@misc{GraffRoehrigKarnapke, author = {Graff, Daniel and R{\"o}hrig, Daniel and Karnapke, Reinhardt}, title = {Systemic Support of Transaction-Based Spatial-Temporal Programming of Mobile Robot Swarms}, series = {Proceedings of the 40th Annual IEEE Conference on Local Computer Networks LCN 2015, Clearwater Beach, Florida, USA}, journal = {Proceedings of the 40th Annual IEEE Conference on Local Computer Networks LCN 2015, Clearwater Beach, Florida, USA}, publisher = {IEEE}, pages = {730 -- 733}, abstract = {In this paper, we present an approach to support transaction-based spatial-temporal programming of mobile robot swarms on a systemic level. We introduce a programming model for swarms of mobile robots. Swarm applications consist of concurrent, distributed and context-aware actions. We provide distributed transactions in order to guarantee atomic execution of a set of dependent actions. We distinguish between schedulability and executability of a set of actions. In order to guarantee exe- cutability of a distributed transaction of spatial-temporal actions, we present the concept of path alternatives and a time-based two- phase commit protocol in order to assure consistency. We show the feasibility of our approach by a proof-of-concept.}, language = {en} } @misc{KarnapkeKruegerNolte, author = {Karnapke, Reinhardt and Kr{\"u}ger, Maik and Nolte, J{\"o}rg}, title = {In-network Processing and Collective Operations using the COCOS-Framework}, series = {12th IEEE Conference on Emerging Technologies and Factory Automation, ETFA, 25 - 28 Sept. 2007, University of Patras, Greece}, journal = {12th IEEE Conference on Emerging Technologies and Factory Automation, ETFA, 25 - 28 Sept. 2007, University of Patras, Greece}, publisher = {IEEE}, address = {Piscataway, NJ}, isbn = {978-1-4244-0826-9}, pages = {1194 -- 1201}, language = {en} } @misc{KarnapkeKruegerNolte, author = {Karnapke, Reinhardt and Kr{\"u}ger, Maik and Nolte, J{\"o}rg}, title = {Controlling Sensors and Actuators Collectively using the COCOS-Framework}, series = {1st ACM Workshop on Sensor Actor Networks, SANET 2007, held at MobiCom '07, September 9 - 14, 2007, Montreal, Quebec, Canada}, journal = {1st ACM Workshop on Sensor Actor Networks, SANET 2007, held at MobiCom '07, September 9 - 14, 2007, Montreal, Quebec, Canada}, publisher = {Red Hook, NY}, address = {Curran}, isbn = {978-1-60423-389-6}, pages = {53 -- 54}, 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{KarnapkeLohsNolte, author = {Karnapke, Reinhardt and Lohs, Stefan and Nolte, J{\"o}rg}, title = {How to ruin Sensor Network Performance using Duplicate Suppression}, series = {Sensor Systems and Software, 5th International Conference, S-CUBE 2014, Coventry, UK, October 6-7, 2014, Revised Selected Papers}, journal = {Sensor Systems and Software, 5th International Conference, S-CUBE 2014, Coventry, UK, October 6-7, 2014, Revised Selected Papers}, editor = {Kanjo, Eiman and Trossen, Dirk}, publisher = {Springer}, address = {Cham}, isbn = {978-3-319-17135-7}, pages = {20 -- 29}, language = {en} } @misc{KarnapkeNolte, author = {Karnapke, Reinhardt and Nolte, J{\"o}rg}, title = {Buckshot Routing with Distance Vectors in Three Application Scenarios for Wireless Sensor Networks with Unstable Network Topologies and Unidirectional Links}, series = {Journal on Sensors and Transducers}, volume = {185}, journal = {Journal on Sensors and Transducers}, number = {2}, issn = {1726-5479}, pages = {53 -- 67}, abstract = {Experiments have shown that the number of asymmetric 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. At Sensorcomm 2014, we presented 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. This paper is an extended version which adds some implementation details and the evaluation of BuckshotDV in two more application scenarios.}, language = {en} } @misc{KarnapkeNolte, author = {Karnapke, Reinhardt and Nolte, J{\"o}rg}, title = {Triangle Routing in Wireless Sensor Networks with Unidirectional Links Revisited - a Look at Different Scenarios}, series = {International Journal on Advances in Networks and Services}, volume = {17}, journal = {International Journal on Advances in Networks and Services}, number = {1/2}, issn = {1942-2644}, pages = {72}, abstract = {Experiments with wireless sensor networks have shown that links are often asymmetric or unidirectional. This represents a serious problem for many routing protocols, which often depend on bidirectional links. Routing protocols that can use unidirectional links often induce a high overhead. To overcome this problem we introduced Unidirectional Link Triangle Routing, a routing protocol, which uses neighborhood information, gathered actively or passively, to route around unidirectional links. In this paper, we describe Unidirectional Link Triangle Routing in further detail and present additional evaluation results from different application scenarios.}, language = {en} } @misc{KarnapkeNolte, author = {Karnapke, Reinhardt and Nolte, J{\"o}rg}, title = {Unidirectional Link Triangle Routing for Wireless Sensor Networks}, series = {SENSORCOMM 2013, The Seventh International Conference on Sensor Technologies and Applications, Barcelona, Spain}, journal = {SENSORCOMM 2013, The Seventh International Conference on Sensor Technologies and Applications, Barcelona, Spain}, publisher = {IARIA}, isbn = {978-1-61208-296-7}, pages = {7 -- 14}, abstract = {Experiments with wireless sensor networks have shown that asymmetric and unidirectional links do not only exist, but are indeed quite common. Still, many people argue that the gain in connectivity is not worth the effort of making them usable for routing protocols. In this paper, we follow the opposite approach and introduce Unidirectional Link Triangle Routing, which reduces the overhead and, therefore, makes unidirectional links usable on the routing layer.}, language = {en} } @misc{KarnapkeNolte, author = {Karnapke, Reinhardt and Nolte, J{\"o}rg}, title = {Unidirectional Link Counter - a Routing Protocol for Wireless Sensor Networks with Many Unidirectional Links}, series = {14th Annual Mediterranean Ad Hoc Networking Workshop (Med-Hoc-Net 2015), Vilamoura, Portugal, 17 - 18 June 2015}, journal = {14th Annual Mediterranean Ad Hoc Networking Workshop (Med-Hoc-Net 2015), Vilamoura, Portugal, 17 - 18 June 2015}, publisher = {IEEE}, address = {Piscataway}, isbn = {978-1-4673-7306-7}, pages = {1 -- 7}, language = {en} } @misc{KarnapkeNolte, author = {Karnapke, Reinhardt and Nolte, J{\"o}rg}, title = {COPRA - A COmmunication PRocessing Architecture for Wireless Sensor Networks}, series = {Parallel processing, proceedings, 12th International Euro-Par Conference, Dresden, Germany, August 28 - September 1, 2006}, journal = {Parallel processing, proceedings, 12th International Euro-Par Conference, Dresden, Germany, August 28 - September 1, 2006}, publisher = {Springer}, address = {Berlin [u.a.]}, pages = {951 -- 960}, language = {en} }