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A Meta-Learning-Assisted Training Framework for Physical Layer Modeling in Optical Networks

An accurate quality of transmission (QoT) estimation can help to reduce the design margin of optical network planning. The physical layer impairments (PLI) modeling can be the basis of QoT estimation and support upper layer applications. Due to the complex structure of the physical layer and imperfect knowledge of network parameters, improving PLI modeling performance is hindered by the parameter uncertainty. The parameter uncertainty can be alleviated by online adaptation using data from the real system. However, obtaining the accurate value of each PLI is difficult since multiple impairments co-exist in the optical system. Therefore, updating PLI models with online adaptation is difficult, which requires PLI models with higher robustness to parameter uncertainty and more efficient adaptation ability with limited data from real systems. In this paper, we propose a meta-learning-assisted training framework for machine-learning-based physical layer models. This framework can improve the model robustness to agnostic uncertain parameters during offline training and enables the model to efficiently adapt to the real system with fewer data. Use cases of dealing with parameter uncertainty in fiber nonlinearity modeling and QoT estimation are performed to prove the concept through simulations, which demonstrates the robustness improvement and few-shot learning ability.

Ketersediaan

Informasi Detail

Judul Seri

JOURNAL OF LIGHTWAVE TECHNOLOGY; Vol.40 No.9 May 1 2022

No. Panggil

-

Penerbit

: .,

Deskripsi Fisik

p. 2684-2695

Bahasa

English

ISBN/ISSN

-

Klasifikasi

NONE

Tipe Isi

-

Tipe Media

-

Tipe Pembawa

-

Edisi

-

Subjek

ONLINE LEARNING
META LEARNING
PHYSICAL LAYER MODELING
FIBER NONLINEARITY MODELING

Info Detail Spesifik

DOI: 10.1109/JLT.2022.3146025

Pernyataan Tanggungjawab

Xiaomin Liu, Huazhi Lun, Lei Liu, Yihao Zhang, Yichen Liu, Lilin Yi, Weisheng Hu, Qunbi Zhuge

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