Information rates for the SP 128-QAM and DP 16-QAM modulation formats

Kashi, Aazar Saadaat; Cartledge, J.C.; Bakhshali, Ali; Rezania, A.; El-Rahman, Ahmed I. Abd; O’Sullivan, Maurice; Laperle, Charles; Borowiec, A.; Roberts, Kim

doi:10.1109/ecoc.2015.7341640

“…Often in these transponders, the same FEC is used as a separate subsystem for different formats. In order to make a fair comparison against PM-16QAM (8 bits/4D-sym) for the same coding rate, we followed the methodology in [38], [39], i.e., we reduce the symbol rate by 1/8 (from 41.79 GBd to 36.57 GBd). This symbol rate reduction makes the net data rate of the considered equal for any given coding rate.…”

Section: D-os128 Vs Other Formats and Probabilistic Shapingmentioning

confidence: 99%

Analysis and Experimental Demonstration of Orthant-Symmetric Four-Dimensional 7 bit/4D-Sym Modulation for Optical Fiber Communication

Chen

¹

,

Alvarado

²

,

Heide

³

et al. 2021

J. Lightwave Technol.

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published version features the final layout of the paper including the volume, issue and page numbers. Link to publication General rightsCopyright and moral rights for the publications made accessible in the public portal are retained by the authors and/or other copyright owners and it is a condition of accessing publications that users recognise and abide by the legal requirements associated with these rights.• Users may download and print one copy of any publication from the public portal for the purpose of private study or research. • You may not further distribute the material or use it for any profit-making activity or commercial gain • You may freely distribute the URL identifying the publication in the public portal.If the publication is distributed under the terms of Article 25fa of the Dutch Copyright Act, indicated by the "Taverne" license above, please follow below link for the End User

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“…16QAM (128SP-QAM) [55], [56], [57]. 4D set-partitioned formats based on the D 4 lattice have also been investigated by using multilevel coding and multi-stage decoding [39].…”

Section: Introductionmentioning

confidence: 99%

Geometrically-Shaped Multi-Dimensional Modulation Formats in Coherent Optical Transmission Systems

Chen¹,

Lei²,

Liga³

et al. 2023

J. Lightwave Technol.

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published version features the final layout of the paper including the volume, issue and page numbers. Link to publication General rightsCopyright and moral rights for the publications made accessible in the public portal are retained by the authors and/or other copyright owners and it is a condition of accessing publications that users recognise and abide by the legal requirements associated with these rights.• Users may download and print one copy of any publication from the public portal for the purpose of private study or research. • You may not further distribute the material or use it for any profit-making activity or commercial gain • You may freely distribute the URL identifying the publication in the public portal.If the publication is distributed under the terms of Article 25fa of the Dutch Copyright Act, indicated by the "Taverne" license above, please follow below link for the End User

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“…The use of DP-QAM modulation levels is common because it can protect against linear and nonlinear effects in optical fibers while still meeting the growing demand for greater spectral efficiency and capacity [10]. Polarization in opposite directions QAM allows for a greater bit-per-symbol rate, which in turn allows for more effective spectrum usage [11].…”

Section: Introductionmentioning

confidence: 99%

Experimental investigation and comparison of modulation types for high capacity broadband transmission system to support (5G) networks

Morozov,

Almufti

2023

Optical Technologies for Telecommunications 2022

0

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In this paper, the types of modulation that support high-capacity transmission in 5G networks and beyond are discussed. Different types of digital modulation (DP-PSK , DP-QAM) and their impact on the quality of received bits are discussed. Appropriate methods are suggested for transmitting the signal for distances up to 200 km and with an acceptable number of bit errors per unit time (BER) with acceptable values of acceptable values of signal power to the noise power, (SNR) ratio . with totally transmission bit rate approximately 6.4Tb/s . So , We describe the architecture of passive optical networks with coherent wavelength division multiplexing (PONs) Which helps to support fifth generation networks and beyond.

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Information rates for the SP 128-QAM and DP 16-QAM modulation formats

Cited by 7 publications

References 7 publications

Analysis and Experimental Demonstration of Orthant-Symmetric Four-Dimensional 7 bit/4D-Sym Modulation for Optical Fiber Communication

Analysis and Experimental Demonstration of Orthant-Symmetric Four-Dimensional 7 bit/4D-Sym Modulation for Optical Fiber Communication

Geometrically-Shaped Multi-Dimensional Modulation Formats in Coherent Optical Transmission Systems

Experimental investigation and comparison of modulation types for high capacity broadband transmission system to support (5G) networks

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