Julian Timpner, Stephan Rottmann, and Lars Wolf

2^nd GI/ITG KuVS Fachgespräch Inter-Vehicle Communication (FG-IVC 2014)

Future requirements for drastic reduction of CO2 production and energy consumption will lead to significant changes in the way we see mobility in the years to come.
However, the automotive industry has identified significant barriers to the adoption of electric vehicles, including reduced driving range and greatly increased refueling times.
The V-Charge Project, funded by the European Commission, seeks to address these problems simultaneously by developing an electric automated car, outfitted with close-to-market sensors, which is able to automate valet parking and recharging for integration into a future transportation system.
In this paper, we describe the research challenges associated with providing a wireless V2X communication infrastructure for V-Charge-enabled parking areas.

Stephan Rottmann, Julian Timpner, and Lars Wolf

IEEE Vehicular Networking Conference (VNC) 2014

A model electric vehicle performing automated valet parking and charging is demonstrated.
The vehicle’s missions are transmitted using WLAN based vehicle-to-infrastructure communications by a server back-end which has been developed in the EU FP7 project V-Charge.


@inproceedings{Rottmann:VNC:14,
address = {Paderborn, Germany},
doi = {https://dx.doi.org/10.1109/VNC.2014.7013348},
author = {Rottmann, Stephan and Timpner, Julian and Wolf, Lars C},
booktitle = {Proceedings of the IEEE Vehicular Networking Conference (VNC)},
keywords = {Automated valet parking,Demonstrator,V2I,Vehicular Communications},
month = dec,
publisher = {IEEE},
title = {{Demo: Automated Valet Parking and Charging}},
year = {2014},
pages = {207--208},
}


Julian Timpner, Mario Wozenilek, and Lars Wolf

IEEE Vehicular Networking Conference (VNC) 2014

Vehicular ad hoc networks allow connected vehicles to exchange and share information in order to improve traffic efficiency and safety as well as to provide infotainment functions.
In order to cope with the challenging network conditions of the vehicular domain (e.g., intermittent connectivity), a disruption-tolerant networking architecture is suitable.
In contrast to push-based communications (e.g, cooperative awareness messages) used in many proposed vehicular applications, we focus on a query-response model for requesting sensor information.
Of particular interest to us is the question how vehicular queries can be efficiently routed to a destination area in such challenged environments, and, more importantly, how the response can be routed back to a moving query originator.
We therefore present BGR, a novel disruption-tolerant georouting protocol based on a trail of breadcrumbs left by the query originator.
As an overlay protocol, BGR can be used on top of different georouting mechanisms, providing an efficient means to address moving originators.
We study the influence of parameters, e.g., breadcrumb size and distance, and prove the effectiveness of the proposed solution in an extensive experimental evaluation, showing that BGR achieves significantly higher delivery rates compared to traditional geocast approaches, while avoiding up to 97% of the traffic overhead of Epidemic and PRoPHET routing.


@inproceedings{Timpner:VNC:2014,
address = {Paderborn, Germany},
author = {Timpner, Julian and Wozenilek, Mario and Wolf, Lars},
booktitle = {Proceedings of the IEEE Vehicular Networking Conference (VNC)},
keywords = {DTN,Georouting,V2V,VANET},
doi = {https://dx.doi.org/10.1109/VNC.2014.7013308},
month = dec,
publisher = {IEEE},
pages = {49--56},
title = {{Breadcrumb Routing: Query-Reponse Geocast for Mobile Originators in
Vehicular Networks}},
year = {2014},
}