no code implementations • 13 Feb 2024 • Nurettin Turan, Benedikt Böck, Kai Jie Chan, Benedikt Fesl, Friedrich Burmeister, Michael Joham, Gerhard Fettweis, Wolfgang Utschick
In this work, we utilize a Gaussian mixture model (GMM) to capture the underlying probability density function (PDF) of the channel trajectories of moving mobile terminals (MTs) within the coverage area of a base station (BS) in an offline phase.
no code implementations • 30 Oct 2023 • Muhammad Qurratulain Khan, Abdo Gaber, Mohammad Parvini, Philipp Schulz, Gerhard Fettweis
The 3rd Generation Partnership Project (3GPP) is currently studying machine learning (ML) for the fifth generation (5G)-Advanced New Radio (NR) air interface, where spatial and temporal-domain beam prediction are important use cases.
1 code implementation • 14 Aug 2023 • Anton Krause, Mohd Danish Khursheed, Philipp Schulz, Friedrich Burmeister, Gerhard Fettweis
The increasing relevance of resilience in wireless connectivity for Industry 4. 0 stems from the growing complexity and interconnectivity of industrial systems, where a single point of failure can disrupt the entire network, leading to significant downtime and productivity losses.
no code implementations • 15 Jun 2023 • Muris Sarajlić, Nuutti Tervo, Aarno Pärssinen, Le Hang Nguyen, Hardy Halbauer, Kilian Roth, Vaidyanathan Kumar, Tommy Svensson, Ahmad Nimr, Stephan Zeitz, Meik Dörpinghaus, Gerhard Fettweis
The projected sub-THz (100 - 300 GHz) part of the upcoming 6G standard will require a careful design of the waveform and choice of slot structure.
no code implementations • 23 Feb 2023 • Alexandros Palaios, Christian L. Vielhaus, Daniel F. Külzer, Cara Watermann, Rodrigo Hernangomez, Sanket Partani, Philipp Geuer, Anton Krause, Raja Sattiraju, Martin Kasparick, Gerhard Fettweis, Frank H. P. Fitzek, Hans D. Schotten, Slawomir Stanczak
This proactive behavior of the network can be leveraged to sustain, for example, a specific quality of service requirement.
Explainable Artificial Intelligence (XAI) Feature Engineering
1 code implementation • 20 Dec 2022 • Rodrigo Hernangómez, Philipp Geuer, Alexandros Palaios, Daniel Schäufele, Cara Watermann, Khawla Taleb-Bouhemadi, Mohammad Parvini, Anton Krause, Sanket Partani, Christian Vielhaus, Martin Kasparick, Daniel F. Külzer, Friedrich Burmeister, Frank H. P. Fitzek, Hans D. Schotten, Gerhard Fettweis, Sławomir Stańczak
The evolution of wireless communications into 6G and beyond is expected to rely on new machine learning (ML)-based capabilities.
1 code implementation • 20 Dec 2022 • Rodrigo Hernangómez, Alexandros Palaios, Cara Watermann, Daniel Schäufele, Philipp Geuer, Rafail Ismayilov, Mohammad Parvini, Anton Krause, Martin Kasparick, Thomas Neugebauer, Oscar D. Ramos-Cantor, Hugues Tchouankem, Jose Leon Calvo, Bo Chen, Gerhard Fettweis, Sławomir Stańczak
This paper presents two wireless measurement campaigns in industrial testbeds: industrial Vehicle-to-vehicle (iV2V) and industrial Vehicle-to-infrastructure plus Sensor (iV2I+), together with detailed information about the two captured datasets.
no code implementations • 14 Apr 2022 • Qiaohan Zhang, Ivo Bizon, Atul Kumar, Ana Belen Martinez, Marwa Chafii, Gerhard Fettweis
In this paper, we analytically model this interference, and propose an interference cancellation method based on the idea of segmentation of the received signal.
no code implementations • IEEE Transactions on Vehicular Technology 2021 • Abdul Karim Gizzini, Marwa Chafii, Ahmad Nimr, Raed M. Shubair, Gerhard Fettweis
IEEE 802. 11p standard defines wireless technology protocols that enable vehicular transportation and manage traffic efficiency.
no code implementations • 2 Apr 2021 • Roberto Bomfin, Marwa Chafii, Ahmad Nimr, Gerhard Fettweis
The OTFS modulation has been recently proposed as a robust technique under time varying channels due to its property of spreading the data symbols over time and frequency.
no code implementations • 5 Mar 2021 • El-Mehdi Amhoud, Marwa Chafii, Ahmad Nimr, Gerhard Fettweis
Communication using orbital angular momentum (OAM) modes has recently received a considerable interest in free space optical (FSO) communications.
no code implementations • 18 Feb 2021 • Ivo Bizon Franco de Almeida, Marwa Chafii, Ahmad Nimr, Gerhard Fettweis
Chirp spread spectrum (CSS) is the modulation technique currently employed by Long-Range (LoRa), which is one of the most prominent Internet of things wireless communications standards.
no code implementations • 5 Jan 2021 • Arsenia Chorti, Andre Noll Barreto, Stefan Kopsell, Marco Zoli, Marwa Chafii, Philippe Sehier, Gerhard Fettweis, H. Vincent Poor
Sixth generation systems are expected to face new security challenges, while opening up new frontiers towards context awareness in the wireless edge.
Cryptography and Security Signal Processing
1 code implementation • IEEE Globecom Workshops (GC Wkshps) 2020 • Abdul Karim Gizzini, Marwa Chafii, Ahmad Nimr, Gerhard Fettweis
IEEE 802. 11p standard enables the wireless technology that defines vehicular communications.
1 code implementation • IEEE 92nd Vehicular Technology Conference (VTC2020-Fall) 2020 • Abdul Karim Gizzini, Marwa Chafii, Ahmad Nimr, Gerhard Fettweis
Channel state information is very critical in various applications such as physical layer security, indoor localization, and channel equalization.
no code implementations • 22 Sep 2020 • Ivo Bizon Franco de Almeida, Marwa Chafii, Ahmad Nimr, Gerhard Fettweis
In this paper, we propose a scheme that encodes information bits on both in-phase and quadrature components of the chirp signal, and rather employs a coherent detector at the receiver.
1 code implementation • IEEE 91st Vehicular Technology Conference (VTC2020-Spring) 2020 • Abdul Karim Gizzini, Marwa Chafii, Ahmad Nimr, Gerhard Fettweis
Least square (LS) channel estimation employed in various communications systems suffers from performance degradation especially in low signal-to-noise ratio (SNR) regions.
1 code implementation • IEEE Access 2020 • Abdul Karim Gizzini, Marwa Chafii, Ahmad Nimr, Gerhard Fettweis
IEEE 802. 11p standard is specially developed to define vehicular communications requirements and support cooperative intelligent transport systems.
no code implementations • 6 May 2020 • Li You, Xu Chen, Xiaohang Song, Fan Jiang, Wenjin Wang, Xiqi Gao, Gerhard Fettweis
Based on these insights, the network massive MIMO precoding design is reduced to a network sum-rate maximization problem with respect to beam domain power allocation.