QoT Assessment of the Optical Spectrum as a Service in Disaggregated Network Scenarios

07/13/2021
by   Kaida Kaeval, et al.
0

The potential to operate third-party terminals over multi-domain transparent optical networks attracts operators and customers to implement Optical Spectrum as a Service (OSaaS). As infrastructure information cannot always be shared with OSaaS end customers, alternatives to off-line Quality of Transmission (QoT) estimation tools are required to assess the performance of the spectrum slot in order to estimate achievable throughput. In this paper, commercially available sliceable coherent transceivers are used to assess the Generalized Signal To Noise Ratio (GSNR) based QoT of the OSaaS in a live production network for both, narrow-band and wide-band OSaaS configurations. Extended channel probing based on symbol rate variability is combined with spectral sweeping and operation regime detection to characterize OSaaS implementations on 17 links with different underlying infrastructure configurations in order to maximize capacity and increase service margins in a low-margin operation regime. We achieve 0.05 dB estimation accuracy in GSNR for a wide-band spectrum services and 0.32 dB accuracy for narrow-band spectrum services. Based on the GSNR profile, spectral misalignment, spectral ripple, and operation regime are detected and service margin improvements are demonstrated. Finally, we discuss the network optimization perspective based on acquired data from channel probing and propose use-cases for continuous channel probing in transparent optical networks.

READ FULL TEXT

Authors

07/13/2021

Exploring Channel Probing to Determine Coherent Optical Transponder Configurations in a Long-Haul Network

We use channel probing to determine the best transponder configurations ...
09/06/2021

Black-Box Assessment of Optical Spectrum Services

A spectral sweep process is introduced to discover performance issues in...
07/13/2021

Channel Performance Estimations with Extended Channel Probing

We test the concept of extended channel probing in an Optical Spectrum a...
01/06/2020

Price Competition with LTE-U and WiFi

LTE-U is an extension of the Long Term Evolution (LTE) standard for oper...
06/07/2021

SNR optimization of multi-span fiber optic communication systems employing EDFAs with non-flat gain and noise figure

Throughput optimization of optical communication systems is a key challe...
04/21/2020

Adaptive Channel-Matched Detection for C-Band 64-Gbit/s Optical OOK System over 100-km Dispersion-Uncompensated Link

In this paper, we propose adaptive channel-matched detection (ACMD) for ...
12/07/2018

New Findings about Multi Conductor Noise in Narrow Band PLC

The market projection for Internet of Things (IoT) systems is appealing ...
This week in AI

Get the week's most popular data science and artificial intelligence research sent straight to your inbox every Saturday.