TY - CHAP A1 - Lagemann, Andreas A1 - Nolte, Jörg A1 - Weyer, Christoph A1 - Turau, Volker T1 - Mission Statement: Applying Self-Stabilization to Wireless Sensor Networks Y1 - 2009 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 - TY - GEN A1 - Prescher, Thomas A1 - Rotta, Randolf A1 - Nolte, Jörg T1 - Flexible Sharing and Replication Mechanisms for Hybrid Memory Architectures T2 - Proceedings of the 4th Many-Core Applications Research Community (MARC) Symposium Y1 - 2011 SN - 978-3-86956-169-1 SP - 67 EP - 72 PB - Univ.-Verl. CY - Potsdam ER - TY - CHAP A1 - Sieber, André A1 - Nolte, Jörg T1 - Utilizing Voltage Decline for Reaching Lifetime Goals T2 - Proceedings of the 10. GI/ITG KuVS Fachgespraech Drahtlose Sensornetze (FGSN 2011), Paderborn, Germany, September 2011 N2 - The battery dictates the lifetime of many embedded systems, especially wireless sensor networks.This makes it necessary to deal with battery management.In this paper we present an approach for a battery management which enables a sensor node to reach a defined lifetime.The presented approach gives feedback to an energy manager if the current power consumption must be lowered or can be increased to reach the runtime goal.In contrast to other systems the battery is handled as black box to keep the system independent from the battery type and brand.First experiments yield promising results of this concept to reach a certain lifetime goal while maintaining a high application quality. KW - wireless sensor networks KW - embedded systems KW - energy KW - battery managment KW - life-time goals Y1 - 2011 N1 - Technical Report TR-RI-11-313 SP - 57 EP - 60 ER - TY - GEN A1 - Rotta, Randolf A1 - Prescher, Thomas A1 - Traue, Jana A1 - Nolte, Jörg T1 - Data Sharing Mechanisms for Parallel Graph Algorithms on the Intel SCC T2 - MARC Symposium at ONERA'2012, July 19th–20th 2012, Toulouse, Frankreich Y1 - 2012 UR - http://hal.archives-ouvertes.fr/hal-00718993 SN - 978-2-7257-0016-8 N1 - Best Paper Award 2012 SP - 13 EP - 18 ER - TY - GEN A1 - Rotta, Randolf A1 - Büchner, Steffen A1 - Nolte, Jörg T1 - Middleware for Many-Cores - Why It Is Needed and What Functionality It Should Provide T2 - 4th USENIX Workshop on Hot Topics in Parallelism (HotPar '12), Berkeley, 2012 N2 - Today's multi-cores and future many-cores are NUMA architectures with complex cache hierarchies and multiple memory channels. Depending on the topologies of these memory networks we find everything from true data sharing with shared caches to distributed memory architectures which just pretend to be physical shared memory systems. In fact, most many-cores are hybrid systems that exhibit the characteristics of both distributed systems and SMPs. In this paper we argue in favor of middleware platforms for many-cores. We will discuss the needed functionality in contrast to common distributed system middleware and present micro benchmarks on several architectures to substantiate our claims. Y1 - 2012 UR - https://www.usenix.org/conference/hotpar12/tech-schedule/poster-session ER - TY - GEN A1 - Rotta, Randolf A1 - Prescher, Thomas A1 - Traue, Jana A1 - Nolte, Jörg T1 - In-Memory Communication Mechanisms for Many-Cores – Experiences with the Intel SCC T2 - TACC-Intel Highly Parallel Computing Symposium (TIHPCS), Austin/Texas, 2012 N2 - Many-core processors combine fast on-chip communication with access to large amounts of shared memory. This makes it possible to exploit the benefits of distributed as well as shared memory programming models within single parallel algorithms. While large amounts of data can be shared in the memory and caches, coordinating the activities of hundreds of cores relies on cross core communication mechanisms with ultra low latency for very small messages. In this paper we discuss two communication protocols for the Intel SCC and compare them to the MPI implementation of the SCC. Our micro-benchmark results underline that special purpose protocols for small messages make much finer levels of parallelism possible than general purpose message passing systems. Index Terms—many-core, message passing, shared memory Y1 - 2012 UR - http://www.tacc.utexas.edu/documents/13601/4234acca-2171-4465-aa48-7592d5e577f9 UR - http://www.tacc.utexas.edu/documents/13601/06d702ab-3f48-4942-9b07-2fbd880d4310 UR - http://www.tacc.utexas.edu/ti-hpcs12 ER - TY - GEN A1 - Lohs, Stefan A1 - Karnapke, Reinhardt A1 - Nolte, Jörg T1 - Link stability in a wireless sensor network - an experimental study T2 - Sensor systems and software, third international ICST conference, revised selected papers, Lisbon, Portugal, June 4 - 5, 2012 KW - wireless sensor networks, link stability, unidirectional links Y1 - 2012 SN - 978-3-642-32777-3 SP - 146 EP - 163 PB - Springer CY - Heidelberg [u.a.] ER - TY - GEN A1 - Lohs, Stefan A1 - Karnapke, Reinhardt A1 - Nolte, Jörg A1 - Lagemann, Andreas T1 - Self-stabilizing Sensor Networks for Emergency Management T2 - Second Workshop on Pervasive Networks for Emergency Management, Lugano, Switzerland, March 2012 KW - Wireless Sensor Networks KW - Fault Tolerance KW - Selfstabilization Y1 - 2012 SN - 978-1-4673-0905-9 SN - 978-1-4673-0906-6 SP - 721 EP - 726 PB - IEEE CY - Piscataway, NJ ER - TY - CHAP A1 - Sieber, André A1 - Nolte, Jörg T1 - Device Management for Limiting the Load Applied to Batteries T2 - Technical Report SEEMOO-TR-2012-03, 11. Fachgespräch Sensornetze der GI/ITG Fachgruppe Kommunikation und Verteilte Systeme, 13.-14. September 2012, Technische Universität Darmstadt Y1 - 2012 UR - http://www.seemoo.tu-darmstadt.de/dl/seemoo/seemoo-tr-2012-03.pdf SP - 15 EP - 18 PB - Technische Universität CY - Darmstadt ER - TY - CHAP A1 - Traue, Jana A1 - Karnapke, Reinhardt A1 - Nolte, Jörg T1 - From Parallel Systems to Wireless Sensor Networks and Back T2 - Technical Report SEEMOO-TR-2012-03, 11. Fachgespräch Sensornetze der GI/ITG Fachgruppe Kommunikation und Verteilte Systeme, 13.-14. September 2012, Technische Universität Darmstadt Y1 - 2012 UR - http://www.seemoo.tu-darmstadt.de/dl/seemoo/seemoo-tr-2012-03.pdf SP - 29 EP - 32 PB - Technische Universität CY - Darmstadt ER - TY - CHAP A1 - Lohs, Stefan A1 - Nolte, Jörg A1 - Siegemund, Gerry A1 - Turau, Volker T1 - Mission Statement: ToleranceZone : A Self-Stabilizing Middleware for Wireless Sensor Netzworks T2 - Technical Report SEEMOO-TR-2012-03, 11. Fachgespräch Sensornetze der GI/ITG Fachgruppe Kommunikation und Verteilte Systeme, 13.-14. September 2012, Technische Universität Darmstadt Y1 - 2012 UR - http://www.seemoo.tu-darmstadt.de/dl/seemoo/seemoo-tr-2012-03.pdf SP - 33 EP - 35 PB - Technische Universität CY - Darmstadt ER - TY - GEN A1 - Siegemund, Gerry A1 - Turau, Volker A1 - Weyer, Christoph A1 - Lohs, Stefan A1 - Nolte, Jörg T1 - An Agile and Stable Neighborhood Protocol for WSNs T2 - Stabilization, Safety, and Security of Distributed Systems, 15th International Symposium, SSS 2013, Osaka, Japan, November 13-16, 2013 KW - WSN, Self-Stabilization, Neighborhood Y1 - 2013 SN - 978-3-319-03089-0 U6 - https://doi.org/10.1007/978-3-319-03089-0_35 SP - 376 EP - 378 PB - Springer CY - Cham ER - TY - GEN A1 - Lohs, Stefan A1 - Karnapke, Reinhardt A1 - Nolte, Jörg T1 - ToleranceZone - A Self-Stabilizing Middleware for Wireless Sensor Networks Y1 - 2013 UR - http://ewsn13.intec.ugent.be/content/posters N1 - EWSN 2013, 10th European Conference on Wireless Sensor Networks, Ghent, February 13-15, 2013 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 - BuckshotDV - A robust Routing Protocol for Wireless Sensor Networks with unstable Network Topologies and Unidirectional Links T2 - SENSORCOMM 2014, The Eighth International Conference on Sensor Technologies and Applications, Lisbon, Portugal N2 - 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. Y1 - 2014 SN - 978-1-61208-374-2 SP - 60 EP - 65 PB - IARIA 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 - Lopacinski, Lukasz A1 - Nolte, Jörg A1 - Büchner, Steffen A1 - Brzozowski, Marcin A1 - Kraemer, Rolf T1 - Design and Implementation of an Adaptive Algorithm for Hybrid Automatic Rrepeat Request T2 - 18th International Symposium on Design and Diagnostics of Electronic Circuits & Systems (DDECS), Belgrade/Serbia, 2015 KW - Adaptive Hybrid Automatic Repeat Request Y1 - 2015 UR - http://ieeexplore.ieee.org/xpls/abs_all.jsp?arnumber=7195708&tag=1 U6 - https://doi.org/10.1109/DDECS.2015.32 SP - 263 EP - 266 PB - IEEE 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 - CHAP A1 - Siegemund, Gerry A1 - Turau, Volker A1 - Lohs, Stefan A1 - Nolte, Jörg T1 - Directed Link Utilization with Mahalle+ T2 - 12. GI-ITG Fachgespräch Sensornetze Y1 - 2013 SP - 29 EP - 32 PB - Brandenburg University of Technology CY - Cottbus ER -