title: Experimental demonstration of a cognitive quality of transmission estimator for optical communication systems.
abstract: The impact of physical layer impairments in optical network design and operation has received significant attention in the last years, thereby requiring estimation techniques to predict the quality of transmission (QoT) of optical connections before being established. In this paper, we report on the experimental demonstration of a case-based reasoning (CBR) technique to predict whether optical channels fulfill QoT requirements, thus supporting impairment-aware networking. The validation of the cognitive QoT estimator is performed in a WDM 80 Gb/s PDM-QPSK testbed, and we demonstrate that even with a very small and not optimized underlying knowledge base, it achieves between 79% and 98.7% successful classifications based on the error vector magnitude (EVM) parameter, and approximately 100% when the classification is based on the optical signal to noise ratio (OSNR).
authors.affiliation: DTU Fotonik, Tech Univ of Denmark, DK-2800 Kgs Lyngby, Denmark. acaj@fotonik.dtu.dk
authors.forename: Antonio
authors.initials: A
authors.lastname: Caballero
authors.forename: Juan Carlos
authors.initials: JC
authors.lastname: Aguado
authors.forename: Robert
authors.initials: R
authors.lastname: Borkowski
authors.forename: Silvia
authors.initials: S
authors.lastname: Saldaña
authors.forename: Tamara
authors.initials: T
authors.lastname: Jiménez
authors.forename: Ignacio
authors.initials: I
authors.lastname: de Miguel
authors.forename: Valeria
authors.initials: V
authors.lastname: Arlunno
authors.forename: Ramón J
authors.initials: RJ
authors.lastname: Durán
authors.forename: Darko
authors.initials: D
authors.lastname: Zibar
authors.forename: Jesper B
authors.initials: JB
authors.lastname: Jensen
authors.forename: Rubén M
authors.initials: RM
authors.lastname: Lorenzo
authors.forename: Evaristo J
authors.initials: EJ
authors.lastname: Abril
authors.forename: Idelfonso Tafur
authors.initials: IT
authors.lastname: Monroy