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Documents authored by Fischer, Stefan

Document
DOI: 10.4230/OASIcs.MCPS.2014.15
An Approach to Integrate Distributed Systems of Medical Devices in High Acuity Environments

Authors: David Gregorczyk, Stefan Fischer, Timm Busshaus, Stefan Schlichting, and Stephan Pöhlsen

Published in: OASIcs, Volume 36, 5th Workshop on Medical Cyber-Physical Systems (2014)

Abstract
This paper presents a comprehensive solution to build a distributed system of medical devices in high acuity environments. It is based on the concept of a Service Oriented Medical Device Architecture. It uses the Devices Profile for Web Services as a transport layer protocol and enhances it to the Medical Devices Profile for Web Service (MDPWS) to meet medical requirements. By applying the ISO/IEEE 11073 Domain Information Model, device data can be semantically described and exchanged by means of a generic service interface. Data model and service interface are subsumed under the Basic Integrated Clinical Environment Specification (BICEPS). MDPWS and BICEPS are implemented as part of the publically available openSDC stack. Performance measurements and a real world setup prove that openSDC is feasible to be deployed in distributed systems of medical devices.
Cite as

David Gregorczyk, Stefan Fischer, Timm Busshaus, Stefan Schlichting, and Stephan Pöhlsen. An Approach to Integrate Distributed Systems of Medical Devices in High Acuity Environments. In 5th Workshop on Medical Cyber-Physical Systems. Open Access Series in Informatics (OASIcs), Volume 36, pp. 15-27, Schloss Dagstuhl – Leibniz-Zentrum für Informatik (2014)

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@InProceedings{gregorczyk_et_al:OASIcs.MCPS.2014.15,
  author =	{Gregorczyk, David and Fischer, Stefan and Busshaus, Timm and Schlichting, Stefan and P\"{o}hlsen, Stephan},
  title =	{{An Approach to Integrate Distributed Systems of Medical Devices in High Acuity Environments}},
  booktitle =	{5th Workshop on Medical Cyber-Physical Systems},
  pages =	{15--27},
  series =	{Open Access Series in Informatics (OASIcs)},
  ISBN =	{978-3-939897-66-8},
  ISSN =	{2190-6807},
  year =	{2014},
  volume =	{36},
  editor =	{Turau, Volker and Kwiatkowska, Marta and Mangharam, Rahul and Weyer, Christoph},
  publisher =	{Schloss Dagstuhl -- Leibniz-Zentrum f{\"u}r Informatik},
  address =	{Dagstuhl, Germany},
  URL =		{https://drops-dev.dagstuhl.de/entities/document/10.4230/OASIcs.MCPS.2014.15},
  URN =		{urn:nbn:de:0030-drops-45191},
  doi =		{10.4230/OASIcs.MCPS.2014.15},
  annote =	{Keywords: Integrated Clinical Environment, Devices Profile for Web Services, ISO/IEEE 11073}
}
Document
DOI: 10.4230/OASIcs.KiVS.2011.26
A Service-Oriented Operating System and an Application Development Infrastructure for Distributed Embedded Systems

Authors: Martin Lipphardt, Nils Glombitza, Jana Neumann, Christian Werner, and Stefan Fischer

Published in: OASIcs, Volume 17, 17th GI/ITG Conference on Communication in Distributed Systems (KiVS 2011)

Abstract
The paradigm of service-orientation promises a significant ease of use in creating and managing distributed software systems. A very important aspect here is that also application domain experts and stakeholders, who are not necessarily skilled in computer programming, get a chance to create, analyze, and adapt distributed applications. However, up to now, service-oriented architectures have been mainly discussed in the context of complex business applications. In this paper we will investigate how to transfer the benefits of a service-oriented architecture into the field of embedded systems, so that this technology gets accessible to a much wider range of users. As an example, we will demonstrate this scheme for sensor network applications. In order to address the problem of limited device resources we will introduce a minimal operating system for such devices. It organizes all pieces of code running on a sensor node in a service-oriented fashion and also features the relocation of code to a different node at runtime. We will demonstrate that it is possible to design a sensor network application from a set of already existing services in a highly modular way by employing already existing technologies and standards.
Cite as

Martin Lipphardt, Nils Glombitza, Jana Neumann, Christian Werner, and Stefan Fischer. A Service-Oriented Operating System and an Application Development Infrastructure for Distributed Embedded Systems. In 17th GI/ITG Conference on Communication in Distributed Systems (KiVS 2011). Open Access Series in Informatics (OASIcs), Volume 17, pp. 26-37, Schloss Dagstuhl – Leibniz-Zentrum für Informatik (2011)

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@InProceedings{lipphardt_et_al:OASIcs.KiVS.2011.26,
  author =	{Lipphardt, Martin and Glombitza, Nils and Neumann, Jana and Werner, Christian and Fischer, Stefan},
  title =	{{A Service-Oriented Operating System and an Application Development Infrastructure for Distributed Embedded Systems}},
  booktitle =	{17th GI/ITG Conference on Communication in Distributed Systems (KiVS 2011)},
  pages =	{26--37},
  series =	{Open Access Series in Informatics (OASIcs)},
  ISBN =	{978-3-939897-27-9},
  ISSN =	{2190-6807},
  year =	{2011},
  volume =	{17},
  editor =	{Luttenberger, Norbert and Peters, Hagen},
  publisher =	{Schloss Dagstuhl -- Leibniz-Zentrum f{\"u}r Informatik},
  address =	{Dagstuhl, Germany},
  URL =		{https://drops-dev.dagstuhl.de/entities/document/10.4230/OASIcs.KiVS.2011.26},
  URN =		{urn:nbn:de:0030-drops-29550},
  doi =		{10.4230/OASIcs.KiVS.2011.26},
  annote =	{Keywords: service-oriented OS, sensor network, distributed embedded systems}
}
Document
DOI: 10.4230/DagSemProc.09371.1
09371 Abstracts Collection – Algorithmic Methods for Distributed Cooperative Systems

Authors: Sándor Fekete, Stefan Fischer, Martin Riedmiller, and Suri Dubhash

Published in: Dagstuhl Seminar Proceedings, Volume 9371, Algorithmic Methods for Distributed Cooperative Systems (2010)

Abstract
From 06.09.09 to 11.09.09 the Dagstuhl Seminar 09371 ``Algorithmic Methods for Distributed Cooperative Systems'' was held in Schloss Dagstuhl~--~Leibniz Center for Informatics. The purpose of this workshop was to bring together researchers from different disciplines whose central interest is in both algorithmic foundations and application scenarios of distributed cooperative systems. During the seminar, several participants presented their current research, and ongoing work and open problems were discussed. Abstracts of the presentations given during the seminar as well as abstracts of seminar results and ideas are put together in this paper. The first section describes the seminar topics and goals in general. Links to extended abstracts or full papers are provided, if available.
Cite as

Sándor Fekete, Stefan Fischer, Martin Riedmiller, and Suri Dubhash. 09371 Abstracts Collection – Algorithmic Methods for Distributed Cooperative Systems. In Algorithmic Methods for Distributed Cooperative Systems. Dagstuhl Seminar Proceedings, Volume 9371, pp. 1-16, Schloss Dagstuhl – Leibniz-Zentrum für Informatik (2010)

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@InProceedings{fekete_et_al:DagSemProc.09371.1,
  author =	{Fekete, S\'{a}ndor and Fischer, Stefan and Riedmiller, Martin and Dubhash, Suri},
  title =	{{09371 Abstracts Collection – Algorithmic Methods for Distributed Cooperative Systems}},
  booktitle =	{Algorithmic Methods for Distributed Cooperative Systems},
  pages =	{1--16},
  series =	{Dagstuhl Seminar Proceedings (DagSemProc)},
  ISSN =	{1862-4405},
  year =	{2010},
  volume =	{9371},
  editor =	{S\'{a}ndor Fekete and Stefan Fischer and Martin Riedmiller and Suri Subhash},
  publisher =	{Schloss Dagstuhl -- Leibniz-Zentrum f{\"u}r Informatik},
  address =	{Dagstuhl, Germany},
  URL =		{https://drops-dev.dagstuhl.de/entities/document/10.4230/DagSemProc.09371.1},
  URN =		{urn:nbn:de:0030-drops-25224},
  doi =		{10.4230/DagSemProc.09371.1},
  annote =	{Keywords: Algorithms, cooperative systems, sensor networks, multi-robot systems, applications}
}
Document
DOI: 10.4230/DagSemProc.06481.2
Geometric Distance Estimation for Sensor Networks and Unit Disk Graphs

Authors: Sándor Fekete, Alexander Kröller, Carsten Buschmann, and Stefan Fischer

Published in: Dagstuhl Seminar Proceedings, Volume 6481, Geometric Networks and Metric Space Embeddings (2007)

Abstract
We present an approach to estimating distances in sensor networks. It works by counting common neighbors, high values indicating closeness. Such distance estimates are needed in many self-localization algorithms. Other than many other approaches, ours does not rely on special equipment in the devices.
Cite as

Sándor Fekete, Alexander Kröller, Carsten Buschmann, and Stefan Fischer. Geometric Distance Estimation for Sensor Networks and Unit Disk Graphs. In Geometric Networks and Metric Space Embeddings. Dagstuhl Seminar Proceedings, Volume 6481, pp. 1-2, Schloss Dagstuhl – Leibniz-Zentrum für Informatik (2007)

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@InProceedings{fekete_et_al:DagSemProc.06481.2,
  author =	{Fekete, S\'{a}ndor and Kr\"{o}ller, Alexander and Buschmann, Carsten and Fischer, Stefan},
  title =	{{Geometric Distance Estimation for Sensor Networks and Unit Disk Graphs}},
  booktitle =	{Geometric Networks and Metric Space Embeddings},
  pages =	{1--2},
  series =	{Dagstuhl Seminar Proceedings (DagSemProc)},
  ISSN =	{1862-4405},
  year =	{2007},
  volume =	{6481},
  editor =	{Joachim Gudmundsson and Rolf Klein and Giri Narasimhan and Michiel Smid and Alexander Wolff},
  publisher =	{Schloss Dagstuhl -- Leibniz-Zentrum f{\"u}r Informatik},
  address =	{Dagstuhl, Germany},
  URL =		{https://drops-dev.dagstuhl.de/entities/document/10.4230/DagSemProc.06481.2},
  URN =		{urn:nbn:de:0030-drops-10282},
  doi =		{10.4230/DagSemProc.06481.2},
  annote =	{Keywords: Sensor networks, distance estimation, unit disk graphs.}
}
Document
DOI: 10.4230/DagSemProc.05361.6
Deterministic boundary recongnition and topology extraction for large sensor networks

Authors: Sándor Fekete, Alexander Kröller, Dennis Pfisterer, and Stefan Fischer

Published in: Dagstuhl Seminar Proceedings, Volume 5361, Algorithmic Aspects of Large and Complex Networks (2006)

Abstract
We present a new framework for the crucial challenge of self-organization of a large sensor network. The basic scenario can be described as follows: Given a large swarm of immobile sensor nodes that have been scattered in a polygonal region, such as a street network. Nodes have no knowledge of size or shape of the environment or the position of other nodes. Moreover, they have no way of measuring coordinates, geometric distances to other nodes, or their direction. Their only way of interacting with other nodes is to send or to receive messages from any node that is within communication range. The objective is to develop algorithms and protocols that allow self-organization of the swarm into large-scale structures that reflect the structure of the street network, setting the stage for global routing, tracking and guiding algorithms. Our algorithms work in two stages: boundary recognition and topology extraction. All steps are strictly deterministic, yield fast distributed algorithms, and make no assumption on the distribution of nodes in the environment, other than sufficient density.
Cite as

Sándor Fekete, Alexander Kröller, Dennis Pfisterer, and Stefan Fischer. Deterministic boundary recongnition and topology extraction for large sensor networks. In Algorithmic Aspects of Large and Complex Networks. Dagstuhl Seminar Proceedings, Volume 5361, Schloss Dagstuhl – Leibniz-Zentrum für Informatik (2006)

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@InProceedings{fekete_et_al:DagSemProc.05361.6,
  author =	{Fekete, S\'{a}ndor and Kr\"{o}ller, Alexander and Pfisterer, Dennis and Fischer, Stefan},
  title =	{{Deterministic boundary recongnition and topology extraction for large sensor networks}},
  booktitle =	{Algorithmic Aspects of Large and Complex Networks},
  series =	{Dagstuhl Seminar Proceedings (DagSemProc)},
  ISSN =	{1862-4405},
  year =	{2006},
  volume =	{5361},
  editor =	{Stefano Leonardi and Friedhelm Meyer auf der Heide and Dorothea Wagner},
  publisher =	{Schloss Dagstuhl -- Leibniz-Zentrum f{\"u}r Informatik},
  address =	{Dagstuhl, Germany},
  URL =		{https://drops-dev.dagstuhl.de/entities/document/10.4230/DagSemProc.05361.6},
  URN =		{urn:nbn:de:0030-drops-5632},
  doi =		{10.4230/DagSemProc.05361.6},
  annote =	{Keywords: Distributed algorithms, sensor networks, boundary recognition, topology extraction}
}
Document
DOI: 10.4230/DagSemRep.358
Quality of Service in Networks and Distributed Systems (Dagstuhl Seminar 02441)

Authors: Andrew T. Campbell, Stefan Fischer, Klara Nahrstedt, and Lars Wolf

Published in: Dagstuhl Seminar Reports. Dagstuhl Seminar Reports, Volume 1 (2021)

Abstract
Cite as

Andrew T. Campbell, Stefan Fischer, Klara Nahrstedt, and Lars Wolf. Quality of Service in Networks and Distributed Systems (Dagstuhl Seminar 02441). Dagstuhl Seminar Report 358, pp. 1-10, Schloss Dagstuhl – Leibniz-Zentrum für Informatik (2003)

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@TechReport{campbell_et_al:DagSemRep.358,
  author =	{Campbell, Andrew T. and Fischer, Stefan and Nahrstedt, Klara and Wolf, Lars},
  title =	{{Quality of Service in Networks and Distributed Systems (Dagstuhl Seminar 02441)}},
  pages =	{1--10},
  ISSN =	{1619-0203},
  year =	{2003},
  type = 	{Dagstuhl Seminar Report},
  number =	{358},
  institution =	{Schloss Dagstuhl -- Leibniz-Zentrum f{\"u}r Informatik},
  publisher =	{Schloss Dagstuhl -- Leibniz-Zentrum f{\"u}r Informatik},
  address =	{Dagstuhl, Germany},
  URL =		{https://drops-dev.dagstuhl.de/entities/document/10.4230/DagSemRep.358},
  URN =		{urn:nbn:de:0030-drops-152386},
  doi =		{10.4230/DagSemRep.358},
}
Document
DOI: 10.4230/DagSemRep.274
Quality of Service in Networks and Distributed Systems (Dagstuhl Seminar 00191)

Authors: Andrew Campbell, Domenico Ferrari, Stefan Fischer, and Lars Wolf

Published in: Dagstuhl Seminar Reports. Dagstuhl Seminar Reports, Volume 1 (2021)

Abstract
Cite as

Andrew Campbell, Domenico Ferrari, Stefan Fischer, and Lars Wolf. Quality of Service in Networks and Distributed Systems (Dagstuhl Seminar 00191). Dagstuhl Seminar Report 274, pp. 1-19, Schloss Dagstuhl – Leibniz-Zentrum für Informatik (2000)

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@TechReport{campbell_et_al:DagSemRep.274,
  author =	{Campbell, Andrew and Ferrari, Domenico and Fischer, Stefan and Wolf, Lars},
  title =	{{Quality of Service in Networks and Distributed Systems (Dagstuhl Seminar 00191)}},
  pages =	{1--19},
  ISSN =	{1619-0203},
  year =	{2000},
  type = 	{Dagstuhl Seminar Report},
  number =	{274},
  institution =	{Schloss Dagstuhl -- Leibniz-Zentrum f{\"u}r Informatik},
  publisher =	{Schloss Dagstuhl -- Leibniz-Zentrum f{\"u}r Informatik},
  address =	{Dagstuhl, Germany},
  URL =		{https://drops-dev.dagstuhl.de/entities/document/10.4230/DagSemRep.274},
  URN =		{urn:nbn:de:0030-drops-151597},
  doi =		{10.4230/DagSemRep.274},
}
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