164 citations · 1.2k across the 72 of their papers we have counts for
6 papers · 2 filters
Wideband Time-Domain Digital Backpropagation via Subband Processing and Deep Learning
Christian Häger, Henry D. Pfister
We propose a low-complexity sub-banded DSP architecture for digital backpropagation where the walk-off effect is compensated using simple delay elements. For a simulated 96-Gbaud s…
On Low-Complexity Decoding of Product Codes for High-Throughput Fiber-Optic Systems
Alireza Sheikh, Alexandre Graell i Amat, Gianluigi Liva +2
We study low-complexity iterative decoding algorithms for product codes. We revisit two algorithms recently proposed by the authors based on bounded distance decoding (BDD) of the…
ASIC Implementation of Time-Domain Digital Backpropagation with Deep-Learned Chromatic Dispersion Filters
Christoffer Fougstedt, Christian Häger, Lars Svensson +2
We consider time-domain digital backpropagation with chromatic dispersion filters jointly optimized and quantized using machine-learning techniques. Compared to the baseline implem…
Decoding Reed-Muller Codes Using Minimum-Weight Parity Checks
Elia Santi, Christian Häger, Henry D. Pfister
Reed-Muller (RM) codes exhibit good performance under maximum-likelihood (ML) decoding due to their highly-symmetric structure. In this paper, we explore the question of whether th…
Deep Learning of the Nonlinear Schrödinger Equation in Fiber-Optic Communications
Christian Häger, Henry D. Pfister
An important problem in fiber-optic communications is to invert the nonlinear Schrödinger equation in real time to reverse the deterministic effects of the channel. Interestingly,…
Synthesis of Logical Clifford Operators via Symplectic Geometry
Narayanan Rengaswamy, Robert Calderbank, Swanand Kadhe +1
Quantum error-correcting codes can be used to protect qubits involved in quantum computation. This requires that logical operators acting on protected qubits be translated to physi…