Probabilistic Amplitude Shaping with Hard Decision Decoding and Staircase Codes
Journal article, 2018

We consider probabilistic amplitude shaping (PAS) as a means of increasing the spectral efficiency of fiber-optic communication systems. In contrast to previous works in the literature, we consider probabilistic shaping with hard decision decoding (HDD). In particular, we apply the PAS recently introduced by Böcherer et al. to a coded modulation (CM) scheme with bit-wise HDD that uses a staircase code as the forward error correction code. We show that the CM scheme with PAS and staircase codes yields significant gains in spectral efficiency with respect to the baseline scheme using a staircase code and a standard constellation with uniformly distributed signal points. Using a single staircase code, the proposed scheme achieves performance within 0.57–1.44 dB of the corresponding achievable information rate for a wide range of spectral efficiencies.

error correcting codes

optical networks

signal shaping

hard decision decoding

Coded modulation

staircase codes

probabilistic shaping


Alireza Sheikh

Chalmers, Electrical Engineering

Alexandre Graell i Amat

Chalmers, Electrical Engineering

Gianluigi Liva

German Aerospace Center (DLR)

Fabian Roland Steiner

Technical University of Munich

Journal of Lightwave Technology

0733-8724 (ISSN) 1558-2213 (eISSN)

Vol. 36 9 1689-1697 8239792

Energy-efficient optical fibre communication

Knut and Alice Wallenberg Foundation (KAW2013.0021), 2014-07-01 -- 2019-06-30.


C3SE (Chalmers Centre for Computational Science and Engineering)

Subject Categories

Communication Systems

Electrical Engineering, Electronic Engineering, Information Engineering



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