425 citations · 1.6k across the 52 of their papers we have counts for
100 papers
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…
Low-Complexity Blind Parameter Estimation in Wireless Systems with Noisy Sparse Signals
Alexandra Gallyas-Sanhueza, Christoph Studer
Baseband processing algorithms often require knowledge of the noise power, signal power, or signal-to-noise ratio (SNR). In practice, these parameters are typically unknown and mus…
Alternating Projections Method for Joint Precoding and Peak-to-Average-Power Ratio Reduction
Sueda Taner, Christoph Studer
Orthogonal frequency-division multiplexing (OFDM) time-domain signals exhibit high peak-to-average (power) ratio (PAR), which requires linear radio-frequency chains to avoid an inc…
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…
Feature Learning for Neural-Network-Based Positioning with Channel State Information
Emre Gönültaş, Sueda Taner, Howard Huang +1
Recent channel state information (CSI)-based positioning pipelines rely on deep neural networks (DNNs) in order to learn a mapping from estimated CSI to position. Since real-world…
Improving Channel Charting using a Split Triplet Loss and an Inertial Regularizer
Brian Rappaport, Emre Gönültaş, Jakob Hoydis +3
Channel charting is an emerging technology that enables self-supervised pseudo-localization of user equipments by performing dimensionality reduction on large channel-state informa…