no code implementations • 14 Feb 2024 • Henk Wymeersch, Sharief Saleh, Ahmad Nimr, Rreze Halili, Rafael Berkvens, Mohammad H. Moghaddam, José Miguel Mateos-Ramos, Athanasios Stavridis, Stefan Wänstedt, Sokratis Barmpounakis, Basuki Priyanto, Martin Beale, Jaap van de Beek, Zi Ye, Marvin Manalastas, Apostolos Kousaridas, Gerhard P. Fettweis
As 6G emerges, cellular systems are envisioned to integrate sensing with communication capabilities, leading to multi-faceted communication and sensing (JCAS).
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 • 6 Jun 2023 • Ivo Bizon, Ahmad Nimr, Philipp Schulz, Marwa Chafii, Gerhard P. Fettweis
This work presents an investigation on the scalability of a deep leaning (DL)-based blind transmitter positioning system for addressing the multi transmitter localization (MLT) problem.
no code implementations • 6 Jun 2023 • Ivo Bizon, Zhongju Li, Ahmad Nimr, Marwa Chafii, Gerhard P. Fettweis
For obtaining experimental data, we collect power measurements associated with reference positions using a wireless sensor network in an indoor scenario.
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.
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.