887 citations · 1.2k across the 50 of their papers we have counts for
54 papers
Visualizing Wireless Propagation and Polarization in Augmented Reality with ESPARGOS
Florian Euchner, Stephan ten Brink
Wireless multipath propagation, beamforming, and polarization are central concepts in radio systems, but they are difficult to observe directly because radio-frequency fields are i…
When to Stop? Dynamic Early Termination of Sequential Ensembles
Paul Bezner, Felix Krieg, Stephan ten Brink
Ordered-statistics decoding (OSD) post-processing substantially improves the performance of belief propagation (BP) ensembles, but it also removes their natural syndrome-based stop…
SECS: A Soft Ensemble-Combining Stage for Low-Latency Decoding
Felix Krieg, Paul Bezner, Stephan ten Brink
Ensemble decoding is a promising technique for ultra-reliable low-latency communication, as it trades hardware parallelism for decoding latency by running M diverse belief propagat…
Row-Boosted Ensemble Belief Propagation for Short LDPC Codes
Paul Bezner, Felix Krieg, Stephan ten Brink
Belief-propagation (BP) decoding of short and moderate-length low-density parity-check (LDPC) codes is limited by finite-length graph effects: a single decoder trajectory can becom…
Auxiliary Nodes for BP Decoding of Quantum LDPC Codes
Daniel Tandler, Paul Bezner, Stephan ten Brink
Many recently proposed Calderbank-Shor-Steane (CSS) quantum low-density parity-check (QLDPC) codes have sparse decoding graphs, enabling syndrome-based belief propagation (BP) deco…
BASIIS: Bistatic Angular Sampling and Interpolation for ISAC Setups
Alexander Felix, Marcus Henninger, Lucas Giroto +3
Integrated Sensing and Communications (ISAC) is a defining feature of 6G, extending cellular networks with radar-like sensing at limited additional overhead. In bistatic deployment…
Chase-like Decoding: Test-Pattern Design and Performance Analysis
Tim Janz, Simon Obermüller, Andreas Zunker +1
Chase-like decoding algorithms are a popular choice for soft-input decoding of algebraic codes. We evaluate different test-pattern sets for Chase-like decoding. Structured sets, su…
Signal Space-Transformed Expectation Propagation for Symbol Detection in ISI Channels
Jannis Clausius, Luca Schmid, Laurent Schmalen +1
Iterative message passing detection based on expectation propagation (EP) has demonstrated near-optimum performance in many signal processing and communication scenarios. The metho…
Leveraging the Doppler Effect for Channel Charting
Florian Euchner, Phillip Stephan, Stephan ten Brink
Channel Charting is a dimensionality reduction technique that reconstructs a map of the radio environment from similarity relationships found in channel state information. Distance…
GAN-based Massive MIMO Channel Model Trained on Measured Data
Florian Euchner, Janina Sanzi, Marcus Henninger +1
Wireless channel models are a commonly used tool for the development of wireless telecommunication systems and standards. The currently prevailing geometry-based stochastic channel…
CRAP Part II: Clutter Removal with Continuous Acquisitions Under Phase Noise
Marcus Henninger, Silvio Mandelli, Artjom Grudnitsky +1
The mitigation of clutter is an important research branch in Integrated Sensing and Communication (ISAC), one of the emerging technologies of future cellular networks. In this work…
Antenna Array Design for Mono-Static ISAC
Alexander Felix, Silvio Mandelli, Marcus Henninger +1
Mono-static sensing operations in ISAC perform joint beamforming between transmitter and receiver. However, in contrast to pure radar systems, ISAC requires to fulfill communicatio…
Graph Neural Network-based Joint Equalization and Decoding
Jannis Clausius, Marvin Geiselhart, Daniel Tandler +1
This paper proposes to use graph neural networks (GNNs) for equalization, that can also be used to perform joint equalization and decoding (JED). For equalization, the GNN is build…
Deep Learning Based Adaptive Joint mmWave Beam Alignment
Daniel Tandler, Marc Gauger, Ahmet Serdar Tan +2
The challenging propagation environment, combined with the hardware limitations of mmWave systems, gives rise to the need for accurate initial access beam alignment strategies with…
Row-Merged Polar Codes: Analysis, Design and Decoder Implementation
Andreas Zunker, Marvin Geiselhart, Lucas Johannsen +4
Row-merged polar codes are a family of pre-transformed polar codes (PTPCs) with little precoding overhead. Providing an improved distance spectrum over plain polar codes, they are…
Augmenting Channel Charting with Classical Wireless Source Localization Techniques
Florian Euchner, Phillip Stephan, Stephan ten Brink
Channel Charting aims to construct a map of the radio environment by leveraging similarity relationships found in high-dimensional channel state information. Although resulting cha…
Learning Radio Environments by Differentiable Ray Tracing
Jakob Hoydis, Fayçal Aït Aoudia, Sebastian Cammerer +4
Ray tracing (RT) is instrumental in 6G research in order to generate spatially-consistent and environment-specific channel impulse responses (CIRs). While acquiring accurate scene…
Enumeration of Minimum Weight Codewords of Pre-Transformed Polar Codes by Tree Intersection
Andreas Zunker, Marvin Geiselhart, Stephan ten Brink
Pre-transformed polar codes (PTPCs) form a class of codes that perform close to the finite-length capacity bounds. The minimum distance and the number of minimum weight codewords a…
Angle-Delay Profile-Based and Timestamp-Aided Dissimilarity Metrics for Channel Charting
Phillip Stephan, Florian Euchner, Stephan ten Brink
Channel charting is a self-supervised learning technique whose objective is to reconstruct a map of the radio environment, called channel chart, by taking advantage of similarity r…
Successive Cancellation Automorphism List Decoding of Polar Codes
Lucas Johannsen, Claus Kestel, Marvin Geiselhart +3
The discovery of suitable automorphisms of polar codes gained a lot of attention by applying them in Automorphism Ensemble Decoding (AED) to improve the error-correction performanc…
Multi-Target Localization in Multi-Static Integrated Sensing and Communication Deployments
Maximilian Bauhofer, Silvio Mandelli, Marcus Henninger +2
In future wireless communication networks, existing active localization will gradually evolve into more sophisticated (passive) sensing functionalities. One main enabler for this p…
CRAP: Clutter Removal with Acquisitions Under Phase Noise
Marcus Henninger, Silvio Mandelli, Artjom Grudnitsky +2
The emergence of Integrated Sensing and Communication (ISAC) in future 6G networks comes with a variety of challenges to be solved. One of those is clutter removal, which should be…
Component Training of Turbo Autoencoders
Jannis Clausius, Marvin Geiselhart, Stephan ten Brink
Isolated training with Gaussian priors (TGP) of the component autoencoders of turbo-autoencoder architectures enables faster, more consistent training and better generalization to…
Phase-Equivariant Polar Coded Modulation
Marvin Geiselhart, Marc Gauger, Felix Krieg +2
For short-packet, low-latency communications over random access channels, piloting overhead significantly reduces spectral efficiency. Therefore, pilotless systems recently gained…