunication,modulationtechniques,andreal-time signalanalysis. Theinherentphysical-layer securityofVLC, combined with Arduino-based modular design and LabVIEW integration, allows for transparent and accurate message transmission. The system\'s educational value makes it ideal for teaching network security, optical signaling, and embedded development. Moreover, the simplicity and accessibility of the hardware make this model a valuable reference for cost-sensitive deployments, including smart classrooms, rural communication systems, and prototyping platforms for optical research. The flexibility of VLC systems also opens opportunitiesforcross-disciplinarylearning,integrating communication engineering with embedded systems and electronics. Futureextensionsofthisprojectcouldinclude: • IntegrationofWavelengthDivisionMultiplexing (WDM) to allow multi-channel data transmission • Implementationofencryptionanddecryptionlogic in software • Useofprecisionlensestoexpandtransmission range • AI-basedroutingdecisionsfordynamicwavelength switching • Real-timemobileappintegrationforremote monitoring With the ever-growing demand for high-speed and secure internetdelivery,especiallyinremoteandunderservedareas, such modular optical communication setups can provide a foundationforscalableandenergy-efficientnetworkdesigns. This prototype thus contributes to the broader movement toward democratizing access to high-performance communication technology and promoting hands-on education in optical and embedded systems. The system sets a foundation for moreadvanced research in embeddedopticalsystemsandencouragesfurtherinnovation in secure, scalable, and sustainable FTTH models.

References

[1] M.Ali, S. Khan, and M. Qureshi, “Optimization of Routing andWavelength Assignment in DWDM Networks,” Journal of OpticalNetworking, vol. 12, no. 3, 2020. [2] A.Patel and A. Joshi, “Design Considerations for Secure FTTHNetwork Using PON,” International Journal of CommunicationNetworks, vol. 8, no. 2, 2021. [3] X.Li and W. Chen, “Visible Light Communication for IndoorWireless Access: A Survey,” IEEE Communications Surveys &Tutorials, vol. 24, no. 1, 2022. [4] Y. Zhang and H. Liu, “Securing Optical Networks AgainstEavesdropping Attacks: A Review,” Optical Switching andNetworking, vol. 32, 2019. [5] S.Nair and R. Thomas, “Arduino-Based Optical Data TransmissionUsing Laser and Photodiode,” International Journal of EmbeddedSystems, vol. 5, no. 4, 2023. [6] R.Sharma,A.Gupta,andM.Srivastava,“PhotonicSwitchIntegrationinWavelengthAssignment for OpticalNetworks,” Proceedingsofthe2021 Optical Network Conference, pp. 122–129, 2021. [7] G. Kaur and D. Verma, “AI-Assisted Dynamic WavelengthAssignment in FTTH Networks,” International Journal of OpticalCommunication Systems, vol. 15, no. 2, 2022.

Copyright

Copyright © 2026 Anjali Maurya, Nikita Jaiswal, Poornima Kalekar . This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

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Paper Id : IJRASET81008

Publish Date : 2026-04-24

ISSN : 2321-9653

Publisher Name : IJRASET

DOI Link : Click Here