25 citations · 41 across the 18 of their papers we have counts for
15 papers · 1 filter
Autonomous Discovery of Wireless Communications Algorithms
Fayçal Aït Aoudia, Jakob Hoydis, Sebastian Cammerer +4
Large language model (LLM)-driven evolutionary search is an emerging algorithm-discovery paradigm that has already produced novel results in several scientific fields. Yet its appl…
Fundamental Limits for Jammer-Resilient Communication in Finite-Resolution MIMO
Gian Marti, Alexander Stutz-Tirri, Christoph Studer
Spatial filtering based on multiple-input multiple-output (MIMO) processing is a powerful method for jammer mitigation. In principle, a MIMO receiver can null the interference of a…
LoFi User Scheduling for Multiuser MIMO Wireless Systems
Alexandra Gallyas-Sanhueza, Gian Marti, Victoria Palhares +2
We propose new low-fidelity (LoFi) user equipment (UE) scheduling algorithms for multiuser multiple-input multiple-output (MIMO) wireless communication systems. The proposed method…
Active Eavesdropper Mitigation via Orthogonal Channel Estimation
Gian Marti, Christoph Studer
Beamforming is a powerful tool for physical layer security, as it can be used for steering signals towards legitimate receivers and away from eavesdroppers. An active eavesdropper,…
High Dynamic Range mmWave Massive MU-MIMO with Householder Reflections
Victoria Palhares, Gian Marti, Oscar Castañeda +1
All-digital massive multiuser (MU) multiple-input multiple-output (MIMO) at millimeter-wave (mmWave) frequencies is a promising technology for next-generation wireless systems. Low…
Single-Antenna Jammers in MIMO-OFDM Can Resemble Multi-Antenna Jammers
Gian Marti, Christoph Studer
In multiple-input multiple-output (MIMO) wireless systems with frequency-flat channels, a single-antenna jammer causes receive interference that is confined to a one-dimensional su…
Universal MIMO Jammer Mitigation via Secret Temporal Subspace Embeddings
Gian Marti, Christoph Studer
MIMO processing enables jammer mitigation through spatial filtering, provided that the receiver knows the spatial signature of the jammer interference. Estimating this signature is…
Joint Jammer Mitigation and Data Detection for Smart, Distributed, and Multi-Antenna Jammers
Gian Marti, Christoph Studer
Multi-antenna (MIMO) processing is a promising solution to the problem of jammer mitigation. Existing methods mitigate the jammer based on an estimate of its subspace (or receive s…
Bit Error and Block Error Rate Training for ML-Assisted Communication
Reinhard Wiesmayr, Gian Marti, Chris Dick +2
Even though machine learning (ML) techniques are being widely used in communications, the question of how to train communication systems has received surprisingly little attention.…
Mitigating Smart Jammers in Multi-User MIMO
Gian Marti, Torben Kölle, Christoph Studer
Wireless systems must be resilient to jamming attacks. Existing mitigation methods based on multi-antenna processing require knowledge of the jammer's transmit characteristics that…
Beam Alignment for the Cell-Free mmWave Massive MU-MIMO Uplink
Jannik Brun, Victoria Palhares, Gian Marti +1
Millimeter-wave (mmWave) cell-free massive multi-user (MU) multiple-input multiple-output (MIMO) systems combine the large bandwidths available at mmWave frequencies with the impro…
Mitigating Smart Jammers in MU-MIMO via Joint Channel Estimation and Data Detection
Gian Marti, Christoph Studer
Wireless systems must be resilient to jamming attacks. Existing mitigation methods require knowledge of the jammer's transmit characteristics. However, this knowledge may be diffic…
Hybrid Jammer Mitigation for All-Digital mmWave Massive MU-MIMO
Gian Marti, Oscar Castañeda, Sven Jacobsson +3
Low-resolution analog-to-digital converters (ADCs) simplify the design of millimeter-wave (mmWave) massive multi-user multiple-input multiple-output (MU-MIMO) basestations, but inc…
Jammer Mitigation via Beam-Slicing for Low-Resolution mmWave Massive MU-MIMO
Gian Marti, Oscar Castañeda, Christoph Studer
Millimeter-wave (mmWave) massive multi-user multiple-input multiple-output (MU-MIMO) promises unprecedented data rates for next-generation wireless systems. To be practically viabl…
Beam-Slicing for Jammer Mitigation in mmWave Massive MU-MIMO
Oscar Castañeda, Gian Marti, Christoph Studer
Millimeter-wave (mmWave) massive multi-user multiple-input multiple-output (MU-MIMO) technology promises unprecedentedly high data rates for next-generation wireless systems. To be…