activity
20142026
most citedPerformance of Hierarchical Sparse Detectors for Massive MTC

11 citations · 32 across the 11 of their papers we have counts for

collaborators

18 papers

eess.SP2026

Condition-Wise Sinkhorn Drifting for One-Shot Learned Channel Simulation

Rick Fritschek, Rafael F. Schaefer

Learned communication systems may evaluate stochastic channel surrogates millions of times inside differentiable training loops, making diffusion-style reverse sampling expensive.…

cs.IT2025

MinGRU-Based Encoder for Turbo Autoencoder Frameworks

Rick Fritschek, Rafael F. Schaefer

Early neural channel coding approaches leveraged dense neural networks with one-hot encodings to design adaptive encoder-decoder pairs, improving block error rate (BLER) and automa…

cs.IT2023

Diffusion Models for Accurate Channel Distribution Generation

Muah Kim, Rick Fritschek, Rafael F. Schaefer

Strong generative models can accurately learn channel distributions. This could save recurring costs for physical measurements of the channel. Moreover, the resulting differentiabl…

cs.IT2022

Concatenated Classic and Neural (CCN) Codes: ConcatenatedAE

Onur Günlü, Rick Fritschek, Rafael F. Schaefer

Small neural networks (NNs) used for error correction were shown to improve on classic channel codes and to address channel model changes. We extend the code dimension of any such…

cs.IT2021

A Reverse Jensen Inequality Result with Application to Mutual Information Estimation

Gerhard Wunder, Benedikt Groß, Rick Fritschek +1

The Jensen inequality is a widely used tool in a multitude of fields, such as for example information theory and machine learning. It can be also used to derive other standard ineq…

cs.IT2021

Reinforce Security: A Model-Free Approach Towards Secure Wiretap Coding

Rick Fritschek, Rafael F. Schaefer, Gerhard Wunder

The use of deep learning-based techniques for approximating secure encoding functions has attracted considerable interest in wireless communications due to impressive results obtai…