TY - GEN A1 - Mank, Stephan A1 - Karnapke, Reinhardt A1 - Nolte, Jörg T1 - MLMAC - An Adaptive TDMA MAC Protocol for Mobile Wireless Sensor Networks Y1 - 2009 ER - TY - GEN A1 - Mank, Stephan A1 - Karnapke, Reinhardt A1 - Nolte, Jörg T1 - MLMAC-UL and ECTS-MAC - Two MAC Protocols for Wireless Sensor Networks with Unidirectional Links T2 - Third International Conference on Sensor Technologies and Applications, 2009, SENSORCOMM '09 ; 18 - 23 June 2009, Athens/Glyfada, Greece Y1 - 2009 SN - 978-0-7695-3669-9 SP - 623 EP - 629 PB - IEEE CY - Piscataway, NJ ER - TY - GEN A1 - Mank, Stephan A1 - Karnapke, Reinhardt A1 - Nolte, Jörg T1 - MAC Protocols for Wireless Sensor Networks: Tackling the Problem of Unidirectional Links T2 - International journal on advances in networks and services Y1 - 2009 SN - 1942-2644 VL - 2 IS - 4 SP - 218 EP - 229 ER - TY - GEN A1 - Menzel, Hannes A1 - Karnapke, Reinhardt A1 - Büchner, Steffen A1 - Nolte, Jörg T1 - Applying Wireless Sensor Networks to Renaturation Monitoring: From Requirements to Deployment T2 - IFIP Wireless Days (WD) 2014, Rio/Brasil KW - Wireless Sensor Networks KW - Chicken Creek KW - Sens4U Y1 - 2014 U6 - https://doi.org/http://dx.doi.org/10.1109/WD.2014.7020825 PB - IEEE ER - TY - GEN A1 - Nürnberger, Stefan A1 - Karnapke, Reinhardt A1 - Nolte, Jörg T1 - Sensorium - An Active Monitoring System for Neighborhood Relations in Wireless Sensor Networks T2 - Ad hoc networks, second international conference, revised selected papers, ADHOCNETS 2010, Victoria, BC, Canada, August 18 - 20, 2010 Y1 - 2010 SN - 978-3-642-17993-8 SP - 34 EP - 48 PB - Springer CY - Berlin [u.a.] ER - TY - GEN A1 - Peters, David A1 - Karnapke, Reinhardt A1 - Nolte, Jörg ED - Zheng, Jun T1 - Buckshot Routing - A Robust Source Routing Protocol for Dense Ad-Hoc Networks T2 - Ad hoc networks, First International Conference, ADHOCNETS 2009, Niagara Falls, Ontario, Canada, September 22-25, 2009 Y1 - 2009 SN - 978-3-642-11722-0 SP - 268 EP - 283 PB - Springer CY - Berlin [u.a.] ER - TY - GEN A1 - Richter, Martin A1 - Karnapke, Reinhardt A1 - Werner, Matthias T1 - Utilizing sensor and actuator virtualization to achieve a systemic view of mobile heterogeneous cyber-physical systems T2 - Proceedings of the 14th International Conference on Simulation and Modeling Methodologies, Technologies and Applications N2 - When programming cyber-physical systems, application developers currently utilize physical sensors and actuators individually to achieve the desired observations and impacts within the physical world. This is an error-prone and complex task given the size, heterogeneity, and mobility of prevailing cyber-physical systems. We introduce an application model that allows the application developers to take a physical perspective. By means of this model, the programmers describe desired observations and influences with respect to the physical world without directly referencing physical devices. We present an additional model for a runtime environment that transparently utilizes the available physical devices to reach the application developers’ targets. We show that an implementation of our models is functional via simulation. KW - Cyber-Physical Systems KW - Virtualization KW - Mobility KW - Heterogeneity KW - Transparency Y1 - 2024 SN - 978-989-758-708-5 U6 - https://doi.org/10.5220/0012715800003758 SP - 207 EP - 214 PB - SCITEPRESS - Science and Technology Publications ER - TY - GEN A1 - Rotta, Randolf A1 - Chatharajupalli, Navya Sneha A1 - Naumann, Billy A1 - Schulz, Julius A1 - Karnapke, Reinhardt A1 - Werner, Matthias A1 - Nolte, Jörg T1 - Demo: B.A.T.M.A.N. mesh routing on ultra low-power IEEE 802.11 modules T2 - 2024 IEEE 49th Conference on Local Computer Networks (LCN) N2 - When implementing multi-hop mesh network protocols, efficient direct communication, route discovery, and route repair are crucial to achieve high network throughput. To our knowledge, there is no open mesh routing protocol available for ultra low power IEEE 802.11 modules. Previous work relied on single board computers like Raspberry Pi. We implemented the B.A.T.M.A.N. mesh protocol on the popular Espressif ESP32 along with a novel hybrid rate adaptation for the selection of efficient routes. In this demo we showcase challenges and solutions related to the implementation on ESP32 and how the hybrid rate adaptation improves end-to-end throughput. KW - ad-hoc networks KW - mesh networks KW - low power electronics KW - throughput Y1 - 2024 SN - 979-8-3503-8800-8 U6 - https://doi.org/10.1109/LCN60385.2024.10639789 SN - 2832-1421 PB - IEEE ER - TY - CHAP A1 - Sieber, André A1 - Karnapke, Reinhardt A1 - Nolte, Jörg T1 - From Energy Accounting to Energy Management T2 - 13. GI/ITG Fachgespräch Sensornetze, 25. und 26. September 2014 an der Universität Potsdam N2 - Embedded systems, e.g. nodes within sensor networks, often have tight bound goals for lifetime while running from a not renewable energy source. Mostly batteries are used, which are vulnerable to temperature and non-linear effects. Additionally, variations within the hardware or induced by the software make the prediction of the available and consumed energy a complicated task. To reach certain lifetime goals under these influences, online energy management is necessary. For a fine-grained management on the level of individual sub-tasks, it is necessary to know where in the system the energy is consumed. In this work, we extend our online energy accounting approach to enable online energy management. We present ways to control application and device behavior, and, thus, energy using energy budgets. First experiments yield promising results, reaching their lifetime goals while maintaining a high application quality. KW - Energy accounting KW - Energy management KW - Wireless sensor networks Y1 - 2014 SP - 25 EP - 28 PB - Universität CY - Potsdam ER - TY - GEN A1 - Sieber, André A1 - Karnapke, Reinhardt A1 - Nolte, Jörg A1 - Martschei, Thomas T1 - Using Sensor Technology to Protect an Endangered Species: A Case Study T2 - 2011 IEEE 36th Conference on Local Computer Networks (LCN), Bonn, Germany, 4 - 7 October 2011, vol. 2 Y1 - 2011 SN - 978-1-61284-926-3 SP - 1044 EP - 1047 PB - IEEE ER -