Range-division multiplexing for MIMO OFDM joint radar and communications

O Lang, C Hofbauer, R Feger… - IEEE Transactions on …, 2022 - ieeexplore.ieee.org
An orthogonal frequency-division multiplexing (OFDM) waveform enables simultaneous
radar sensing and communications. In the multiple-input multiple-output (MIMO) case with …

OFDM radar with subcarrier aliasing—Reducing the ADC sampling frequency without losing range resolution

O Lang, R Feger, C Hofbauer… - IEEE Transactions on …, 2022 - ieeexplore.ieee.org
Many radar applications require a high range resolution, entailing the necessity for a large
signal bandwidth. When employing an orthogonal frequency-division multiplexing (OFDM) …

Neural Network Approaches for Data Estimation in Unique Word OFDM Systems

S Baumgartner, G Bognár, O Lang… - IEEE Transactions on …, 2023 - ieeexplore.ieee.org
Data estimation is conducted with model-based estimation methods since the beginning of
digital communications. However, motivated by the growing success of machine learning …

Doppler Aliasing in OFDM Radar–A Method for Reducing the ADC Sampling Frequency without Losing Range Resolution

O Lang, R Feger, C Hofbauer… - IEEE Transactions on …, 2023 - ieeexplore.ieee.org
The orthogonal frequency-division multiplexing (OFDM) waveform is especially suited for
joint sensing and communication applications and has raised attention for radar-driven …

[HTML][HTML] Component-wise conditionally unbiased widely linear MMSE estimation

M Huemer, O Lang, C Hofbauer - Signal Processing, 2017 - Elsevier
Biased estimators can outperform unbiased ones in terms of the mean square error (MSE).
The best linear unbiased estimator (BLUE) fulfills the so called global conditional unbiased …

Effects of Doppler-Division Multiplexing on OFDM Joint Sensing and Communication Systems

O Lang, C Hofbauer, R Feger… - IEEE Open Journal of …, 2023 - ieeexplore.ieee.org
A promising waveform candidate for future joint sensing and communication systems is
orthogonal frequency-division multiplexing (OFDM). For such systems, supporting multiple …

OFDM-Based Waveforms for Joint Sensing and Communications Robust to Frequency Selective IQ Imbalance

O Lang, C Hofbauer, M Tockner… - IEEE Transactions …, 2024 - ieeexplore.ieee.org
Orthogonal frequency-division multiplexing (OFDM) is a promising waveform candidate for
future joint sensing and communication systems. It is well known that the OFDM waveform is …

Classical widely linear estimation of real valued parameter vectors in complex valued environments

O Lang, M Huemer - arxiv preprint arxiv:1704.08825, 2017 - arxiv.org
This work investigates the task of estimating a real valued parameter vector based on
complex valued measurements in a classical set-up. The application of standard estimators …

Doppler-Division Multiplexing for MIMO OFDM Joint Sensing and Communications

O Lang, C Hofbauer, R Feger, M Huemer - arxiv preprint arxiv …, 2023 - arxiv.org
A promising waveform candidate for future joint sensing and communication systems is
orthogonal frequencydivision multiplexing (OFDM). For such systems, supporting multiple …

Machine Learning Concepts for Physical Layer Receiver Processing in Wireless Communication Systems/submitted by Stefan Baumgartner

S Baumgartner - 2024 - epub.jku.at
Typical processing tasks in wireless communications engineering such as, eg, channel
estimation, equalization,(self-) interference cancellation, and digital pre-distortion have been …