2020
Jaeckel, Stephan; Raschkowski, Leszek; Thiele, Lars
A 5G-NR Satellite Extension for the QuaDRiGa Channel Model Proceedings Article Forthcoming
In: IEEE 93rd Vehicular Technology Conference: VTC2021-Spring, Forthcoming.
Abstract | Links | BibTeX | Tags: 5G, channel model, QuaDRiGa, satellite
@inproceedings{Jaeckel2020,
title = {A 5G-NR Satellite Extension for the QuaDRiGa Channel Model},
author = {Stephan Jaeckel and Leszek Raschkowski and Lars Thiele},
url = {https://arxiv.org/abs/2010.01002},
year = {2020},
date = {2020-10-01},
urldate = {2020-10-01},
booktitle = {IEEE 93rd Vehicular Technology Conference: VTC2021-Spring},
abstract = {Low Earth orbit (LEO) satellite networks will become an integral part of the global telecommunication infrastructure. Modeling the radio-links of these networks and their interaction with existing terrestrial systems is crucial for the design, planning and scaling of these networks. The 3rd generation partnership project (3GPP) addressed this by providing guideline for such a radio-channel model. However, the proposed model lacks a satellite orbit model and has some inconsistencies in the provided parameters. This is addressed in this paper. We provide a non-geostationary-satellite model that can be integrated into geometry-based stochastic channel models (GSCMs) such as QuaDRiGa. We then use this model to obtain the GSCM parameters from a simplified environment model and compare the results to the 3GPP parameter-set. This solves the inconsistencies, but our simplified approach does not consider many propagation effects. Future work must therefore rely on measurements or accurate Ray-tracing models to obtain the parameters.},
keywords = {5G, channel model, QuaDRiGa, satellite},
pubstate = {forthcoming},
tppubtype = {inproceedings}
}
2019
Jaeckel, Stephan; Raschkowski, Leszek; Burkhardt, Frank; Thiele, Lars
A Spatially Consistent Geometric D2D Small-Scale Fading Model for Multiple Frequencies Proceedings Article
In: 2019 IEEE 90th Vehicular Technology Conference (VTC2019-Fall), pp. 1-5, 2019, ISSN: 2577-2465.
Abstract | Links | BibTeX | Tags: channel model, D2D, spatial consistency
@inproceedings{8891407,
title = {A Spatially Consistent Geometric D2D Small-Scale Fading Model for Multiple Frequencies},
author = {Stephan Jaeckel and Leszek Raschkowski and Frank Burkhardt and Lars Thiele},
doi = {10.1109/VTCFall.2019.8891407},
issn = {2577-2465},
year = {2019},
date = {2019-09-01},
urldate = {2019-09-01},
booktitle = {2019 IEEE 90th Vehicular Technology Conference (VTC2019-Fall)},
pages = {1-5},
abstract = {The 3rd generation partnership project (3GPP) new radio (NR) channel model introduced spatial consistency and a correlation model for multiple frequencies. Future extensions of this model will incorporate mobility at both ends of the link. These features are essential for many emerging wireless technologies in the 5G era. However, the existing small-scale-fading (SSF) model does not integrate these features coherently. To solve this problem, we propose a new SSF model that seamlessly integrates with the remaining NR model and allows the simultaneous simulation of all three features. We demonstrate this integration by showing that the output of the new SSF model agrees well with large-scale fading (LSF) parameter distributions provided by 3GPP. This enables the simulation of new wireless technology proposals that were difficult to realize with existing geometry-based stochastic channel models (GSCMs).},
keywords = {channel model, D2D, spatial consistency},
pubstate = {published},
tppubtype = {inproceedings}
}
Guan, Ke; He, Danping; Ai, Bo; Peng, Bile; Hrovat, Andrej; Kim, Junhyeong; Zhong, Zhangdui; Kürner, Thomas
Millimeter-Wave Communications for Smart Rail Mobility: From Channel Modeling to Prototyping Proceedings Article
In: 2019 IEEE International Conference on Communications Workshops (ICC Workshops), pp. 1-6, 2019, ISSN: 2474-9133.
Abstract | Links | BibTeX | Tags: channel model, mmWave
@inproceedings{8757021,
title = {Millimeter-Wave Communications for Smart Rail Mobility: From Channel Modeling to Prototyping},
author = {Ke Guan and Danping He and Bo Ai and Bile Peng and Andrej Hrovat and Junhyeong Kim and Zhangdui Zhong and Thomas K\"{u}rner},
doi = {10.1109/ICCW.2019.8757021},
issn = {2474-9133},
year = {2019},
date = {2019-05-01},
urldate = {2019-05-01},
booktitle = {2019 IEEE International Conference on Communications Workshops (ICC Workshops)},
pages = {1-6},
abstract = {In this paper, we present an integration solution from channel modeling to prototyping, to realize millimeter-wave (mmWave) communications for smart rail mobility. In order to involve the railway features in the channel models, two mmWave channel models are established based on ray-tracing simulations in realistic railway scenarios. Moreover, the challenges raised by mmWave directional network under high mobility is overcome by our solutions concerning handover scheme, random access procedure, and beamforming strategies. By integrating these key enabling technologies, we prototype the mobile hotspot network (MHN) system which realizes 1.25 Gbps downlink data throughput in a subway line with the train speed of 80 km/h.},
keywords = {channel model, mmWave},
pubstate = {published},
tppubtype = {inproceedings}
}