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Florian Kauer

Foto von Florian Kauer
Dr.-Ing. Florian Kauer
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Florian Kauer geb. Meier

Im Oktober 2013 habe ich mein Master-Studium Informatik-Ingenieurwesen an der TU Hamburg-Harburg abgeschlossen. Seit November 2013 bin ich als wissenschaftlicher Mitarbeiter am Institut für Telematik tätig.

Projekte

Publikationen

Florian Kauer, Maximilian Köstler und Turau Volker. openDSME: Reliable Time-Slotted Multi-Hop Communication for IEEE 802.15.4. Recent Advances in Network Simulation, 451–467, Mai 2019.
@Article{Telematik_omnet_2019_springer, author = {Florian Kauer and Maximilian K{\"o}stler and Turau Volker}, title = {openDSME: Reliable Time-Slotted Multi-Hop Communication for IEEE 802.15.4}, pages = {451-467}, journal = {Recent Advances in Network Simulation}, publisher = {Springer}, month = may, year = 2019, }
Abstract: Using wireless sensor and actuator networks in industrial applications promises timely and fine-grained feedback and control of plants. However, these applications call for very high reliability that cannot be fulfilled with contention-based medium access. Therefore, the IEEE 802.15.4 standard was extended with multiple time-slotted as well as frequency-agile medium access techniques. The Deterministic and Synchronous Multi-Channel Extension (DSME) is of particular interest due to its extensive set of standardized methods for distributed slot management. This chapter presents openDSME, a comprehensive implementation of DSME to be used in the OMNeT++ simulator as well as on real-life wireless sensor nodes. The main features of DSME are presented, together with implementation details of openDSME. The chapter concludes with a step-by-step tutorial to get started with openDSME.
Janina Hellwege, Maximilian Köstler und Florian Kauer. Live Monitoring and Remote Control of OMNeT++ Simulations. Recent Advances in Network Simulation, 301–316, Mai 2019.
@Article{Telematik_omnet_2019, author = {Janina Hellwege and Maximilian K{\"o}stler and Florian Kauer}, title = {Live Monitoring and Remote Control of OMNeT++ Simulations}, pages = {301-316}, journal = {Recent Advances in Network Simulation}, publisher = {Springer}, month = may, year = 2019, }
Abstract: Using event-based simulations is an excellent method for demonstrating and learning the functionality of computer networks. OMNeT++ provides many features for building and analyzing networks and is widely used in research and teaching. It is, however, difficult to influence a running simulation and the interfaces are more optimized for in-depth analyses so it is easy to get distracted from the main point of interest. This motivation led to the development of a remote interface for the OMNeT++ simulator that facilitates live modifications of parameters as well as monitoring of events. It is based on web technologies and allows for convenient creation of customized interactive interfaces for conferences, fairs, or teaching environments.
Florian Kauer. Scalable Wireless Multi-Hop Networks for Industrial Applications. PhD Thesis, Hamburg University of Technology, Hamburg, Germany, 2019.
@PhdThesis{Telematik_Kauer_2019_Diss, author = {Florian Kauer}, title = {Scalable Wireless Multi-Hop Networks for Industrial Applications}, school = {Hamburg University of Technology}, address = {Hamburg, Germany}, year = 2019, }
Abstract: Wireless technology promises flexible and cost-efficient machine-to-machine communication. However, high packet loss can emerge from simultaneous transmissions of many devices, undermining the reliability required for industrial applications. This thesis analyzes and develops techniques for time-slotted multi-hop communication with focus on IEEE 802.15.4 DSME. In a holistic approach, simulations, formal and analytical analyses and testbed experiments are combined, concluding the utility of the proposed methods. For future usage in research and real-world deployments, openDSME is developed as open-source implementation of DSME and application-specific insights are provided.
Florian Kauer und Volker Turau. An Analytical Model for Wireless Mesh Networks with Collision-Free TDMA and Finite Queues. EURASIP Journal on Wireless Communications and Networking, Juni 2018.
@Article{Telematik_openaccess_2018, author = {Florian Kauer and Volker Turau}, title = {An Analytical Model for Wireless Mesh Networks with Collision-Free TDMA and Finite Queues}, pages = , journal = {EURASIP Journal on Wireless Communications and Networking}, volume = {}, month = jun, year = 2018, }
Abstract: Wireless mesh networks are a promising technology for connecting sensors and actuators with high flexibility and low investment costs. In industrial applications, however, reliability is essential. Therefore, two time-slotted medium access methods, DSME and TSCH, were added to the IEEE 802.15.4 standard. They allow collision-free communication in multi-hop networks and provide channel hopping for mitigating external interferences. The slot schedule used in these networks is of high importance for the network performance. This paper supports the development of efficient schedules by providing an analytical model for the assessment of such schedules, focused on TSCH. A Markov chain model for the finite queue on every node is introduced that takes the slot distribution into account. The models of all nodes are interconnected to calculate network metrics such as packet delivery ratio, end-to-end delay, and throughput. An evaluation compares the model with a simulation of the Orchestra schedule. The model is applied to Orchestra as well as to two simple distributed scheduling algorithms to demonstrate the importance of traffic-awareness for achieving high throughput.
Florian Kauer, Emil Kallias und Volker Turau. A Dual-Radio Approach for Reliable Emergency Signaling in Critical Infrastucture Assets with Large Wireless Networks. International Journal of Critical Infrastructure Protection, Available online 23 February 2018:33–46, Februar 2018.
@Article{Telematik_Kauer_2018, author = {Florian Kauer and Emil Kallias and Volker Turau}, title = {A Dual-Radio Approach for Reliable Emergency Signaling in Critical Infrastucture Assets with Large Wireless Networks}, pages = {33-46}, journal = {International Journal of Critical Infrastructure Protection}, volume = {Available online 23 February 2018}, month = feb, year = 2018, }
Abstract: Wireless communications techniques are finding their way into industrial applications, but commercial wireless technologies lack the dependability required for critical applications in very large networks. In many wireless-controlled industrial facilities, safety regulations mandate real-time communications for tasks such as emergency shutdowns. This requires a wireless communications architecture that supports the coexistence of non-real-time and real-time tasks. To address this requirement, this paper proposes an architecture that augments a wireless mesh network with a unidirectional long-range communications system. Various configuration parameters of the system, including its security features, are optimized. Additionally, a physical realization of the architecture is evaluated using a series of experiments, including some performed on a real solar tower power plant. The experimental results demonstrate that the extension of a wireless mesh network with a unidirectional long-range communications system provides safety and scalability for industrial applications while promoting cost effectiveness and energy efficiency.

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