Physical Impairment Modelling in Flexible Optical Node Architectures ImpAr

Project: Physical Impairment Modelling in Flexible Optical Node Architectures

Acronym: ImpAr

Main Objective:
One major goal in this project is to develop an analytical formulation,as well as a stochastic Monte-Carlo (MC) simulator, that allow us to study in a rigorous way the impact of in-band crosstalk, both incoherent and coherent, originated in CDC ROADMs in the performance of flexible grid networks, considering 16-QAM and 64-QAM 400 Gbps signals.

On a network-side perspective, the emergence of modulation formats with higher-order constellations and, consequently, with stricter performance margins has
increased the importance of physical impairment awareness in the network planning process. Thus, it is essential to incorporate the effects of in-band
crosstalk, along with other effects, in an impairment-aware routing and spectrum assignment (RSA) framework. This framework should be able to efficiently
provision paths and spectrum for superchannels based on M-QAM carriers in a CDC-ROADM network, while using the physical model as a performance validation
tool for candidate optical paths.

Reference: uid/50008

Funding: IT/LA

Start Date: 01-07-2016

End Date: 01-07-2018

Team: Luís Gonçalo Lecoq Vences e Costa Cancela, João Lopes Rebola, João José de Oliveira Pires, Rui Miguel Neto Marinheiro, José André Rocha Sá e Moura, António Miguel Barata da Eira, João Manuel Ferreira Pedro, Nelson Manuel Simões Costa

Groups: Optical Communication Systems and Networking – Lx, Radio Systems – Lx

Partners: Coriant Portugal

Local Coordinator: Luís Gonçalo Lecoq Vences e Costa Cancela

United Nations Strategic Development Goal - Industry, Innovation and Infrastructure

Associated Publications

5Papers in Journals
D. G. Sequeira, L. Cancela, J. Rebola, CDC ROADM design tradeoffs due to physical layer impairments in optical networks, Optical Fiber Technology, Vol. 62, No. 102461, pp. 1 - 11, March, 2021 | Full text (PDF 2 MBs) | BibTex
P. Chentsho, L. Cancela, J. J. O. Pires, A framework for analyzing in-band crosstalk accumulation in ROADM-based optical networks, Optical Fiber Technology, Vol. 57, No. -, pp. 102238 - 102238, July, 2020,
| Abstract | BibTex
L. Cancela, J. J. O. Pires, Applying the skew-normal distribution to model coherent MPI and to evaluate its impact on PAM signals, Optical Fiber Technology, Vol. 56, No. -, pp. 102180 - 102180, May, 2020,
| Abstract | BibTex
J. M. Pedro, N. Costa, Optimized Hybrid Raman/EDFA Ampliﬁer Placement for DWDM Mesh Networks, Journal of Lightwave Technology, Vol. 36, No. 9, pp. 1552 - 1561, May, 2018,
| Abstract | BibTex
J. M. Pedro, Designing Transparent Flexible-Grid Optical Networks for Maximum Spectral Efficiency [Invited], Journal of Optical Communications and Networking, Vol. 9, No. 4, pp. C35 - C44, April, 2017,
| Abstract | BibTex

8Papers in Conferences
P. M. P. Marinho Pereira, J. Rebola, L. Cancela, Procedure to optimize the intercarrier spacing in superchannels impaired by the cascading of WSS-based ROADMs, Electro-Optic Society (EOS) EOS Annual Meeting EOSAM, Oporto, Portugal, September, 2020,
| Abstract | BibTex
A. Eira, A. M. F. P. Pereira, N. Costa, J. M. Pedro, J. J. O. Pires, On the Effect of In-Band Crosstalk Margins for Optimized Format Selection in Meshed Optical Networks, European Conference on Optical Communication ECOC, Dublin, Ireland, September, 2019,
| Abstract | BibTex
L. Cancela, J. J. O. Pires, How to Statistically Model Coherent MPI in Optical Communications ?, OSA Advanced Photonics Congress, Zurique, Switzerland, July, 2018,
| Abstract | Full text (PDF 296 KBs) | BibTex
D. G. Sequeira, L. Cancela, J. Rebola, Physical Layer Impairments in Cascaded Multi-Degree CDC ROADMs with NRZ and Nyquist Pulse Shaped Signals, ICETE International Conf. on Optical Communication Systems - OPTICS, Porto, Portugal, July, 2018,
| Abstract | Full text (PDF 506 KBs) | BibTex
J. M. Pedro, N. Costa, Strategies for Optimized Raman Amplification Deployment in DWDM Mesh Networks, International Conference on Transparent Optical Networks ICTON, Bucharest, Romania, July, 2018,
| Abstract | BibTex
D. G. Sequeira, L. Cancela, J. Rebola, Impact of Physical Layer Impairments on Multi-Degree CDC ROADM -based Optical Networks, International Conference on Optical Network Design and Modeling ONDM, Dublin, Ireland, May, 2018,
| Abstract | Full text (PDF 450 KBs) | BibTex
J. M. Pedro, S. Pato, ROADM Express Layer Design Strategies for Scalable and Cost-Effective Multi-Fibre DWDM Networks, International Conference on Transparent Optical Networks ICTON, Girona, Spain, Vol., pp. 1 - 7, July, 2017,
| Abstract | BibTex
J. J. O. Pires, L. Cancela, Investigating the Impact of Coherent Multipath Interference on Optical QPSK Systems, IEEE International Conference on Communications - ICC, Paris, France, Vol. Sem informação, pp. Sem informação - Sem informação, May, 2017 | Full text (PDF 181 KBs) | BibTex

3Thesis
Impact of in-band crosstalk on colorless, directionless, contentionless (CDC) ROADM-based flexible grid optical networks, ISCTE - Instituto Universitário de Lisboa, MSc Student, Diogo Gonçalo Sequeira, Supervisor: L. Cancela, Co-supervisor: J. Rebola, set-2015 - nov-2017
Super-channel transmission over flexible-grid optical networks, ISCTE - Instituto Universitário de Lisboa, MSc Student, Paulo José da Costa Marinho Pereira, Supervisor: J. Rebola, Co-supervisor: L. Cancela, out-2017 - dez-2019
Optical Network Planning for Dynamic Applications, ISCTE - Instituto Universitário de Lisboa, MSc Student, Carlos Jorge da Cruz Rodrigues, Supervisor: L. Cancela, Co-supervisor: J. Rebola, out-2016 - nov-2018

Project / ImpAr

Project: Physical Impairment Modelling in Flexible Optical Node Architectures