Physical layer security in fiber-optic MIMO-SDM systems: An overview

Autor: Kyle Guan, Junho Cho, Peter J. Winzer
Rok vydání: 2018
Předmět:
Zdroj: Optics Communications. 408:31-41
ISSN: 0030-4018
DOI: 10.1016/j.optcom.2017.07.078
Popis: Fiber-optic transmission systems provide large capacities over enormous distances but are vulnerable to simple eavesdropping attacks at the physical layer. We classify key-based and keyless encryption and physical layer security techniques and discuss them in the context of optical multiple-input-multiple-output space-division multiplexed (MIMO-SDM) fiber-optic communication systems. We show that MIMO-SDM not only increases system capacity, but also ensures the confidentiality of information transmission. Based on recent numerical and experimental results, we review how the unique channel characteristics of MIMO-SDM can be exploited to provide various levels of physical layer security.
Databáze: OpenAIRE