Work

Probabilistic Amplitude Shaping With Hard Decision Decoding and Staircase Codes

Year: 2017

Type: article

Abstract: 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.

Source: Journal of Lightwave Technology

DOI: 10.1109/jlt.2017.2787342

Authors: Alireza Sheikh, Alexandre Graell i Amat, Gianluigi Liva, Fabian Steiner

Institutions: Chalmers University of Technology, Deutsches Zentrum für Luft- und Raumfahrt e. V. (DLR), Technical University of Munich

Language: English

Topic: Optical Network Technologies

Subfield: Electrical and Electronic Engineering

Field: Engineering

Domain: Physical Sciences

Open Access status: green

Funders: Knut och Alice Wallenbergs Stiftelse, Vetenskapsrådet

Award: Rethinking Distributed Storage for Data Storage and Wireless Content Delivery