Publications
Conference Contributions | Technical Reports
Conference Contributions
Stefan Unterschütz and Volker Turau. Fail-Safe Over-The-Air Programming and Error Recovery in Wireless Networks. In Proceedings of the 10th Workshop on Intelligent Solutions in Embedded Systems
(WISES'12), June 2012. Klagenfurt, Austria. To be published.
@InProceedings{Telematik_UT_2012_OTAP,
author = {Stefan Unterschütz and Volker Turau},
title = {Fail-Safe Over-The-Air Programming and Error Recovery in Wireless Networks},
booktitle = {Proceedings of the 10th Workshop on Intelligent Solutions in Embedded Systems
(WISES'12)},
day = {5-6},
month = jun,
year = 2012,
location = {Klagenfurt, Austria},
}
Stefan Unterschütz, Andreas Weigel and Volker Turau. Cross-Platform Protocol Development Based on OMNeT++. In Proceedings of the 5th International Workshop on OMNeT++
(OMNeT++'12), March 2012. Desenzano, Italy.
@InProceedings{Telematik_UWT_2012_CometOS,
author = {Stefan Unterschütz and Andreas Weigel and Volker Turau},
title = {Cross-Platform Protocol Development Based on OMNeT++},
booktitle = {Proceedings of the 5th International Workshop on OMNeT++
(OMNeT++'12)},
day = {23},
month = mar,
year = 2012,
location = {Desenzano, Italy},
}
Stefan Unterschütz, Christian Renner and Volker Turau. Opportunistic, Receiver-Initiated Data-Collection Protocol. In Proceedings of the 9th European Conference on Wireless Sensor Networks (EWSN'12), February 2012. Trento, Italy.
@InProceedings{Telematik_URT_2012_Orinoco,
author = {Stefan Unterschütz and Christian Renner and Volker Turau},
title = {Opportunistic, Receiver-Initiated Data-Collection Protocol},
booktitle = {Proceedings of the 9th European Conference on Wireless Sensor Networks (EWSN'12)},
day = {15-17},
month = feb,
year = 2012,
location = {Trento, Italy},
}
Abstract:
This paper presents and evaluates ORiNoCo, a novel data-collection and event-reporting protocol for sensor networks. ORiNoCo is built upon the asynchronous duty-cycle protocol RI-MAC and breaks with the tradition of exchanging extensive neighborhood information, a cornerstone of many competing collection protocols and one of their major source of communication overhead and energy expenditure. The merit of this venture is an opportunistic, energy-efficient, latency-reducing, and self-stabilizing protocol. ORiNoCo comes at virtually no extra costs in terms of memory demand and communication overhead compared to RI-MAC. We derive theoretical boundaries for the improvements in radio efficiency, latency, and energy-consumption. ORiNoCo is verified with these findings via simulation and compared with CTP. ORiNoCo achieves lower energy-consumption while reducing end-to-end delays.
Stephan Kubisch, Michael Randt, Reiner Buck, Andreas Pfahl and Stefan Unterschütz. Wireless Heliostat and Control System for Large
Self-Powered Heliostat Fields. In Proceedings of the 17th International Symposium on
Concentrated Solar Power and Chemical Energy Technologies
(SolarPACES'11), September 2011. ,Granada Spain.
@InProceedings{Telematik_U_2011_HELIOMESH,
author = {Stephan Kubisch and Michael Randt and Reiner Buck and Andreas Pfahl and Stefan Unterschütz},
title = {Wireless Heliostat and Control System for Large
Self-Powered Heliostat Fields},
booktitle = {Proceedings of the 17th International Symposium on
Concentrated Solar Power and Chemical Energy Technologies
(SolarPACES'11)},
day = {20-23},
month = sep,
year = 2011,
location = {,Granada Spain},
}
Stefan Unterschütz and Volker Turau. Construction of Connected Dominating Sets in
Large-Scale MANETs Exploiting Self-Stabilization. In Proceedings of the 5th International Workshop on
Localized
Algorithms and Protocols for Wireless Sensor Networks
(LOCALGOS'11), June 2011. Barcelona, Spain.
@InProceedings{Telematik_UT_2011_CDS,
author = {Stefan Unterschütz and Volker Turau},
title = {Construction of Connected Dominating Sets in
Large-Scale MANETs Exploiting Self-Stabilization},
booktitle = {Proceedings of the 5th International Workshop on
Localized
Algorithms and Protocols for Wireless Sensor Networks
(LOCALGOS'11)},
day = {29},
month = jun,
year = 2011,
location = {Barcelona, Spain},
}
Stefan Unterschütz. Methodologies for Comparing Clustering
Algorithms in
Wireless Sensor Networks. In First IEEE Germany Student Conference in
Electrical and Computer Engineering (ISC'09), May 2009. Hamburg, Germany.
@InProceedings{Telematik_UT_2009_CLustering,
author = {Stefan Unterschütz},
title = {Methodologies for Comparing Clustering
Algorithms in
Wireless Sensor Networks},
booktitle = {First IEEE Germany Student Conference in
Electrical and Computer Engineering (ISC'09)},
day = {15},
month = may,
year = 2009,
location = {Hamburg, Germany},
}
Technical Reports
Christian Renner, Stefan Unterschütz and Volker Turau. Power Management for Wireless Sensor Networks Based on
Energy Budgets. Technical Report urn:nbn:de:gbv:830-tubdok-11065, Hamburg University of Technology, Hamburg, Germany, July 2011.
@TechReport{Renner_Unterschuetz_PowerManagement-TechReport,
author = {Christian Renner and Stefan Unterschütz and Volker Turau},
title = {Power Management for Wireless Sensor Networks Based on
Energy Budgets},
number = {urn:nbn:de:gbv:830-tubdok-11065},
institution = {Hamburg University of Technology},
address = {Hamburg, Germany},
month = jul,
year = 2011,
}
Abstract:
This paper proposes and assesses analytical tools for
large-scale
monitoring applications with wireless sensor networks
powered by
energy-harvesting supplies. We introduce the concept of an
energy
budget, the amount of energy available to a sensor node for a
given period of time. The presented tools can be utilized to
realize
distributed algorithms that determine a schedule to
perform the
monitoring task and the inherent communication.
Scheduling is based on
the energy budgets of the nodes or on
latency requirements. In this
context, we derive theoretical
results for the energy consumption of
the individual nodes plus
the latency of event-reporting. These
results are verified by
simulations and a real testbed implementation.
Christoph Weyer, Stefan Unterschütz and Volker Turau. Connectivity-aware Neighborhood Management Protocol in
Wireless Sensor Networks. In Proceedings of the 7th GI/ITG KuVS Fachgespräch
"Drahtlose Sensornetze" (FGSN'08), September 2008. Berlin, Germany.
@InProceedings{Telematik_WUT_2008_Mahalle,
author = {Christoph Weyer and Stefan Unterschütz and Volker Turau},
title = {Connectivity-aware Neighborhood Management Protocol in
Wireless Sensor Networks},
booktitle = {Proceedings of the 7th GI/ITG KuVS Fachgespräch
"Drahtlose Sensornetze" (FGSN'08)},
day = {25-26},
month = sep,
year = 2008,
location = {Berlin, Germany},
}
Abstract:
Neighborhood relations are changing over time in
wireless sensor networks due to different hardware or environmental
effects. These effects and memory limitations require a balanced
neighborhood management to ensure agility, stability, symmetry, and
connectivity. The proposed neighborhood management protocol Mahalle
is optimized with regard to these four criteria. Agility and
stability are achieved by ALE, a new adaptive link estimator.