Nils Dreyer, Gerald Artner, Matthias Hein, Frank Backwinkel, Thomas Kürner
IEEE ICCVE 2019, Gratz
Cellular connectivity plays an important role for the future development of automated and connected driving and intelligent traffic. An internet connection based on a 5G network can offer new services as entertainment (media streaming) or traffic information for improved navigation and cruising. Development and testing automotive antenna designs is time consuming and expensive. An open question is the evaluation of different antennas within a realistic environment. To fill this gap and facilitate optimal antenna design we introduce three scoring indicators to compare automotive antennas for cellular mobile communications and estimate their performance. This approach can be applied both to measured data and simulation results. The indicators help to make decisions on the type of integrated antenna by considering throughput as well as network coverage.
Nils Dreyer, Eicke Arne Janas, Thomas Kürner
COST Action CA15104 Oulu, Finland
Network simulators play an important role for studying and evaluating V2V communication that is based on the IEEE 802.11p radio standard. Those simulators enable setting up a well-defined scenario that could be used to investigate critical situations e.g. channel congestion. Thereby many research that was published in the past is based on one of the two famous open source network simulators Veins (linked to OMNet++) or NS-3. In this paper we will give an overview of the simulation capabilities of Veins and NS-3. This includes a comparison of the offered features and a deeper analysis of the used propagation models. We setup scenarios and executed the same simulation in NS-3 and Veins to compare received power levels and the packet failure ratio. The study finally revealed some unresolved implementation errors.
Johannes M. Eckhardt, Tobias Doeker, Sebastian Rey, Thomas Kürner
13th European Conference on Antennas and Propagation (EuCAP 2019)
In this paper a measurement campaign in a real Data Centre at 300GHz and recent results are presented. The measurements are performed with a UWB sub-mmWave channel sounder and classified in general characterisation, top-ofrack and intra-rack measurements. The individual measurement setups as well as the methodology are explained. In a first step, the measurements are evaluated regarding the path attenuation, the power delay profile (PDP) and the power angular spectrum (PAS). The PDP as well as the PAS give comprehensible results, which are explained by the scenario’s geometry. The path attenuation shows reasonable results compared to the free space path loss and demonstrates that wireless communication at 300GHz in a Data Centre is possible.
Nils Dreyer, Thomas Kürner
The 13th European Conference on Antennas and Propagation (EuCAP 2019)
The communication between two devices (D2D) plays an important role for future networks such as
Internet of Things (IoT) or Intelligent Transport Systems (ITS). A challenging task is the simulation of the physical layer in highly dynamic networks with a large number of moving devices. Nowadays, such simulations are mostly performed using stochastic channel models completely neglecting specific spatial effects. Ray optical path loss predictions (Raytracing), considering 3D building data, are
often seen as not suitable for large networks due to their high complexity combined with their long processing time. In this paper, we introduce a novel calculation method that leads to a significant speed-up of Raytracing predictions. The approach analytically investigates a scenario and
precalculates the visibility between all static surfaces. The changing propagation paths of moving devices can quickly be determined even for higher orders of reflection.
Jornod, G.; Nan, T.; Schweins, M.; El Assaad, A.; Kwoczek, A.; Kürner, Th.
We present a benchmarking framework for different radio access technologies (RATs) in a high density platooning (HDPL) emergency braking use case. We assess the performance of IEEE 802.11p as well as LTE-V managed mode (mode 3) and unmanaged mode (mode 4) for sidelink communications. The performances are studied in terms of delays, packet error rates (PERs) and unctional safety indicators.We first vary the number of vehicles, the surrounding traffic and the inter-vehicle distance. Multiple traffic scenarios are then investigated for the most challenging conditions. We find that for reasonable surrounding traffic, the platoon is generally safe in this emergency scenario, although packet error rates are growing for IEEE 802.11p and
LTE-V mode 4 as the traffic intensifies, along with delays for the former technology. Thanks to scheduling, LTE-V mode 3 is not affected by this increasing PER and shows a large constant delay: the scheduling delay. With this study, we pave the way for a further study of these radio technologies with more accurate channel models as well as including new 5G components in our benchmarking.
| Born in 1964 | |
| Oct. 1985 - Sept. 1990 | Student of Electrical Engineering at the University of Karlsruhe |
| Nov. 1990 - Feb. 1994 | Research assistant at the Institute for Microwave Engineering and Electronics (Prof. Dr.-Ing. W. Wiesbeck) working in the area of propagation and radio network planning |
| July 1993 | Ph. D. Thesis at the Faculty for Electrical Engineering of the University of Karlsruhe with the subject "Characterisation of Digital Radio Systems with a Broadband Wave Propagation Model" |
| 1994 | 1994 ITG Promotional Award aworded by the VDE (Association of German Electrical Engineers) |
| 1995 | Nomination as Junior Scientist at Stiftung Werner-von-Siemens-Ring |
| 1993 - 1994 | Freelancer at L&S Hochfrequenztechnik at Lichtenau (software development in the field of planning tools for the frequency coordination) |
| Feb. 1994 - May 2003 | Planning Specialist / Team Manager "Radio Network Planning Support" with E-Plus Mobilfunk GmbH & Co KG (GSM and UMTS mobile network operator) in the Department Radio Network Planning; |
| 2001 | Senior Member IEEE |
| since June 2003 | Professor for Mobile Radio Systems at the Technische Universität Braunschweig |
| 2009 | Nomination to URSI Commission F |
Activities in international bodies and projects
| 1995-2002 | Member of ITU-R SG 3 Radio Wave Propagation; i. a. rapporteur for the recommendation ITU-R P.1411 |
| 1996-2011 | Chapter and section editor of final reports of the European projects COST 231, 259, 273 and 2100 |
| 1997-2000 | UMTS Forum Spectrum Aspects Group: Coordinator of the Report No. 5 on Minimum Spectrum Demand per Public Terrestrial Operator in the Initial Phase |
| 1997-2000 | Chair COST 259 Working Group Network Aspects |
| 1998-2000 | Member of the national WRC 2000 preparatory group of Germany (focus on spectrum for UMTS extension bands) |
| 2001-2003 | IST-MOMENTUM project: Work Package Leader "Automatic Planning of large-scale Radio Networks" |
| 2005-2006 | Member of an expert group to set up the European COST 2100 project |
| 2008-2012 | Member of the national WRC 2012 preparatory group of Germany (focus on spectrum for THz Communications) |
| since 2008 | Member of IEEE 802.15 THz Interest Group/Technical Advisory Group THz (Chair since 2009) |
| 2012-2017 | Chair Working Group Propagation European Association of Antennas and Propagation |
| since 2012 | Representative of Technische Universität Braunschweig (Advisory Member) at the NGMN Alliance |
| since 2013 | European School of Antennas (ESoA), Member of the Board |
| 2014-2017 | Chair IEEE 802.15 Task Group 3d (100 Gbit/s Wireless) |
| 2015-2017 | Vice-Chair IEEE 802.15 Task Group 3e (High Rate Close Proximity) |
| since 2016 | Member of the Board of Directors European Association on Antennas and Propagation (EurAAP) |
| since 2018 | EU Coordinator Horizon 2020 EU-Japan-Project ThoR |
Other Activities
| since 1993 | Lecturer for the Carl Cranz Series for scientific education teaching wave propagation modelling and channel characterisation |
| 2004-2009 | Study Dean for Computer and Communication Systems Engineering at TU Braunschweig |
| since 2008 | Associate Editor IEEE Transactions on Vehicular Technology |
| 2012 | Guest Lecturer at Dublin City University |
| since 2012 | Technical expert witness in regulatory and spectrum issues |
| since 2014 | Lecturer at the European School of Antennas |
| 2015 | Technical expert in a patent litigation on Self-Organizing Networks before the UK High Court in London
|
| since 2016 | Associate Editor IEEE Transactions on Antennas and Propagation |
Links to ongoing and past projects:
ThoR Tetrahertz end-to-end wireless systems supporting ultra high data Rate applications (2018-2021)
TERAPOD -Terahertz based Ultra High Bandwith Wireless Access Radio Networks (2017-2020)
iBroW - Innovative ultra-BROadband ubiquitous Wireless communications through terahertz transceivers (2015-2018)
TERAPAN - Terahertz communication for Next Generation Wireless Personal Area Networks (2013-2016)
SEMAFOUR - Self-Management for Unified Heterogeneous RAdio Access Networks (2012-2015)
GreenNets - Power consumption and CO2 footprint reduction in mobile networks by advanced automated network management approaches (2011-2013)
SOCRATES / Self-configuration and self-optimising wireless networks (2008-2011)
MOMENTUM / Modelling and Simulation of large-scale UMTS networks (2001-2003)
Videos
IEEE Standards Education: IEEE 802.15: Wireless Personal Area Networks
IEEE Standards Education: Why participate in Standards Developments?
IBroW Project Video
ThoR Project Video
Teropod Project Video
Keynote Speech @ EuCNC 2018 Opening Plenary Video
Interview @ EuCNC 2018 Video
SiMoNe Software Video
Entire publication list
