Probabilistic Amplitude Shaping with Hard Decision Decoding and Staircase Codes
Artikel i vetenskaplig tidskrift, 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.

signal shaping

Coded modulation

optical networks

hard decision decoding

staircase codes

probabilistic shaping

error correcting codes

Författare

Alireza Sheikh

Chalmers, Elektroteknik

Alexandre Graell i Amat

Chalmers, Elektroteknik

Gianluigi Liva

Deutsches Zentrums für Luft- und Raumfahrt (DLR)

Fabian Roland Steiner

Technische Universität München

Journal of Lightwave Technology

0733-8724 (ISSN)

Vol. 36 1689-1697

Infrastruktur

C3SE (Chalmers Centre for Computational Science and Engineering)

Ämneskategorier

Kommunikationssystem

Elektroteknik och elektronik

DOI

10.1109/JLT.2017.2787342