A Pragmatic Coded Modulation Scheme for High-Spectral-Efficiency Fiber-Optic Communications

Author

Smith, Benjamin P. ; Kschischang, Frank R.

Author_Institution

Electr. & Comput. Eng. Dept., Univ. of Toronto, Toronto, ON, Canada

Volume

30

Issue

13

fYear

2012

fDate

7/1/2012 12:00:00 AM

Firstpage

2047

Lastpage

2053

Abstract

A pragmatic coded modulation system is presented that incorporates signal shaping and exploits the excellent performance and efficient high-speed decoding architecture of staircase codes. Reliable communication within 0.62 bits/s/Hz of the estimated capacity (per polarization) of a system with L=2000 km is provided by the proposed system, with an error floor below 10^-20. Also, it is shown that digital backpropagation increases the achievable spectral efficiencies-relative to linear equalization-by 0.55 to 0.75 bits/s/Hz per polarization.

Keywords

backpropagation; optical fibre communication; optical modulation; telecommunication network reliability; digital backpropagation; high-spectral-efficiency fiber-optic communications; high-speed decoding architecture; linear equalization; pragmatic coded modulation scheme; reliable communication; signal shaping; staircase codes; Backpropagation; Decoding; Equations; Mathematical model; Modulation; Nonlinear optics; Receivers; Channel capacity; coded modulation; digital backpropagation; fiber-optic communications; forward error correction; staircase codes;

fLanguage

English

Journal_Title

Lightwave Technology, Journal of

Publisher

ieee

ISSN

0733-8724

Type

jour

DOI

10.1109/JLT.2012.2185683

Filename

6138266