
Dr. rer. nat. Lars Baumgärtner
Software Technology Group
Contact
baumgaertner@cs.tu-...
work +49 6151 16-21362
Work
S2|02 A206
Hochschulstraße 10
64289
Darmstadt
My current research interests focus on various security topics ranging from mobile devices and apps to the Internet-of-Things. I’m also interested in distributed peer-to-peer systems and disruption-tolerant networking to enable communication in challenged network environments.
Projects
Open Theses
Bachelor Thesis, Master Thesis
Opportunistic- and disruption-tolerant networks enable resilient communication in local communities by epidemically distributing messages. This is beneficial to resist censorship or work in scenarios where global network communication might not be possible or disrupted, e.g., during a disaster or in rural areas. Due to the increased resource usage on all devices by epidemic data dissemination, finding optimal strategies to reduce bandwidth, storage space or increase resilience against local adversarial networking nodes is very important.
Supervisor: Dr. rer. nat. Lars Baumgärtner
Bachelor Thesis, Master Thesis
Unmanned-Ground Vehicles are becoming increasingly important, especially in areas such as disaster recovery. While these robots are highly dependent on communication links, such links are oft also disrupted during disasters. Therefore, it is vital to cope with fluctuating connectivity on the protocol level and provide ways to receive telemetry data and send commands even without direct connections. Intermediate hops can be used to route data, but if even this is not possible, store, carry and forward architectures provide another alternative for such use-cases.
Supervisor: Dr. rer. nat. Lars Baumgärtner
2022/08/03
Bachelor Thesis, Master Thesis
Unmanned-Aerial Vehicles have multiple uses in daily life. Furthermore, in disaster response they are commonly used for tasks such as taking aerial pictures, sensor readings or providing means of communication. Standard protocols for UAV control such as MAVlink are designed for direct real-time links. This limits the range of operation of such a system, especially if the communication infrastructure is damaged, e.g., during a disaster. Thus, alternative extensions build on disruption-tolerant networking which is also used for deep space communication should be explored to increase usability in challenging network conditions.
Supervisor: Dr. rer. nat. Lars Baumgärtner
2022/08/03
Bachelor Thesis
LoRa as a free, long-range communication technology enables many new use-cases. Besides its main use of building IoT sensor networks, it can also be used to build alternative communication infrastructure, e.g., for disaster responses. As LoRa has very limited bandwidth and duty-cycle restrictions, existing communication patterns and protocols from the internet cannot be directly applied here. Different approaches can be explored to maximize the usefulness of such a communication system, e.g., by combining mesh networks and store, carry and forward approaches.
Supervisor: Dr. rer. nat. Lars Baumgärtner
Publications

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