A Novel Polar-Coded Probabilistic Shaping Scheme for Optical DMT Interconnection

Hao Shi; Hailian He; Shaotong Huang; Haiyun Yu; Jiafei Fan; Wenhao Lei; Ze Dong

doi:10.1109/LPT.2022.3221443

A Novel Polar-Coded Probabilistic Shaping Scheme for Optical DMT Interconnection

Hao Shi, Hailian He, Shaotong Huang, Haiyun Yu, Jiafei Fan, Wenhao Lei, Ze Dong^*

^*Corresponding author for this work

School of Information and Electronics

Research output: Contribution to journal › Article › peer-review

3 Citations (Scopus)

Abstract

A novel bit-oriented probabilistic shaping (PS) scheme based on polar-coded bit weight reconstruction (BWR) is proposed and experimentally demonstrated in an intensity modulation and direct-detection optical discrete multi-tone (DMT) interconnection. The BWR is utilized to enhance the weight of bit '0' by dynamic frozen bits shaping in a systematic-like polar encode processing. Compared with the probability-oriented PS schemes employing distribution matcher (DM) with high computational complexity and PS redundancy, and the symbol-oriented ones based on many-to-one mapping with overlapped symbol demapping difficulty, the proposed bit-oriented PS scheme is with the advantages of relatively lower complexity decoder and shaping redundancy-free profile. The experimental results show that 1.34-dB improvement for receiver power sensitivity and 2.52-dB enhancement for systematic tolerance to optical fiber nonlinear effect can be obtained by the polar-coded PS-16QAM DMT signals compared with the unshaped ones in a 5-km optical DMT interconnection system.

Original language	English
Pages (from-to)	144-147
Number of pages	4
Journal	IEEE Photonics Technology Letters
Volume	35
Issue number	3
DOIs	https://doi.org/10.1109/LPT.2022.3221443
Publication status	Published - 1 Feb 2023

Keywords

DMT
Probabilistic shaping
bit weight reconstruction
optical interconnection
polar encoder

Access to Document

10.1109/LPT.2022.3221443

Cite this

@article{dff60dfb14a14937bc03cb486f71c61e,

title = "A Novel Polar-Coded Probabilistic Shaping Scheme for Optical DMT Interconnection",

abstract = "A novel bit-oriented probabilistic shaping (PS) scheme based on polar-coded bit weight reconstruction (BWR) is proposed and experimentally demonstrated in an intensity modulation and direct-detection optical discrete multi-tone (DMT) interconnection. The BWR is utilized to enhance the weight of bit '0' by dynamic frozen bits shaping in a systematic-like polar encode processing. Compared with the probability-oriented PS schemes employing distribution matcher (DM) with high computational complexity and PS redundancy, and the symbol-oriented ones based on many-to-one mapping with overlapped symbol demapping difficulty, the proposed bit-oriented PS scheme is with the advantages of relatively lower complexity decoder and shaping redundancy-free profile. The experimental results show that 1.34-dB improvement for receiver power sensitivity and 2.52-dB enhancement for systematic tolerance to optical fiber nonlinear effect can be obtained by the polar-coded PS-16QAM DMT signals compared with the unshaped ones in a 5-km optical DMT interconnection system.",

keywords = "DMT, Probabilistic shaping, bit weight reconstruction, optical interconnection, polar encoder",

author = "Hao Shi and Hailian He and Shaotong Huang and Haiyun Yu and Jiafei Fan and Wenhao Lei and Ze Dong",

note = "Publisher Copyright: {\textcopyright} 1989-2012 IEEE.",

year = "2023",

month = feb,

day = "1",

doi = "10.1109/LPT.2022.3221443",

language = "English",

volume = "35",

pages = "144--147",

journal = "IEEE Photonics Technology Letters",

issn = "1041-1135",

publisher = "Institute of Electrical and Electronics Engineers Inc.",

number = "3",

}

TY - JOUR

T1 - A Novel Polar-Coded Probabilistic Shaping Scheme for Optical DMT Interconnection

AU - Shi, Hao

AU - He, Hailian

AU - Huang, Shaotong

AU - Yu, Haiyun

AU - Fan, Jiafei

AU - Lei, Wenhao

AU - Dong, Ze

PY - 2023/2/1

Y1 - 2023/2/1

N2 - A novel bit-oriented probabilistic shaping (PS) scheme based on polar-coded bit weight reconstruction (BWR) is proposed and experimentally demonstrated in an intensity modulation and direct-detection optical discrete multi-tone (DMT) interconnection. The BWR is utilized to enhance the weight of bit '0' by dynamic frozen bits shaping in a systematic-like polar encode processing. Compared with the probability-oriented PS schemes employing distribution matcher (DM) with high computational complexity and PS redundancy, and the symbol-oriented ones based on many-to-one mapping with overlapped symbol demapping difficulty, the proposed bit-oriented PS scheme is with the advantages of relatively lower complexity decoder and shaping redundancy-free profile. The experimental results show that 1.34-dB improvement for receiver power sensitivity and 2.52-dB enhancement for systematic tolerance to optical fiber nonlinear effect can be obtained by the polar-coded PS-16QAM DMT signals compared with the unshaped ones in a 5-km optical DMT interconnection system.

AB - A novel bit-oriented probabilistic shaping (PS) scheme based on polar-coded bit weight reconstruction (BWR) is proposed and experimentally demonstrated in an intensity modulation and direct-detection optical discrete multi-tone (DMT) interconnection. The BWR is utilized to enhance the weight of bit '0' by dynamic frozen bits shaping in a systematic-like polar encode processing. Compared with the probability-oriented PS schemes employing distribution matcher (DM) with high computational complexity and PS redundancy, and the symbol-oriented ones based on many-to-one mapping with overlapped symbol demapping difficulty, the proposed bit-oriented PS scheme is with the advantages of relatively lower complexity decoder and shaping redundancy-free profile. The experimental results show that 1.34-dB improvement for receiver power sensitivity and 2.52-dB enhancement for systematic tolerance to optical fiber nonlinear effect can be obtained by the polar-coded PS-16QAM DMT signals compared with the unshaped ones in a 5-km optical DMT interconnection system.

KW - DMT

KW - Probabilistic shaping

KW - bit weight reconstruction

KW - optical interconnection

KW - polar encoder

UR - http://www.scopus.com/inward/record.url?scp=85144746258&partnerID=8YFLogxK

U2 - 10.1109/LPT.2022.3221443

DO - 10.1109/LPT.2022.3221443

M3 - Article

AN - SCOPUS:85144746258

SN - 1041-1135

VL - 35

SP - 144

EP - 147

JO - IEEE Photonics Technology Letters

JF - IEEE Photonics Technology Letters

IS - 3

ER -

A Novel Polar-Coded Probabilistic Shaping Scheme for Optical DMT Interconnection

Abstract

Keywords

Access to Document

Other files and links

Fingerprint

Cite this