318 citations · 1k across the 84 of their papers we have counts for
7 papers · 1 filter
Two-User SIMO Interference Channel with TIN: Improper Signaling versus Time-Sharing
Christoph Hellings, Ferhad Askerbeyli, Wolfgang Utschick
In the two-user Gaussian interference channel with Gaussian inputs and treating interference as noise (TIN), improper complex signals can be beneficial if time-sharing is not allow…
Reproducible Evaluation of Neural Network Based Channel Estimators And Predictors Using A Generic Dataset
Nurettin Turan, Wolfgang Utschick
A low-complexity neural network based approach for channel estimation was proposed recently, where assumptions on the channel model were incorporated into the design procedure of t…
Learning The MMSE Channel Predictor
Nurettin Turan, Wolfgang Utschick
We present a neural network based predictor which is derived by starting from the linear minimum mean squared error (LMMSE) predictor and by further making two key assumptions. Wit…
Maximizing the Partial Decode-and-Forward Rate in the Gaussian MIMO Relay Channel
Christoph Hellings, Patrick Gest, Thomas Wiegart +1
It is known that circularly symmetric Gaussian signals are the optimal input signals for the partial decode-and-forward (PDF) coding scheme in the Gaussian multiple-input multiple-…
Model Order Selection in DoA Scenarios via Cross-Entropy based Machine Learning Techniques
Andreas Barthelme, Reinhard Wiesmayr, Wolfgang Utschick
In this paper, we present a machine learning approach for estimating the number of incident wavefronts in a direction of arrival scenario. In contrast to previous works, a multilay…
Mixed Monotonic Programming for Fast Global Optimization
Bho Matthiesen, Christoph Hellings, Eduard A. Jorswieck +1
While globally optimal solutions to many convex programs can be computed efficiently in polynomial time, this is, in general, not possible for nonconvex optimization problems. Ther…
Feature- and Structure-Preserving Network Reduction for Large-Scale Transmission Grids
Julia Sistermanns, Matthias Hotz, Dominic Hewes +2
Many countries are currently challenged with the extensive integration of renewable energy sources, which necessitates vast capacity expansion measures. These measures in turn requ…