@misc{GraffKarnapke, author = {Graff, Daniel and Karnapke, Reinhardt}, title = {Managing Swarms of Robots: From Centralized Scheduling to Decentralized Scheduling (work in progress)}, series = {17. GI/ITG KuVS Fachgespr{\"a}ch Sensornetze, 13./14. September 2018, Braunschweig}, journal = {17. GI/ITG KuVS Fachgespr{\"a}ch Sensornetze, 13./14. September 2018, Braunschweig}, publisher = {Technische Universit{\"a}t}, address = {Braunschweig}, doi = {10.24355/dbbs.084-201809121401-1}, url = {http://nbn-resolving.de/urn:nbn:de:gbv:084-2018110614244}, pages = {23 -- 26}, language = {en} } @misc{GraffKarnapke, author = {Graff, Daniel and Karnapke, Reinhardt}, title = {On the Need of Systemic Support for Spatio-Temporal Programming of Mobile Robot Swarms}, series = {11th International Conference on Mobile Ad-hoc and Sensor Networks, (MSN 2015), 16-18 December 2015, Shenzhen, China}, journal = {11th International Conference on Mobile Ad-hoc and Sensor Networks, (MSN 2015), 16-18 December 2015, Shenzhen, China}, publisher = {IEEE}, address = {Piscataway, NJ}, isbn = {978-1-5090-0329-7}, pages = {227 -- 235}, language = {en} } @misc{KarnapkeLohsLagemannetal., author = {Karnapke, Reinhardt and Lohs, Stefan and Lagemann, Andreas and Nolte, J{\"o}rg}, title = {Simulation of Unidirectional Links in Wireless Sensor Networks}, series = {Proceedings of the 7th International ICST Conference on Simulation Tools and Techniques, SIMUTools '14}, journal = {Proceedings of the 7th International ICST Conference on Simulation Tools and Techniques, SIMUTools '14}, publisher = {ICST}, address = {Br{\"u}ssel}, isbn = {978-1-63190-007-5}, pages = {118 -- 125}, language = {en} } @misc{MenzelKarnapkeBuechneretal., author = {Menzel, Hannes and Karnapke, Reinhardt and B{\"u}chner, Steffen and Nolte, J{\"o}rg}, title = {Applying Wireless Sensor Networks to Renaturation Monitoring: From Requirements to Deployment}, series = {IFIP Wireless Days (WD) 2014, Rio/Brasil}, journal = {IFIP Wireless Days (WD) 2014, Rio/Brasil}, publisher = {IEEE}, doi = {http://dx.doi.org/10.1109/WD.2014.7020825}, pages = {4}, language = {en} } @misc{KarnapkeNolte, author = {Karnapke, Reinhardt and Nolte, J{\"o}rg}, title = {BuckshotDV - A robust Routing Protocol for Wireless Sensor Networks with unstable Network Topologies and Unidirectional Links}, series = {SENSORCOMM 2014, The Eighth International Conference on Sensor Technologies and Applications, Lisbon, Portugal}, journal = {SENSORCOMM 2014, The Eighth International Conference on Sensor Technologies and Applications, Lisbon, Portugal}, publisher = {IARIA}, isbn = {978-1-61208-374-2}, pages = {60 -- 65}, abstract = {Experiments have shown that the number of asym- metric and unidirectional links often exceeds the number of bidirectional ones, especially in the transitional area of the communication range of wireless sensor nodes. Still, most of today's routing protocols ignore their existence or try to remove their implications. Also, links are not stable over time, and routes become unusable often, resulting in a need for new routing protocols that can handle highly dynamic links and use unidirectional links to their advantage. In this paper, we present BuckshotDV, a routing protocol which is resilient against link fluctuations and uses the longer reach of unidirectional links to increase its performance. Furthermore, its distance vector nature makes it scalable for large sensor networks.}, language = {en} } @misc{KarnapkeWalther, author = {Karnapke, Reinhardt and Walther, Karsten}, title = {Internet of Things and Real Internet of Things}, series = {20. GI/ITG KuVS Fachgespr{\"a}ch Sensornetze (FGSN 2023)}, journal = {20. GI/ITG KuVS Fachgespr{\"a}ch Sensornetze (FGSN 2023)}, editor = {Piotrowski, Krzysztof}, doi = {10.26127/BTUOpen-6637}, url = {http://nbn-resolving.de/https://nbn-resolving.org/urn:nbn:de:kobv:co1-opus4-66374}, pages = {2 -- 4}, abstract = {Sensor networks have come a long way since their first inception 30 years ago. In this paper we look at the results achieved and the areas that still need research from an industry perspective.}, language = {en} } @misc{BartnitzekKarnapkeFriedenbergeretal., author = {Bartnitzek, Jens and Karnapke, Reinhardt and Friedenberger, Dirk and Milius, Birgit and Naumann, Billy}, title = {Neue Ans{\"a}tze f{\"u}r Systeme zum Einsatz in Wachstumsregionen}, series = {Der Eisenbahningenieur : EI}, journal = {Der Eisenbahningenieur : EI}, number = {8}, issn = {0013-2810}, pages = {34 -- 37}, language = {de} } @misc{ChatharajupalliRottaKarnapkeetal., author = {Chatharajupalli, Navya Sneha and Rotta, Randolf and Karnapke, Reinhardt and Nolte, J{\"o}rg}, title = {Assessing the Feasibility of Combined BLE and Wi-Fi Communication for High Data Sensing Applications}, series = {EWSN '23: Proceedings of the 2023 International Conference on Embedded Wireless Systems and Networks}, journal = {EWSN '23: Proceedings of the 2023 International Conference on Embedded Wireless Systems and Networks}, publisher = {Association for Computing Machinery}, address = {New York}, doi = {10.5555/3639940.3639948}, pages = {56 -- 59}, abstract = {Advanced sensors generate more data than can be transmitted using classic battery-powered wireless sensor networks. While using Wi-Fi would provide plenty of throughput, the receivers are energy hungry and, thus, the radio time needs to be reduced. Previous research suggests to combine Wi-Fi with low-power technologies such as BLE for an energy efficient coordination of the Wi-Fi radios. Existing approaches focus on individual point-to-point routes whereas certain applications require concurrent transmissions. We evaluated the combination of BLE and Wi-Fi on the ESP32-S3 multi-radio microcontroller through detailed energy and throughput measurements. The results show that established BLE connections allow to activateWi-Fi quickly on-demand; the energy efficiency of the data transmission is significantly improved over previous works but the BLE connection setup is prohibitively slow. While the combination of BLE and Wi-Fi provides high throughput with good energy efficiency, careful design of the BLE-based signalling protocol is necessary to also achieve low latency.}, language = {en} }