On the channel capacity of multilevel modulation schemes with coherent detection

Ivan B. Djordjevic, Lei Xu, Ting Wang

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

We describe a method to determine the channel capacity of an arbitrary multilevel modulation scheme by modeling the fiber-optic channel as a dynamical nonlinear ISI channel with memory. We also propose a multilevel turbo-equalization scheme that is able closely to approach the channel capacity. We show that with this scheme we are able straightforwardly to upgrade currently installed 10 Gb/s optical transmission systems to 100 Gb/s, and even with small memory assumption we are able to achieve 100 Gb/s per DWDM channel transmission over 9600 km

Original languageEnglish (US)
Title of host publicationOptical Transmission Systems, Switching, and Subsystems VII
DOIs
StatePublished - Dec 1 2009
EventOptical Transmission Systems, Switching, and Subsystems VII - Shanghai, China
Duration: Nov 2 2009Nov 6 2009

Publication series

NameProceedings of SPIE - The International Society for Optical Engineering
Volume7632
ISSN (Print)0277-786X

Other

OtherOptical Transmission Systems, Switching, and Subsystems VII
CountryChina
CityShanghai
Period11/2/0911/6/09

Keywords

  • Channel capacity
  • Fiber-optics communications
  • Forward error correction (FEC)
  • Low-density parity-check (LDPC) codes
  • Modulation

ASJC Scopus subject areas

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

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  • Cite this

    Djordjevic, I. B., Xu, L., & Wang, T. (2009). On the channel capacity of multilevel modulation schemes with coherent detection. In Optical Transmission Systems, Switching, and Subsystems VII [76320W] (Proceedings of SPIE - The International Society for Optical Engineering; Vol. 7632). https://doi.org/10.1117/12.851122