activity
20102026
most citedOn Probabilistic Shaping of Quadrature Amplitude Modulation for the Nonlinear Fiber Channel

376 citations · 2.9k across the 110 of their papers we have counts for

collaborators
Showing 2015Show all

8 papers · 1 filter

physics.optics2015★ 1 cited

Why compensating fibre nonlinearity will never meet capacity demands

Domanic Lavery, Robert Maher, David Millar +3

Current research efforts are focussed on overcoming the apparent limits of communication in single mode optical fibre resulting from distortion due to fibre nonlinearity. It has be…

physics.optics2015★ 35 cited

The Benefit of Split Nonlinearity Compensation for Optical Fiber Communications

Domanic Lavery, David Ives, Gabriele Liga +3

In this Letter we analyze the benefit of digital compensation of fiber nonlinearity, where the digital signal processing is divided between the transmitter and receiver. The applic…

cs.IT2015★ 81 cited

Sensitivity Gains by Mismatched Probabilistic Shaping for Optical Communication Systems

Tobias Fehenberger, Domaniç Lavery, Robert Maher +3

Probabilistic shaping of quadrature amplitude modulation (QAM) is used to enhance the sensitivity of an optical communication system. Sensitivity gains of 0.43 dB and 0.8 dB are de…

cs.IT2015★ 11 cited

A Lower Bound on the per Soliton Capacity of the Nonlinear Optical Fibre Channel

Nikita A. Shevchenko, Jaroslaw E. Prilepsky, Stanislav A. Derevyanko +3

A closed-form expression for a lower bound on the per soliton capacity of the nonlinear optical fibre channel in the presence of (optical) amplifier spontaneous emission (ASE) nois…

cs.IT2015★ 38 cited

On the Impact of Optimal Modulation and FEC Overhead on Future Optical Networks

Alex Alvarado, David J. Ives, Seb Savory +1

The potential of optimum selection of modulation and forward error correction (FEC) overhead (OH) in future transparent nonlinear optical mesh networks is studied from an informati…

cs.IT2015★ 227 cited

Replacing the Soft FEC Limit Paradigm in the Design of Optical Communication Systems

Alex Alvarado, Erik Agrell, Domanic Lavery +2

The FEC limit paradigm is the prevalent practice for designing optical communication systems to attain a certain bit-error rate (BER) without forward error correction (FEC). This p…

cs.IT2015★ 89 cited

LDPC Coded Modulation with Probabilistic Shaping for Optical Fiber Systems

Tobias Fehenberger, Georg Böcherer, Alex Alvarado +1

An LDPC coded modulation scheme with probabilistic shaping, optimized interleavers and noniterative demapping is proposed. Full-field simulations show an increase in transmission d…

cs.IT2015★ 86 cited

On Achievable Rates for Long-Haul Fiber-Optic Communications

Tobias Fehenberger, Alex Alvarado, Polina Bayvel +1

Lower bounds on mutual information (MI) of long-haul optical fiber systems for hard-decision and soft-decision decoding are studied. Ready-to-use expressions to calculate the MI ar…