TY - GEN A1 - Graff, Daniel A1 - Röhrig, Daniel A1 - Karnapke, Reinhardt T1 - Systemic Support of Transaction-Based Spatial-Temporal Programming of Mobile Robot Swarms T2 - Proceedings of the 40th Annual IEEE Conference on Local Computer Networks LCN 2015, Clearwater Beach, Florida, USA N2 - 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. Y1 - 2015 SP - 730 EP - 733 PB - IEEE ER - TY - GEN A1 - Karnapke, Reinhardt A1 - Krüger, Maik A1 - Nolte, Jörg T1 - In-network Processing and Collective Operations using the COCOS-Framework T2 - 12th IEEE Conference on Emerging Technologies and Factory Automation, ETFA, 25 - 28 Sept. 2007, University of Patras, Greece Y1 - 2007 SN - 978-1-4244-0826-9 SP - 1194 EP - 1201 PB - IEEE CY - Piscataway, NJ ER - TY - GEN A1 - Karnapke, Reinhardt A1 - Krüger, Maik A1 - Nolte, Jörg T1 - Controlling Sensors and Actuators Collectively using the COCOS-Framework T2 - 1st ACM Workshop on Sensor Actor Networks, SANET 2007, held at MobiCom '07, September 9 - 14, 2007, Montreal, Quebec, Canada Y1 - 2007 SN - 978-1-60423-389-6 SP - 53 EP - 54 PB - Red Hook, NY CY - Curran ER - TY - GEN A1 - Karnapke, Reinhardt A1 - Lohs, Stefan A1 - Lagemann, Andreas A1 - Nolte, Jörg T1 - Simulation of Unidirectional Links in Wireless Sensor Networks T2 - Proceedings of the 7th International ICST Conference on Simulation Tools and Techniques, SIMUTools '14 Y1 - 2014 SN - 978-1-63190-007-5 SP - 118 EP - 125 PB - ICST CY - Brüssel ER - TY - GEN A1 - Karnapke, Reinhardt A1 - Lohs, Stefan A1 - Nolte, Jörg ED - Kanjo, Eiman ED - Trossen, Dirk T1 - How to ruin Sensor Network Performance using Duplicate Suppression T2 - Sensor Systems and Software, 5th International Conference, S-CUBE 2014, Coventry, UK, October 6-7, 2014, Revised Selected Papers Y1 - 2015 SN - 978-3-319-17135-7 SN - 978-3-319-17136-4 SP - 20 EP - 29 PB - Springer CY - Cham ER - TY - GEN A1 - Karnapke, Reinhardt A1 - Nolte, Jörg T1 - Buckshot Routing with Distance Vectors in Three Application Scenarios for Wireless Sensor Networks with Unstable Network Topologies and Unidirectional Links T2 - Journal on Sensors and Transducers N2 - 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. Y1 - 2015 SN - 1726-5479 SN - 2306-8515 VL - 185 IS - 2 SP - 53 EP - 67 ER - TY - GEN A1 - Karnapke, Reinhardt A1 - Nolte, Jörg T1 - Triangle Routing in Wireless Sensor Networks with Unidirectional Links Revisited - a Look at Different Scenarios T2 - International Journal on Advances in Networks and Services N2 - 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. Y1 - 2014 SN - 1942-2644 VL - 17 IS - 1/2 SP - 72 ER - TY - GEN A1 - Karnapke, Reinhardt A1 - Nolte, Jörg T1 - Unidirectional Link Triangle Routing for Wireless Sensor Networks T2 - SENSORCOMM 2013, The Seventh International Conference on Sensor Technologies and Applications, Barcelona, Spain N2 - 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. Y1 - 2013 SN - 978-1-61208-296-7 SP - 7 EP - 14 PB - IARIA ER - TY - GEN A1 - Karnapke, Reinhardt A1 - Nolte, Jörg T1 - Unidirectional Link Counter - a Routing Protocol for Wireless Sensor Networks with Many Unidirectional Links T2 - 14th Annual Mediterranean Ad Hoc Networking Workshop (Med-Hoc-Net 2015), Vilamoura, Portugal, 17 - 18 June 2015 Y1 - 2015 SN - 978-1-4673-7306-7 SP - 1 EP - 7 PB - IEEE CY - Piscataway ER - TY - GEN A1 - Karnapke, Reinhardt A1 - Nolte, Jörg T1 - COPRA - A COmmunication PRocessing Architecture for Wireless Sensor Networks T2 - Parallel processing, proceedings, 12th International Euro-Par Conference, Dresden, Germany, August 28 - September 1, 2006 Y1 - 2006 SP - 951 EP - 960 PB - Springer CY - Berlin [u.a.] ER -