Author

Wolfgang Utschick

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Preprint Sep 2026

OTFS Channel Estimation Utilizing Sparse Bayesian Generative Modelling

One of the key challenges of future wireless communication systems is ensuring reliability in high-speed mobile scenarios, where accurate recovery of channel state information (CSI) is essential. Many recent studies have concluded that orthogonal time-frequency space (OTFS) modulation is a promising technology for addr...

Louis Anseaume, Benedikt Böck, Franz Weisser et al. · 0 citations

Preprint Jul 2026

Efficient Channel Prediction based on Gram-Square-Root Factorization using GMMs

This work proposes a Gaussian mixture model (GMM)-based prediction framework for MIMO-orthogonal frequency-division multiplexing channels under partial feedback using Gram-square-root factorization, and introduces an efficient parameter reduction technique that exploits structured covariance matrices, significantly low...

Kathrin Klein, Amar Kasibovic, M. Joham et al. · 0 citations