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Article

Protecting Physical Communications in 5G C-RAN Architectures through Resonant Mechanisms in Optical Media

1
Escuela Politécnica Superior, Universidad Alfonso X el Sabio, UAX, Avenida Universidad, 1, Villanueva de la Cañada, 28691 Madrid, Spain
2
Department of Geospatial Engineering, Universidad Politécnica de Madrid, UPM Campus Sur, Km 7.5 de la Autovía de Valencia, 28031 Madrid, Spain
3
Department of Information Systems, Universidad Politécnica de Madrid, UPM Campus Sur, Km 7.5 de la Autovía de Valencia, 28031 Madrid, Spain
4
Institute of Information Systems, University of Applied Sciences Western Switzerland (HES-SO), Techno-Pôle 3, 3960 Sierre, Valais, Switzerland
*
Author to whom correspondence should be addressed.
Sensors 2020, 20(15), 4104; https://doi.org/10.3390/s20154104
Received: 23 June 2020 / Revised: 16 July 2020 / Accepted: 21 July 2020 / Published: 23 July 2020
(This article belongs to the Special Issue Selected papers from WISA 2019)
Future 5G networks are characterized by three basic ideas: enhanced mobile broadband communications, massive machine-type communications, and ultra-low-latency communications. Any of these requirements needs, to be fulfilled, the implementation of high-efficiency technologies at all levels. This includes some of the costliest mechanisms in terms of computational time and bitrate: information protection solutions. Typical techniques in this area employ complex algorithms and large protocol headers, which strongly reduces the effective baud rate and latency of future 5G networks and communications. This is especially relevant in the access network, which in 5G networks will follow a cloud-based architecture, where thousands of different devices must communicate, before aggregating all those streams to be sent to the backbone. Then, new and more efficient mechanisms are needed in the cloud radio access networks (C-RAN) for future 5G systems. Therefore, in this paper it is proposed a novel information protection scheme for C-RAN architectures based on resonant phenomena in optical fibers communicating the fronthaul and backhaul in 5G networks. Resonant structures and physical nonlinearities generate a chaotic signal which may encrypt and hide at physical level every communication stream in a very efficient manner. To evaluate the proposed mechanism, an experimental validation based on simulation techniques is also described and results discussed. View Full-Text
Keywords: 5G networks; steganography; chaotic encryption; resonant optical structures; C-RAN architecture 5G networks; steganography; chaotic encryption; resonant optical structures; C-RAN architecture
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MDPI and ACS Style

Bordel Sánchez, B.; Alcarria, R.; Robles, T.; Jara, A. Protecting Physical Communications in 5G C-RAN Architectures through Resonant Mechanisms in Optical Media. Sensors 2020, 20, 4104. https://doi.org/10.3390/s20154104

AMA Style

Bordel Sánchez B, Alcarria R, Robles T, Jara A. Protecting Physical Communications in 5G C-RAN Architectures through Resonant Mechanisms in Optical Media. Sensors. 2020; 20(15):4104. https://doi.org/10.3390/s20154104

Chicago/Turabian Style

Bordel Sánchez, Borja, Ramón Alcarria, Tomás Robles, and Antonio Jara. 2020. "Protecting Physical Communications in 5G C-RAN Architectures through Resonant Mechanisms in Optical Media" Sensors 20, no. 15: 4104. https://doi.org/10.3390/s20154104

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