Using LDPC-coded modulation and coherent detection for ultra highspeed optical transmission

Ivan B. Djordjevic; Milorad Cvijetic; Lei Xu; Ting Wang

doi:10.1109/JLT.2007.906791

Using LDPC-coded modulation and coherent detection for ultra highspeed optical transmission

Ivan B. Djordjevic, Milorad Cvijetic, Lei Xu, Ting Wang

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

74 Scopus citations

Abstract

We propose the coded modulation schemes for ultrahigh-speed transmission (100 Gb/s and above) by using commercially available components operating at 40 gigasymbols/s. The bit-interleaved coded modulation in combination with the low-density parity-check codes that are used as component codes has been applied. The modulation is based on either M-ary quadrature-amplitude modulation or M-ary phase-shift keying. Log₂M bits are mapped into the corresponding signal constellation point using either Gray or natural mapping. The coherent detection scheme has been found to outperform the direct detection one and to provide an additional margin much needed for longer transmission distances or for application in an all-optical network scenario.

Original language	English (US)
Pages (from-to)	3619-3625
Number of pages	7
Journal	Journal of Lightwave Technology
Volume	25
Issue number	11
DOIs	https://doi.org/10.1109/JLT.2007.906791
State	Published - Nov 2007

Keywords

Bit-interleaved coded modulation (BICM)
Coherent detection
Low-density parity-check (LDPC) codes
Optical communications

ASJC Scopus subject areas

Atomic and Molecular Physics, and Optics

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10.1109/JLT.2007.906791

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title = "Using LDPC-coded modulation and coherent detection for ultra highspeed optical transmission",

abstract = "We propose the coded modulation schemes for ultrahigh-speed transmission (100 Gb/s and above) by using commercially available components operating at 40 gigasymbols/s. The bit-interleaved coded modulation in combination with the low-density parity-check codes that are used as component codes has been applied. The modulation is based on either M-ary quadrature-amplitude modulation or M-ary phase-shift keying. Log2M bits are mapped into the corresponding signal constellation point using either Gray or natural mapping. The coherent detection scheme has been found to outperform the direct detection one and to provide an additional margin much needed for longer transmission distances or for application in an all-optical network scenario.",

keywords = "Bit-interleaved coded modulation (BICM), Coherent detection, Low-density parity-check (LDPC) codes, Optical communications",

author = "Djordjevic, {Ivan B.} and Milorad Cvijetic and Lei Xu and Ting Wang",

note = "Funding Information: Manuscript received May 3, 2007; revised July 18, 2007. This work was supported in part by the National Science Foundation (NSF) under Grant IHCS 0725405 and by NEC Laboratories America. I. B. Djordjevic is with the Department of Electrical and Computer Engineering, University of Arizona, Tucson, AZ 85721 USA (e-mail: ivan@ece. arizona.edu). M. Cvijetic is with NEC Corporation of America, Herndon, VA 20171 USA (e-mail: Milorad.Cvijetic@necam.com). L. Xu and T. Wang are with NEC Laboratories America, Princeton, NJ 08540 USA. Color versions of one or more of the figures in this paper are available online at http://ieeexplore.ieee.org. Digital Object Identifier 10.1109/JLT.2007.906791",

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doi = "10.1109/JLT.2007.906791",

language = "English (US)",

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N1 - Funding Information: Manuscript received May 3, 2007; revised July 18, 2007. This work was supported in part by the National Science Foundation (NSF) under Grant IHCS 0725405 and by NEC Laboratories America. I. B. Djordjevic is with the Department of Electrical and Computer Engineering, University of Arizona, Tucson, AZ 85721 USA (e-mail: ivan@ece. arizona.edu). M. Cvijetic is with NEC Corporation of America, Herndon, VA 20171 USA (e-mail: Milorad.Cvijetic@necam.com). L. Xu and T. Wang are with NEC Laboratories America, Princeton, NJ 08540 USA. Color versions of one or more of the figures in this paper are available online at http://ieeexplore.ieee.org. Digital Object Identifier 10.1109/JLT.2007.906791

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Using LDPC-coded modulation and coherent detection for ultra highspeed optical transmission

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