Matthias Schwamborn

Matthias Schwamborn
German Aerospace Center (DLR) | DLR · Institute of Transportation Systems

Dr. rer. nat.

About

19
Publications
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467
Citations

Publications

Publications (19)
Technical Report
Full-text available
This Deliverable 6.2 of the TransAID project presents and evaluates the simulation results obtained for the scenarios considered during the project's first and second iterations. To this end, driver- and AV-models designed in WP3, traffic management procedures developed in WP4, and V2X communication protocols and models from WP5 were implemented wi...
Article
Full-text available
This Deliverable 6.2 of the TransAID project presents and evaluates the simulation results obtained for the scenarios considered during the project's first and second iterations. To this end, driver- and AV-models designed in WP3, traffic management procedures developed in WP4, and V2X communication protocols and models from WP5 were implemented wi...
Article
Full-text available
The TransAID project defines, develops and evaluates traffic management measures based on V2X equipped road infrastructure, primarily via simulations,to eliminate or mitigate the negative effects of Transition of Control (ToC) along Transition Areas in future mixed traffic scenarios where automated, cooperative, and conventional vehicles will coexi...
Conference Paper
Human mobility has been shown to have significant impact on the performance of Opportunistic Networks. For reliable performance evaluation, it is important to make sure the models used are in steady state. The mobility model Small World In Motion (SWIM) incorporates statistical properties of human movements in its results and is, at the same time,...
Technical Report
Full-text available
This Deliverable 6.2 of the TransAID project presents and evaluates the simulation results obtained for the scenarios considered during the project’s first iteration. To this end, driver-and AV-models designed in WP3, traffic management procedures developed in WP4, and V2X communication protocols and models from WP5 were implemented within the iTET...
Article
Full-text available
This Deliverable 6.2 of the TransAID project presents and evaluates the simulation results obtained for the scenarios considered during the project's first iteration. To this end, driver- and AV-models designed in WP3, traffic management procedures developed in WP4, and V2X communication protocols and models from WP5 were implemented within the iTE...
Conference Paper
Mobile Instant Messaging (MIM) applications, such as WhatsApp, are becoming more and more popular today. With the increasing number of messages, a realistic model for this traffic is needed. This paper surveys the characteristics of MIM, Instant Messaging (IM) and Short Message Service (SMS), which are found in the literature. In addition, it also...
Article
Human mobility has been shown to have a significant impact on the performance evaluation in Opportunistic Networks. As shown in previous work, the integration of geographic restrictions is (1) a further step towards more credibility of Opportunistic Network simulative performance evaluation, and (2) influences relevant metrics, such as contact dura...
Article
Although a realistic simulation of wireless networks mainly depends on a proper model of radio wave propagation, it is common to simply assume a fixed, circular range of communication. It has been shown that mobility models affect the results of the performance evaluation of wireless networks, e.g., contact and inter-contact times for opportunistic...
Conference Paper
Among other statistical features, the analysis of fine-grained GPS traces from different outdoor scenarios has shown that human mobility statistically resembles Lévy Walks and led to the design of the Self-similar Least-Action Walk (SLAW) mobility model. It was concluded that human mobility is scale-free and that this feature is invariant irrespect...
Conference Paper
Research in the area of Wireless Sensor Networks (WSNs) has been immense during the last years. Since highly resource-constrained, WSNs pose specific challenges to the design and implementation of protocols and algorithms. In order to test, compare, and verify the intended functionality of new approaches, performance evaluations must be conducted i...
Conference Paper
The growing range of Wireless Sensor Network (WSN) applications, their long-life and large-scale design, as well as various deployment fields necessitate the feasibility of remote maintenance and reprogramming of in-situ sensor nodes. The network-wide dissemination of program code is not appropriate in every WSN due to the heterogeneity of sensor h...
Conference Paper
Wireless Sensor Networks (WSNs) are deployed in a wide range of application scenarios. These typically involve monitoring or surveillance of animals or humans, infrastructure, or territories. Since security as well as privacy play an increasingly important role in these contexts, sensor nodes and sensor networks need to be protected from spurious e...
Article
When modeling mobility in urban scenarios, uniform distributions of the destinations can only be realized when geographic restrictions are considered. We present a straight-forward approach using maps (such as OpenStreetMap (OSM)) to get the desired distributions. Following this approach, it is possible to generate destinations and movements follow...
Article
Realistic, scenario-dependent mobility modeling is crucial for the reliable performance evaluation of wireless networks. For opportunistic networks several measured movement traces are available. However, for scalability and abstraction of the measured scenarios, synthetic mobility models are needed. In the last decade a significant number of synth...
Conference Paper
Realistic modeling of the nodes' mobility is essential for obtaining credible results from the simulative performance evaluation of wireless multi-hop networks. However, most of the mobility models in the literature have not been validated with real world movement traces. To overcome this issue, we follow a trace-based approach to mobility modeling...
Article
Simulation and emulation are techniques frequently used for performance evaluation of wireless multi-hop networks. If the wireless devices are mobile, the movement patterns of these objects are found to have significant impact on the simulation and emulation results. This is quite obvious as the movements influence the topology of the network. In t...

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Projects (4)