Recent publications

April 2026

Uplink Multi-User MIMO Testbed Implementation in OpenAirInterface

Utku Uçak, Matthias Mehlhose, Slawomir Stanczak, Renato L. G. Cavalcante, Jochen Fink, Daniel Schäufele, Fariba Armandoust

This paper presents our results on building an Uplilnk Multi-User Multiple Input Multiple Output (MU-MIMO) testbed using OpenAirInteface and software-defined radios (SDRs). We overview the theory and detail the firmware implementation, hardware...


April 2026

Performance Analysis of Cell-Free Massive MIMO under Imperfect LoS Phase Tracking

Noor Ul Ain, Slawomir Stanczak, Renato L. G. Cavalcante, Lorenzo Miretti

A unified Rician fading model and MMSE-optimal framework for performance analysis of distributed massive MIMO that bridges the gap between idealized assumptions and practical tracking limitations in cell-free networks.


April 2026

Pt–Re dehydrogenation catalysts synthesized via solvent deficient precipitation

Ana de Oliveira, Eike Hübner, Felix Lederle, Philipp Memmel, Peter Wasserscheid, Moritz Wolf, Franziska Auer

This study demonstrates the feasibility of producing Pt–Re/Al2O3 catalysts via the scalable solvent deficient precipitation method achieving enhanced performance in the dehydrogenation of liquid organic hydrogen carriers. Successful 10-fold...


April 2026

A consolidated and accessible security proof for finite-size decoy-state quantum key distribution

Jerome Wiesemann, Jan Krause, Nino Walenta, Davide Rusca, Devashish Tupkary, Norbert Lütkenhaus

In recent years, quantum key distribution (QKD) has evolved from a scientific research field to a commercially available security solution, supported by mathematically formulated security proofs. However, since the knowledge required for a full...


April 2026

Deterministic Ray-Launching Tool for THz Propagation Modeling

Arslan Arif, Alper Schultze, Mikel Celaya-Echarri, Francisco Falcone, Fidel A. Rodríguez-Corbo, Miguel Navarro-Cía, Leyre Azpilicueta

In this paper, we introduce a deterministic ray-launching (RL) tool for THz propagation modeling. The tool includes a library of electromagnetic material properties, obtained from measurements of common building materials and uses geometric and...


March 2026

AI/ML-Driven 6G Network Solutions with Energy Efficiency Considerations

Andreas Roessler, Slawomir Stanczak, Aydin Sezgin, Dirk Wübben, Armin Dekorsy, Gerhard Fettweis, Rick Fritschek, Carsten Bockelmann, Jochen Fink, Rouaa Diab, PRAMESH GAUTAM, SACHINKUMAR B. MALLIKARJUN, MUHAMMAD QURRATULAIN KHAN, MOHAMMAD PARVINI, ALI EL HUSSEINI, Marco Danger, RAFAEL F. SCHAEFER, Alireza Danaee, Miguel M.Lopez, Ali Abdi, Christian Arendt, Ahmad Nimr, Erma Perenda, Robert-Jeron Reifert, Christian Wietfeld

This paper covers some AI/ML-related topics for 6G within’ the context of 6G-ANNA project. It brings together partners from industry and academia, highlighting the role of AI/ML in 6G from both standardization and aca! demia point of view. It...


March 2026

3D-printed dual-polarized magneto-electric dipole antenna with > 50-dB wideband isolation for full-duplex and ICAS applications

Mehmet Ahad Yurtoglu, Michael Peter, Ramez Askar, Laura Alice Leather

A 3D-printed, wideband, dual-polarized magneto-electric dipole (MED) antenna achieving over 50 dB cross-polarization isolation across 3.05–4.13 GHz is designed. The design enables cost-effective fabrication, stable radiation performance, and...


March 2026

Challenges and Advances of SDM-PON

Ziyan Ma, Volker Jungnickel, Kai Habel, Ronald Freund, Christoph Kottke, Andre Richter, Nikolay Ledentsov, Sarah Cwalina, Tobias Tiess, V. Shchukin, Vladislav Neskorniuk, Igor Koltchanov, Artur Chaikovski, Michael Straub, André Klauss

This paper presents the advances and challenges in the design, integration, and performance evaluation of an SDM-PON system based on newly developed 7-core weakly coupled MCF. It highlights the system architecture, including MCF design,...


March 2026

R3GW: Relightable 3D Gaussians for Outdoor Scenes in the Wild

Margherita Corona, Peter Eisert, Anna Hilsmann, Wieland Morgenstern

In this paper, we present R3GW, a novel method that learns a relightable 3DGS representation of an outdoor scene captured in the wild. Our approach separates the scene into a relightable foreground and a non-reflective background (the sky), using...


March 2026

Phys-3D: Physics-Constrained Real-Time Crowd Tracking and Counting on Railway Platforms

Bin Zeng, Peter Eisert, Anna Hilsmann, Johannes Wolf Künzel

We propose a physics-constrained tracking framework that unifies detection, appearance, and 3D motion reasoning in a real-time pipeline. Our approach integrates a transfer-learned YOLOv11m detector with EfficientNet-B0 appearance encoding within...


Items per page10ǀ20ǀ30
Results 1-10 of 458
<< < 1 2 3 4 5 6 7 8 > >>