ADC/DAC resolution tolerance improvement by implementing probabilistic shaping distributions in PAM and QAM modulation schemes

Xiao Han; Yang Yue; Zhen Qu; Ryan Holmes; Ivan B. Djordjevic

doi:10.1117/12.2583215

ADC/DAC resolution tolerance improvement by implementing probabilistic shaping distributions in PAM and QAM modulation schemes

Xiao Han, Yang Yue, Zhen Qu, Ryan Holmes, Ivan B. Djordjevic

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

1 Scopus citations

Abstract

In this paper, we simulated the ADC/DAC resolution tolerance improvement by implementing probabilistic shaping (PS) distributions in PAM and QAM modulation schemes for 400G and 800G transmissions. We compared PS- and uniformdistributed PM-16QAM, PM-32QAM, and PM-64QAM performance in 800G coherent transmission in FR links. The PS distribution scheme is based on Maxwell-Boltzmann distribution, and 0.1378 FEC overhead is chosen. We demonstrate that for any of these modulation schemes the post-BER (post-FEC bit-error rate) performance is more sensitive to ADC resolution. Moreover, the application of PS distribution can offer us 0.5-dB improvement in received optical power (ROP) for LDPC-coded PM-16QAM and 0.7-dB improvement for PM-32QAM, while PM-64QAM can get 0.6-dB improvement in ROP. For PAM transmission, we simulated a 4-channel CWDM 400G transmission system with wavelengths 1271 nm, 1291 nm, 1311 nm, and 1331 nm for 4-PAM modulation scheme. The PS distribution scheme we used in PAM is exponential distribution, and the FEC overhead is also 0.1378. We demonstrated that the pre-SER (pre-FEC symbol-error rate) performance is also more sensitive to the ADC resolution compared to DAC resolution. Therefore, the PS LPDCcoded modulation represents a great candidate to improve the system performance and reduce the cost.

Original language	English (US)
Title of host publication	Metro and Data Center Optical Networks and Short-Reach Links IV
Editors	Atul K. Srivastava, Madeleine Glick, Youichi Akasaka
Publisher	SPIE
ISBN (Electronic)	9781510642591
DOIs	https://doi.org/10.1117/12.2583215
State	Published - 2021
Event	Metro and Data Center Optical Networks and Short-Reach Links IV 2021 - Virtual, Online, United States Duration: Mar 6 2021 → Mar 11 2021

Publication series

Name	Proceedings of SPIE - The International Society for Optical Engineering
Volume	11712
ISSN (Print)	0277-786X
ISSN (Electronic)	1996-756X

Conference

Conference	Metro and Data Center Optical Networks and Short-Reach Links IV 2021
Country/Territory	United States
City	Virtual, Online
Period	3/6/21 → 3/11/21

Keywords

400G CWDM transmission
800G
DAC/ADC resolution
PAM4
PM-16QAM
PM-32QAM
PM-64QAM
PS distribution
coherent detection

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Condensed Matter Physics
Computer Science Applications
Applied Mathematics
Electrical and Electronic Engineering

Access to Document

10.1117/12.2583215

Cite this

Han, X., Yue, Y., Qu, Z., Holmes, R., & Djordjevic, I. B. (2021). ADC/DAC resolution tolerance improvement by implementing probabilistic shaping distributions in PAM and QAM modulation schemes. In A. K. Srivastava, M. Glick, & Y. Akasaka (Eds.), Metro and Data Center Optical Networks and Short-Reach Links IV Article 117120N (Proceedings of SPIE - The International Society for Optical Engineering; Vol. 11712). SPIE. https://doi.org/10.1117/12.2583215

ADC/DAC resolution tolerance improvement by implementing probabilistic shaping distributions in PAM and QAM modulation schemes. / Han, Xiao; Yue, Yang; Qu, Zhen et al.
Metro and Data Center Optical Networks and Short-Reach Links IV. ed. / Atul K. Srivastava; Madeleine Glick; Youichi Akasaka. SPIE, 2021. 117120N (Proceedings of SPIE - The International Society for Optical Engineering; Vol. 11712).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Han, X, Yue, Y, Qu, Z, Holmes, R & Djordjevic, IB 2021, ADC/DAC resolution tolerance improvement by implementing probabilistic shaping distributions in PAM and QAM modulation schemes. in AK Srivastava, M Glick & Y Akasaka (eds), Metro and Data Center Optical Networks and Short-Reach Links IV., 117120N, Proceedings of SPIE - The International Society for Optical Engineering, vol. 11712, SPIE, Metro and Data Center Optical Networks and Short-Reach Links IV 2021, Virtual, Online, United States, 3/6/21. https://doi.org/10.1117/12.2583215

Han X, Yue Y, Qu Z, Holmes R, Djordjevic IB. ADC/DAC resolution tolerance improvement by implementing probabilistic shaping distributions in PAM and QAM modulation schemes. In Srivastava AK, Glick M, Akasaka Y, editors, Metro and Data Center Optical Networks and Short-Reach Links IV. SPIE. 2021. 117120N. (Proceedings of SPIE - The International Society for Optical Engineering). doi: 10.1117/12.2583215

Han, Xiao ; Yue, Yang ; Qu, Zhen et al. / ADC/DAC resolution tolerance improvement by implementing probabilistic shaping distributions in PAM and QAM modulation schemes. Metro and Data Center Optical Networks and Short-Reach Links IV. editor / Atul K. Srivastava ; Madeleine Glick ; Youichi Akasaka. SPIE, 2021. (Proceedings of SPIE - The International Society for Optical Engineering).

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title = "ADC/DAC resolution tolerance improvement by implementing probabilistic shaping distributions in PAM and QAM modulation schemes",

abstract = "In this paper, we simulated the ADC/DAC resolution tolerance improvement by implementing probabilistic shaping (PS) distributions in PAM and QAM modulation schemes for 400G and 800G transmissions. We compared PS- and uniformdistributed PM-16QAM, PM-32QAM, and PM-64QAM performance in 800G coherent transmission in FR links. The PS distribution scheme is based on Maxwell-Boltzmann distribution, and 0.1378 FEC overhead is chosen. We demonstrate that for any of these modulation schemes the post-BER (post-FEC bit-error rate) performance is more sensitive to ADC resolution. Moreover, the application of PS distribution can offer us 0.5-dB improvement in received optical power (ROP) for LDPC-coded PM-16QAM and 0.7-dB improvement for PM-32QAM, while PM-64QAM can get 0.6-dB improvement in ROP. For PAM transmission, we simulated a 4-channel CWDM 400G transmission system with wavelengths 1271 nm, 1291 nm, 1311 nm, and 1331 nm for 4-PAM modulation scheme. The PS distribution scheme we used in PAM is exponential distribution, and the FEC overhead is also 0.1378. We demonstrated that the pre-SER (pre-FEC symbol-error rate) performance is also more sensitive to the ADC resolution compared to DAC resolution. Therefore, the PS LPDCcoded modulation represents a great candidate to improve the system performance and reduce the cost.",

keywords = "400G CWDM transmission, 800G, DAC/ADC resolution, PAM4, PM-16QAM, PM-32QAM, PM-64QAM, PS distribution, coherent detection",

author = "Xiao Han and Yang Yue and Zhen Qu and Ryan Holmes and Djordjevic, {Ivan B.}",

note = "Publisher Copyright: {\textcopyright} 2021 SPIE.; Metro and Data Center Optical Networks and Short-Reach Links IV 2021 ; Conference date: 06-03-2021 Through 11-03-2021",

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AU - Yue, Yang

AU - Qu, Zhen

AU - Holmes, Ryan

AU - Djordjevic, Ivan B.

PY - 2021

Y1 - 2021

N2 - In this paper, we simulated the ADC/DAC resolution tolerance improvement by implementing probabilistic shaping (PS) distributions in PAM and QAM modulation schemes for 400G and 800G transmissions. We compared PS- and uniformdistributed PM-16QAM, PM-32QAM, and PM-64QAM performance in 800G coherent transmission in FR links. The PS distribution scheme is based on Maxwell-Boltzmann distribution, and 0.1378 FEC overhead is chosen. We demonstrate that for any of these modulation schemes the post-BER (post-FEC bit-error rate) performance is more sensitive to ADC resolution. Moreover, the application of PS distribution can offer us 0.5-dB improvement in received optical power (ROP) for LDPC-coded PM-16QAM and 0.7-dB improvement for PM-32QAM, while PM-64QAM can get 0.6-dB improvement in ROP. For PAM transmission, we simulated a 4-channel CWDM 400G transmission system with wavelengths 1271 nm, 1291 nm, 1311 nm, and 1331 nm for 4-PAM modulation scheme. The PS distribution scheme we used in PAM is exponential distribution, and the FEC overhead is also 0.1378. We demonstrated that the pre-SER (pre-FEC symbol-error rate) performance is also more sensitive to the ADC resolution compared to DAC resolution. Therefore, the PS LPDCcoded modulation represents a great candidate to improve the system performance and reduce the cost.

AB - In this paper, we simulated the ADC/DAC resolution tolerance improvement by implementing probabilistic shaping (PS) distributions in PAM and QAM modulation schemes for 400G and 800G transmissions. We compared PS- and uniformdistributed PM-16QAM, PM-32QAM, and PM-64QAM performance in 800G coherent transmission in FR links. The PS distribution scheme is based on Maxwell-Boltzmann distribution, and 0.1378 FEC overhead is chosen. We demonstrate that for any of these modulation schemes the post-BER (post-FEC bit-error rate) performance is more sensitive to ADC resolution. Moreover, the application of PS distribution can offer us 0.5-dB improvement in received optical power (ROP) for LDPC-coded PM-16QAM and 0.7-dB improvement for PM-32QAM, while PM-64QAM can get 0.6-dB improvement in ROP. For PAM transmission, we simulated a 4-channel CWDM 400G transmission system with wavelengths 1271 nm, 1291 nm, 1311 nm, and 1331 nm for 4-PAM modulation scheme. The PS distribution scheme we used in PAM is exponential distribution, and the FEC overhead is also 0.1378. We demonstrated that the pre-SER (pre-FEC symbol-error rate) performance is also more sensitive to the ADC resolution compared to DAC resolution. Therefore, the PS LPDCcoded modulation represents a great candidate to improve the system performance and reduce the cost.

KW - 400G CWDM transmission

KW - 800G

KW - DAC/ADC resolution

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KW - PM-32QAM

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A2 - Srivastava, Atul K.

A2 - Glick, Madeleine

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Y2 - 6 March 2021 through 11 March 2021

ER -

ADC/DAC resolution tolerance improvement by implementing probabilistic shaping distributions in PAM and QAM modulation schemes

Abstract

Publication series

Conference

Keywords

ASJC Scopus subject areas

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