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Maximilian Köstler

Foto von Maximilian Köstler
Maximilian Köstler

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Publikationen

Florian Kauer, Maximilian Köstler und Volker Turau. Reliable Wireless Multi-Hop Networks with Decentralized Slot Management: An Analysis of IEEE 802.15.4 DSME. Technical Report arXiv:1806.10521, CoRR, Cornell University, August 2018.
@TechReport{Telematik2018, author = {Florian Kauer and Maximilian Köstler and Volker Turau}, title = {Reliable Wireless Multi-Hop Networks with Decentralized Slot Management: An Analysis of IEEE 802.15.4 DSME}, number = {arXiv:1806.10521}, institution = {CoRR}, address = {Cornell University}, month = aug, year = 2018, }
Abstract: Wireless communication is a key element in the realization of the Industrial Internet of Things for flexible and cost-efficient monitoring and control of industrial processes. Wireless mesh networks using IEEE 802.15.4 have a high potential for executing monitoring and control tasks with low energy consumption and low costs for deployment and maintenance. However, conventional medium access techniques based on carrier sensing cannot provide the required reliability for industrial applications. Therefore, the standard was extended with techniques for time-slotted medium access on multiple channels. In this paper, we present openDSME, a comprehensive implementation of the Deterministic and Synchronous Multi-channel Extension (DSME) and propose a method for traffic-aware and decentralized slot scheduling to enable scalable wireless industrial networks. The performance of DSME and our implementation is demonstrated in the OMNeT++ simulator and on a physically deployed wireless network in the FIT/IoT-LAB. It is shown that in the given scenarios, twice as much traffic can be delivered reliably by using DSME instead of CSMA/CA and that the energy consumption can be reduced significantly. The paper is completed by presenting important trade-offs for parameter selection and by uncovering open issues of the current specification that call for further effort in research and standardization.
Maximilian Köstler und Florian Kauer. A Remote Interface for Live Interaction with OMNeT++ Simulations. In Proceedings of the 4th OMNeT++ Community Summit 2017, September 2017. Bremen, Germany.
@InProceedings{Telematik_OMNETPP_2017, author = {Maximilian Köstler and Florian Kauer}, title = {A Remote Interface for Live Interaction with OMNeT++ Simulations}, booktitle = {Proceedings of the 4th OMNeT++ Community Summit 2017}, number = {arXiv:1709.02822}, day = {07-08}, month = sep, year = 2017, location = {Bremen, Germany}, }
Abstract: Discrete event simulators, such as OMNeT++, provide fast and convenient methods for the assessment of algorithms and protocols, especially in the context of wired and wireless networks. Usually, simulation parameters such as topology and traffic patterns are predefined to observe the behaviour reproducibly. However, for learning about the dynamic behaviour of a system, a live interaction that allows changing parameters on the fly is very helpful. This is especially interesting for providing interactive demonstrations at conferences and fairs. In this paper, we present a remote interface to OMNeT++ simulations that can be used to control the simulations while visualising real-time data merged from multiple OMNeT++ instances. We explain the software architecture behind our framework and how it can be used to build demonstrations on the foundation of OMNeT++.
Florian Kauer, Maximilian Köstler, Tobias Lübkert und Volker Turau. OpenDSME - A Portable Framework for Reliable Wireless Sensor and Actuator Networks (Demonstration). In Proceedings of the 3rd International Conference on Networked Systems (NetSys 2017), März 2017, pp. 1–2. Göttingen, Germany.
@InProceedings{Telematik_Netsys_2017, author = {Florian Kauer and Maximilian Köstler and Tobias Lübkert and Volker Turau}, title = {OpenDSME - A Portable Framework for Reliable Wireless Sensor and Actuator Networks (Demonstration)}, booktitle = {Proceedings of the 3rd International Conference on Networked Systems (NetSys 2017)}, pages = {1-2}, day = {13-16}, month = mar, year = 2017, location = {Göttingen, Germany}, }
Abstract: The Deterministic and Synchronous Multi-Channel Extension (DSME) of the IEEE 802.15.4 standard provides a data link layer for time division multiple access in wireless mesh networks. The authors present openDSME, a portable implementation for hardware and simulators which promises reliable message transfer suitable for applications in demanding industrial environments. A demonstration has been developed to illustrate the performance of openDSME in a simulated network and to show its benefits over CSMA/CA.

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