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 - 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 - Beyer, Sandra A1 - Lohs, Stefan A1 - Nolte, Jörg A1 - Karnapke, Reinhardt A1 - Siegemund, Gerry T1 - Self-Stabilizing Structures for Data Gathering in Wireless Sensor Networks T2 - SENSORCOMM 2015, The Ninth International Conference on Sensor Technologies and Applications, August 23-28, 2015 Venice, Italy Y1 - 2015 SN - 978-1-61208-425-1 SP - 71 EP - 76 PB - IARIA ER - TY - GEN A1 - Büchner, Steffen A1 - Nolte, Jörg A1 - Kraemer, Rolf A1 - Lopacinski, Lukasz A1 - Karnapke, Reinhardt T1 - Challenges for 100 Gbit/s End to End Communication: Increasing Throughput Through Parallel Processing T2 - 40th Annual IEEE Conference on Local Computer Networks, 2015, Clearwater Beach Florida N2 - Today's applications and services become more dependent on fast wireless communication, for the upcoming years data-rate demands of 100Gbit/s can be easily expected. However, fulfilling that demand is a task which cannot simply be solved by upscaling existing technologies. While most of the research tackles the challenges regarding the transmission technology from the physical layer up to base-band processing, we focus on the challenges concerning the handling of that vast amount of data. The overall goal is to bring together the transmission technology with the operating system to create a suitable end-to-end communication solution. In this paper we argue that communication can be understood as a soft-realtime problem and how that helps introducing parallelism into protocol-processing. KW - End2End100, ultra high speed wireless communication, soft real time stream processing Y1 - 2015 UR - http://ieeexplore.ieee.org/xpl/articleDetails.jsp?arnumber=7366337&tag=1 SN - 978-1-4673-6770-7 U6 - https://doi.org/10.1109/LCN.2015.7366337 SP - 398 EP - 401 PB - IEEE CY - Piscataway, NJ ER - TY - GEN A1 - Sieber, André A1 - Nolte, Jörg A1 - Karnapke, Reinhardt T1 - Using Energy Budgets to Reach Lifetime Goals while Compensating Dynamic Effects T2 - SENSORCOMM 2015, The Ninth International Conference on Sensor Technologies and Applications, August 23-28, 2015 Venice, Italy N2 - Nodes within sensor networks often have tight bound goals for the lifetime while running from a non-renewable energy source. Variations within the hardware or induced by the software complicate the prediction of the energy consumption. Additionally, batteries are vulnerable to temperature and non-linear effects. To reach certain lifetime goals under these influences without sacrificing energy due to pessimistic estimations, online energy management is necessary. In this paper, we present policies to control the behavior of applications and devices using energy budgets. First experiments yield promising results, with nodes reaching their lifetime goals while maintaining a high application quality. KW - Wireless Sensor Networks KW - Energy Management KW - Lifetime Goals Y1 - 2015 SN - 978-1-61208-425-1 SP - 7 EP - 13 PB - IARIA ER - TY - GEN A1 - Sieber, André A1 - Nolte, Jörg A1 - Karnapke, Reinhardt T1 - Compensating Dynamic Effects with Budget-based Energy Management to Reach Lifetime Goals T2 - Sensors & Transducers N2 - Nodes within sensor networks often have tight bound goals for the lifetime while running from a non-renewable energy source. Variations within the hardware or induced by the software complicate the prediction of the energy consumption. Additionally, batteries are vulnerable to temperature and non-linear effects. To reach certain lifetime goals under these influences without sacrificing energy due to pessimistic estimations, online energy management is necessary. At Sensorcomm 2015 we presented policies to control the behavior of applications and devices using energy budgets. This paper is an extended version which adds further details and the evaluation of the proposed dynamic energy management in a real-world scenario. KW - Wireless Sensor Networks KW - Energy Management KW - Lifetime Goals Y1 - 2015 SN - 2306-8515 VL - 194 IS - 11 SP - 22 EP - 34 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 -