| Carl Friedrich Gauß Faculty | Department of Computer Science

OPTraCom - Opportunistic Public Transport Communication


An area wide collection of different sensor data within metropolitan areas opens up a large application range. One example is air pollution that can be measured in fine-granular way, in order to inform residents more comprehensively and optimize the traffic management in the city area. Public means of transport operate regularly and approximately in the entire city. Thus, they well suited for this purpose. They cannot only collect environmental data, but also seize operational data from technical equipment along the roadside. Presently, an efficient networking to for the prompt evaluation of the collected data cannot be realized with private or cellular mobile radio solutions at reasonable costs. In this cooperative project between the BBR Verkehrstechnik and the Institute of Operating Systems and Computer Networks at TU Braunschweig we plan to develop a novel disruption-tolerant communication system on basis of WLAN. Thereby, vehicles store the collected data, exchange them among themselves and this way transport it gradually to the receiver. An area-wide infrastructure becomes is not needed. The main research aspects within this project are efficient strategies for routing and data dissemination within the network. The efficiency of the system will be evaluated with the help of real-world experiments in the city of Braunschweig. The results will help us to examine the system's potential for further applications.

Main Research Topics

The main research topics we deal with in the context of Optracom are in the following fields:

  • Routing mechanisms for DTNs

  • Information dissemination in public transportation networks on the basis of DTNs

  • Field tests for analyzing the DTN performance in real environments


Further publications are in preparation and under review. For further information we also provide publications in which we established the basis for the Optracom project.

Press releases, links and downloads

Project members

Prof. Dr.-Ing. Lars Wolfwolf[[at]]ibr.cs.tu-bs.de+49-531-3913288138
Dr. Michael Doeringmdoering[[at]]ibr.cs.tu-bs.de
Dr. Johannes Morgenrothmorgenroth[[at]]ibr.cs.tu-bs.de
BBR Verkehrstechnik


Entwurf und Implementierung eines Werkzeugs zur Erzeugung von AbdeckungskartenBachelor ThesisDr. Michael Doeringfinished
Entwurf und Implementierung eines DTN-basierten Systems zum Update von FahrgastinformationsanzeigernBachelor ThesisDr. Michael Doering, Dr. Sven Lahdefinished
Entwurf und Implementierung eines intelligenten (De-)Fragmentierungsverfahrens für replizierende DTN-RoutingprotokolleStudienarbeitDr. Michael Doeringfinished
Analyse der Sicherheitsanforderung und Security-Hardening eines Kommunikationssystems für FahrzeugnetzeStudienarbeitDr. Michael Doeringfinished
Konzeption und Durchführung von Penetrationstests für Embedded-Systeme in FahrzeugnetzenDiploma ThesisDr. Michael Doeringfinished
Entwurf und Analyse eines DTN-Routingverfahrens für ÖPNV-NetzeDiploma ThesisDr. Michael Doering, Dr. Sven Lahdefinished
Entwurf und Implementierung eines Verwaltungsprogramms für Zug-ErkennungssystemeProject ThesisDr. Michael Doeringfinished
Design and Implementation of Utility Functions for Routing in Vehicular Disruption Tolerant NetworksBachelor ThesisDr. Michael Doeringfinished
Design und Implementierung eines Weckmoduls zur Steigerung der Energieeffizienz solarbetriebener WLAN-AccesspointsStudienarbeitDr. Michael Doeringfinished
Entwicklung einer Anwendungsschnittstelle zur Anbindung moderner Programmiersprachen an die IBR-DTN ImplementierungBachelor ThesisDr. Johannes Morgenrothfinished
Entwicklung einer Erweitungsschnittstelle zur Anbindung externer Module an die IBR-DTN ImplementierungBachelor ThesisDr. Johannes Morgenrothfinished
Sicherheitsaspekte in unterbrechungstoleranten Netzen basierend auf dem Bundle ProtocolBachelor ThesisDr. Johannes Morgenroth, Dr. Sebastian Schildtfinished
Entwurf und Implementierung von Sicherheitsmechanismen für IBR-DTNBachelor ThesisDr. Johannes Morgenrothfinished
Entwicklung eines persistenten Speichers für IBR-DTNBachelor ThesisDr. Johannes Morgenrothfinished
Design and Implementation of Dynamic Routing Updates for Vehicular Disruption Tolerant Networks Master ThesisDr. Michael Doeringfinished

HiWi Jobs

Mehrere Hiwi-Stellen im Bereich Delay Tolerant NetworkingHiWi JobDr. Michael Doeringfinished
Implementierung eines perfekten DTN-RoutersHiWi JobDr. Michael Doeringfinished


This project is funded by the European Community within the European Regional Development Fund (ERDF).

Further Information

For further information please contact Dr. Michael Doering, Dr. Johannes Morgenroth or Prof. Dr.-Ing. Lars Wolf.

last changed 2011-06-08, 17:23 (dynamic content) by Prof. Dr.-Ing. Lars Wolf