Interplay between fiber nonlinearity and probabilistic amplitude shaping
department or school: Applied Science, Faculty of
department or school: Electrical and Computer Engineering, Department of
data provider: DSpace
degree campus: UBCV
creator: Askari, Mohammad Taha
issued: 2023-09-30T07:00:00Z
issued: 2022
related degree: Master of Applied Science - MASc
degree grantor: University of British Columbia
description: The maximum information rate of a communication channel, often referred to as the Shannon capacity, is achieved by optimizing the distribution of the transmitted symbols. Probabilistic constellation shaping is one principled approach to perform this optimization. Its fairly recently developed variant known as Probabilistic Amplitude Shaping (PAS) is of particular interest as it combines constellation shaping and error-correction coding. Conventional shaping methods, including PAS, are typically designed for the Additive White Gaussian Noise (AWGN) channel, or more generally, for linear channels. However, in optical fiber communications, the main bottleneck for increasing data rate is the so-called Kerr nonlinear effect, establishing an overall nonlinear channel. Therefore, the proper understanding of the nonlinear behavior of the optical channel and the development of nonlinearity tolerant PAS have been active areas of research. This thesis revisits the interplay between channel nonlinearity and PAS. We derive an effective linear channel model for the interaction of transmitted symbol energy sequences and the nonlinear distortion. Based on this, we introduce a visualization tool for nonlinearity analysis which permits us to explain several phenomenological observations reported in previous works. Furthermore, we develop a new nonlinearity tolerant PAS scheme, which outperforms state-of-the-art methods by a significant margin.
aggregated CHO: https://circle.library.ubc.ca/rest/handle/2429/82624
note: Interplay between Fiber Nonlinearity andProbabilistic Amplitude ShapingbyMohammad Taha AskariB.Sc., Sharif University of Technology, 2015a thesis submitted in partial fulfillmentof the requirements for the degree ofMaster of Applied Scienceinthe faculty of graduate and postdoctoralstudies(Electrical and Computer Engineering)The University of British Columbia(Vancouver)August 2022© Mohammad Taha Askari, 2022The following individuals certify that they have read, and recommend tothe Faculty of Graduate and Postdoctoral Studies for acceptance, the thesisentitled:Interplay between Fiber Nonlinearity and Probabilistic Am-plitude Shapingsubmitted by Mohammad Taha Askari in partial fulfillment of the re-quirements for the degree of Master of Applied Science in Electricaland Computer Engineering.Examining Committee:Lutz Lampe, Professor, Electrical and Computer Engineering, UBCSupervisorIan Blake, Honorary Professor, Electrical and Computer Engineering, UBCSupervisory Committee MemberLele Wang, Assistant Professor, Electrical and Computer Engineering, UBCSupervisory Committee MemberiiAbstractThe maximum information rate of a communication channel, often referredto as the Shannon capacity, is achieved by optimizing the distribution of thetransmitted symbols. Probabilistic constellation shaping is one principledapproach to perform this optimization. Its fairly recently developed variantknown as Probabilistic Amplitude Shaping (PAS) is of particular interest asit combines constellation shaping and error-correction coding. Conventionalshaping methods, including PAS, are typically designed for the AdditiveWhite Gaussian Noise (AWGN) channel, or more generally, for linear chan-nels. However, in optical fiber communications, the main bottleneck forincreasing data rate is the so-called Kerr nonlinear effect, establishing anoverall nonlinear channel. Therefore, the proper understanding of the non-linear behavior of the optical channel and the development of nonlinearitytolerant PAS h…
has type: Thesis/Dissertation
date issued: 2022-11
is shown at: 10.14288/1.0418426
language: eng
degree discipline: Electrical and Computer Engineering
provider: Vancouver : University of British Columbia Library
publisher: University of British Columbia
rights: Attribution-NonCommercial-NoDerivatives 4.0 International
rights URI: http://creativecommons.org/licenses/by-nc-nd/4.0/
scholar level: Graduate
contributor: Lampe, Lutz
type: Text
identifier URI: http://hdl.handle.net/2429/82624