no code implementations • 23 Oct 2023 • Hamza Djelouat, Mikko J. Sillanpää, Markku Juntti
This paper provides a solution for the activity detection and channel estimation problem in grant-free access with correlated device activity patterns.
no code implementations • 16 Oct 2023 • Hamza Djelouat, Mikko J. Sillanpää, Markus Leinonen, Markku Juntti
To solve the JUICE problem, we first leverage the concept of strong priors and propose a hierarchical-sparsity-inducing spike-and-slab prior to model the structured sparse activity pattern.
no code implementations • 18 Nov 2021 • Arttu Arjas, Erwin J. Alles, Efthymios Maneas, Simon Arridge, Adrien Desjardins, Mikko J. Sillanpää, Andreas Hauptmann
Many interventional surgical procedures rely on medical imaging to visualise and track instruments.
no code implementations • 22 Jul 2020 • Arttu Arjas, Lassi Roininen, Mikko J. Sillanpää, Andreas Hauptmann
Deconvolution is a fundamental inverse problem in signal processing and the prototypical model for recovering a signal from its noisy measurement.