Capacity and Achievable Rates of Fading Few-mode MIMO IM/DD Optical Fiber Channels

Metodi P. Yankov; Francesco Da Ros; Søren Forchhammer; Lars Gruner-Nielsen

doi:10.1109/ICC45855.2022.9838629

Capacity and Achievable Rates of Fading Few-mode MIMO IM/DD Optical Fiber Channels

Metodi P. Yankov, Francesco Da Ros, Søren Forchhammer, Lars Gruner-Nielsen

Research output: Chapter in Book/Report/Conference proceeding › Article in proceedings › Research › peer-review

Abstract

The optical fiber multiple-input multiple-output (MIMO) channel with intensity modulation and direct detection (IM/DD) per spatial path is treated. The spatial dimensions represent the multiple modes employed for transmission and the cross-talk between them originates in the multiplexers and demultiplexers, which are polarization dependent and thus time-varying. The upper bounds from free-space IM/DD MIMO channels are adapted to the fiber case, and the constellation constrained capacity is constructively estimated using the Blahut-Arimoto algorithm. An autoencoder is then proposed to optimize a practical MIMO transmission in terms of pre-coder and detector assuming channel distribution knowledge at the transmitter. The pre-coders are shown to be robust to changes in the channel.

Original language	English
Title of host publication	Proceedings of IEEE International Conference on Communications
Publisher	IEEE
Publication date	2022
Pages	769-774
ISBN (Print)	9781538683477
DOIs	https://doi.org/10.1109/ICC45855.2022.9838629
Publication status	Published - 2022
Event	2022 IEEE International Conference on Communications - Coex, Seoul, Korea, Republic of Duration: 16 May 2022 → 20 May 2022 https://icc2022.ieee-icc.org/

Conference

Conference	2022 IEEE International Conference on Communications
Location	Coex
Country/Territory	Korea, Republic of
City	Seoul
Period	16/05/2022 → 20/05/2022
Internet address	https://icc2022.ieee-icc.org/

Keywords

Few-mode fiber
MIMO
Intensity modulation
Direct detection
Capacity
Autoencoder

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10.1109/ICC45855.2022.9838629

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title = "Capacity and Achievable Rates of Fading Few-mode MIMO IM/DD Optical Fiber Channels",

abstract = "The optical fiber multiple-input multiple-output (MIMO) channel with intensity modulation and direct detection (IM/DD) per spatial path is treated. The spatial dimensions represent the multiple modes employed for transmission and the cross-talk between them originates in the multiplexers and demultiplexers, which are polarization dependent and thus time-varying. The upper bounds from free-space IM/DD MIMO channels are adapted to the fiber case, and the constellation constrained capacity is constructively estimated using the Blahut-Arimoto algorithm. An autoencoder is then proposed to optimize a practical MIMO transmission in terms of pre-coder and detector assuming channel distribution knowledge at the transmitter. The pre-coders are shown to be robust to changes in the channel.",

keywords = "Few-mode fiber, MIMO, Intensity modulation, Direct detection, Capacity, Autoencoder",

author = "Yankov, {Metodi P.} and {Da Ros}, Francesco and S{\o}ren Forchhammer and Lars Gruner-Nielsen",

year = "2022",

doi = "10.1109/ICC45855.2022.9838629",

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booktitle = "Proceedings of IEEE International Conference on Communications",

publisher = "IEEE",

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note = "2022 IEEE International Conference on Communications, ICC 2022 ; Conference date: 16-05-2022 Through 20-05-2022",

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}

Yankov, MP , Da Ros, F , Forchhammer, S & Gruner-Nielsen, L 2022, Capacity and Achievable Rates of Fading Few-mode MIMO IM/DD Optical Fiber Channels. in Proceedings of IEEE International Conference on Communications. IEEE, pp. 769-774, 2022 IEEE International Conference on Communications, Seoul, Korea, Republic of, 16/05/2022. https://doi.org/10.1109/ICC45855.2022.9838629

TY - GEN

T1 - Capacity and Achievable Rates of Fading Few-mode MIMO IM/DD Optical Fiber Channels

AU - Yankov, Metodi P.

AU - Da Ros, Francesco

AU - Forchhammer, Søren

AU - Gruner-Nielsen, Lars

PY - 2022

Y1 - 2022

N2 - The optical fiber multiple-input multiple-output (MIMO) channel with intensity modulation and direct detection (IM/DD) per spatial path is treated. The spatial dimensions represent the multiple modes employed for transmission and the cross-talk between them originates in the multiplexers and demultiplexers, which are polarization dependent and thus time-varying. The upper bounds from free-space IM/DD MIMO channels are adapted to the fiber case, and the constellation constrained capacity is constructively estimated using the Blahut-Arimoto algorithm. An autoencoder is then proposed to optimize a practical MIMO transmission in terms of pre-coder and detector assuming channel distribution knowledge at the transmitter. The pre-coders are shown to be robust to changes in the channel.

AB - The optical fiber multiple-input multiple-output (MIMO) channel with intensity modulation and direct detection (IM/DD) per spatial path is treated. The spatial dimensions represent the multiple modes employed for transmission and the cross-talk between them originates in the multiplexers and demultiplexers, which are polarization dependent and thus time-varying. The upper bounds from free-space IM/DD MIMO channels are adapted to the fiber case, and the constellation constrained capacity is constructively estimated using the Blahut-Arimoto algorithm. An autoencoder is then proposed to optimize a practical MIMO transmission in terms of pre-coder and detector assuming channel distribution knowledge at the transmitter. The pre-coders are shown to be robust to changes in the channel.

KW - Few-mode fiber

KW - MIMO

KW - Intensity modulation

KW - Direct detection

KW - Capacity

KW - Autoencoder

U2 - 10.1109/ICC45855.2022.9838629

DO - 10.1109/ICC45855.2022.9838629

M3 - Article in proceedings

SN - 9781538683477

SP - 769

EP - 774

BT - Proceedings of IEEE International Conference on Communications

PB - IEEE

T2 - 2022 IEEE International Conference on Communications

Y2 - 16 May 2022 through 20 May 2022

ER -

Capacity and Achievable Rates of Fading Few-mode MIMO IM/DD Optical Fiber Channels

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Conference

Keywords

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