Paper Info
Title
Soft-Failure Localization and Time-Dependent Degradation Detection for Network Diagnosis
Abstract
In optical networks, degradation of the Quality of Transmission (QoT) can be the outcome of soft-failures in optical devices, like Optical Transponders, Wavelength Selective Switches (WSS) and Optical Amplifiers (OA). In this paper, we assume time-dependent degradations on ROADMs and OAs. Specifically, several degradations are considered: i) the noise figure can increase linearly over time due to the aging of the components; ii) the maximum of optical output power of the amplifiers can decrease because of the degradation in the pump lasers of the EDFAs; iii) aging effects, e.g., due to fiber splices; and iv) the OSNR can vary caused by frequency drift of WSSs due to temperature variations. Our proposal for degradation detection and soft-failure localization includes algorithms that are able to detect and localize the degradation in early stages and facilitate network diagnosis. In addition, we propose an architecture where the control plane consist of a network controller, a Monitoring and Data Analytics system and a QoT tool based on GNPy that are interconnected with each other.
Year
DOI
Venue
2020
10.1109/ICTON51198.2020.9203029
2020 22nd International Conference on Transparent Optical Networks (ICTON)
Keywords
DocType
ISSN
soft-failure localization,network diagnosis
Conference
2162-7339
ISBN
Citations 
PageRank 
978-1-7281-8423-4
0
0.34
References 
Authors
0
3
Name
Order
Citations
PageRank
Sima Barzegar132.82
Marc Ruiz201.01
Luis Velasco301.01