Sequential Number-Theoretic Optimization for High-Dimensional Channel Equalization in Coherent Optical Communication Systems

In this paper, we propose to jointly estimate channel distortions including the transmitter and receiver in- phase/quadrature (IQ) mismatch, frequency offset (FO) and phase noise (PN) by sequential number-theoretic optimization (SNTO) in coherent optical communication systems. A decision-feedback si...

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Published in:Optoelectronics and Communications Conference pp. 1 - 3
Main Authors: Liu, Shuai, Yu, Keying, Xu, Yangfan, Du, Xinwei, Wang, Qian, Yu, Changyuan
Format: Conference Proceeding
Language:English
Published: IEEE 30.06.2024
Subjects:
Accuracy
Channel estimation
Estimation
frequency offset
Heuristic algorithms
In-phase/quadrature mismatch
Optical distortion
Optical fiber communication
Optimization
Phase noise
Robustness
sequential number-theoretic optimization
Signal detection
ISSN:2166-8892
Online Access:Get full text
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Abstract In this paper, we propose to jointly estimate channel distortions including the transmitter and receiver in- phase/quadrature (IQ) mismatch, frequency offset (FO) and phase noise (PN) by sequential number-theoretic optimization (SNTO) in coherent optical communication systems. A decision-feedback signal detection scheme is subsequently proposed after the joint estimation, which guarantees real-time estimation of the PN. The feasibility, accuracy and robustness of the proposed SNTO-based algorithm are verified via simulations.
AbstractList In this paper, we propose to jointly estimate channel distortions including the transmitter and receiver in- phase/quadrature (IQ) mismatch, frequency offset (FO) and phase noise (PN) by sequential number-theoretic optimization (SNTO) in coherent optical communication systems. A decision-feedback signal detection scheme is subsequently proposed after the joint estimation, which guarantees real-time estimation of the PN. The feasibility, accuracy and robustness of the proposed SNTO-based algorithm are verified via simulations.
Author Wang, Qian
Du, Xinwei
Liu, Shuai
Xu, Yangfan
Yu, Changyuan
Yu, Keying
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  givenname: Shuai
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  givenname: Keying
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  organization: BNU-HKBU United International College,Guangdong Provincial Key Laboratory of Interdisciplinary Research and Application for Data Science,Zhuhai,China,519087
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  givenname: Yangfan
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  organization: BNU-HKBU United International College,Guangdong Provincial Key Laboratory of Interdisciplinary Research and Application for Data Science,Zhuhai,China,519087
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  givenname: Xinwei
  surname: Du
  fullname: Du, Xinwei
  email: xinweidu@uic.edu.cn
  organization: BNU-HKBU United International College,Guangdong Provincial Key Laboratory of Interdisciplinary Research and Application for Data Science,Zhuhai,China,519087
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  givenname: Qian
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  fullname: Wang, Qian
  organization: Zhejiang University of Technology,College of Information Engineering,Hangzhou,China,310023
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  givenname: Changyuan
  surname: Yu
  fullname: Yu, Changyuan
  organization: The Hong Kong Polytechnic University,Photonics Research Institute,Department of Electrical and Electronic Engineering,Hong Kong
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Snippet In this paper, we propose to jointly estimate channel distortions including the transmitter and receiver in- phase/quadrature (IQ) mismatch, frequency offset...
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SubjectTerms Accuracy
Channel estimation
Estimation
frequency offset
Heuristic algorithms
In-phase/quadrature mismatch
Optical distortion
Optical fiber communication
Optimization
Phase noise
Robustness
sequential number-theoretic optimization
Signal detection
Title Sequential Number-Theoretic Optimization for High-Dimensional Channel Equalization in Coherent Optical Communication Systems
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