Nonbinary LDPC-coded modulation for rate-adaptive optical fiber communication Without bandwidth expansion

Murat Arabaci; Ivan B. Djordjevic; Lei Xu; Ting Wang

doi:10.1109/LPT.2012.2204973

Nonbinary LDPC-coded modulation for rate-adaptive optical fiber communication Without bandwidth expansion

Murat Arabaci, Ivan B. Djordjevic, Lei Xu, Ting Wang

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

20 Scopus citations

Abstract

A rate-adaptive nonbinary low-density parity-check-coded modulation scheme is proposed to enable fiber-optic transmission at variable bit rates by adjusting the spectral efficiency (SE) of transmission while keeping the occupied bandwidth fixed. To achieve a given SE within a fixed bandwidth, both the underlying signal constellation size and the forward error correction code rate are adjusted. Using the scarce resource of bandwidth more effectively, the proposed scheme is expected to find applications in both current fixed-grid networks and in future networks that might adopt flexible grid approach.

Original language	English (US)
Article number	6218753
Pages (from-to)	1402-1404
Number of pages	3
Journal	IEEE Photonics Technology Letters
Volume	24
Issue number	16
DOIs	https://doi.org/10.1109/LPT.2012.2204973
State	Published - 2012

Keywords

Forward error correction (FEC)
nonbinary low-density parity-check (LDPC) codes
optical fiber communication
rate-adaptive coded modulation

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Atomic and Molecular Physics, and Optics
Electrical and Electronic Engineering

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10.1109/LPT.2012.2204973

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title = "Nonbinary LDPC-coded modulation for rate-adaptive optical fiber communication Without bandwidth expansion",

abstract = "A rate-adaptive nonbinary low-density parity-check-coded modulation scheme is proposed to enable fiber-optic transmission at variable bit rates by adjusting the spectral efficiency (SE) of transmission while keeping the occupied bandwidth fixed. To achieve a given SE within a fixed bandwidth, both the underlying signal constellation size and the forward error correction code rate are adjusted. Using the scarce resource of bandwidth more effectively, the proposed scheme is expected to find applications in both current fixed-grid networks and in future networks that might adopt flexible grid approach.",

keywords = "Forward error correction (FEC), nonbinary low-density parity-check (LDPC) codes, optical fiber communication, rate-adaptive coded modulation",

author = "Murat Arabaci and Djordjevic, {Ivan B.} and Lei Xu and Ting Wang",

note = "Funding Information: Manuscript received April 22, 2012; revised June 1, 2012; accepted June 6, 2012. Date of publication June 15, 2012; date of current version July 20, 2012. This work was supported in part by NSF under Grant CCF-0952711 and in part by the NEC Laboratories America, Inc. M. Arabaci and I. B. Djordjevic are with the Department of Electrical and Computer Engineering, University of Arizona, Tucson, AZ 85721 USA (e-mail: arabaci@email.arizona.edu; ivan@email.arizona.edu). L. Xu and T. Wang are with NEC Laboratories America, Inc., Princeton, NJ 08540 USA (e-mail: leixu@nec-labs.com; ting@nec-labs.com). Color versions of one or more of the figures in this letter are available online at http://ieeexplore.ieee.org. Digital Object Identifier 10.1109/LPT.2012.2204973",

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doi = "10.1109/LPT.2012.2204973",

language = "English (US)",

volume = "24",

pages = "1402--1404",

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AU - Arabaci, Murat

AU - Djordjevic, Ivan B.

AU - Xu, Lei

AU - Wang, Ting

N1 - Funding Information: Manuscript received April 22, 2012; revised June 1, 2012; accepted June 6, 2012. Date of publication June 15, 2012; date of current version July 20, 2012. This work was supported in part by NSF under Grant CCF-0952711 and in part by the NEC Laboratories America, Inc. M. Arabaci and I. B. Djordjevic are with the Department of Electrical and Computer Engineering, University of Arizona, Tucson, AZ 85721 USA (e-mail: arabaci@email.arizona.edu; ivan@email.arizona.edu). L. Xu and T. Wang are with NEC Laboratories America, Inc., Princeton, NJ 08540 USA (e-mail: leixu@nec-labs.com; ting@nec-labs.com). Color versions of one or more of the figures in this letter are available online at http://ieeexplore.ieee.org. Digital Object Identifier 10.1109/LPT.2012.2204973

PY - 2012

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AB - A rate-adaptive nonbinary low-density parity-check-coded modulation scheme is proposed to enable fiber-optic transmission at variable bit rates by adjusting the spectral efficiency (SE) of transmission while keeping the occupied bandwidth fixed. To achieve a given SE within a fixed bandwidth, both the underlying signal constellation size and the forward error correction code rate are adjusted. Using the scarce resource of bandwidth more effectively, the proposed scheme is expected to find applications in both current fixed-grid networks and in future networks that might adopt flexible grid approach.

KW - Forward error correction (FEC)

KW - nonbinary low-density parity-check (LDPC) codes

KW - optical fiber communication

KW - rate-adaptive coded modulation

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Nonbinary LDPC-coded modulation for rate-adaptive optical fiber communication Without bandwidth expansion

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Keywords

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