Prof. Dr. Edgar Nett

Lehrstuhlleitung

Otto-von-Guericke-Universität Magdeburg Institut für Verteilte Systeme Universitätsplatz 2 D-39106 Magdeburg Gebäude 29, Raum 324 Telefon: (+49) 0391-67-58346 Fax: (+49) 0391-67-11161 nett[at]ivs.cs.ovgu.de

| 2015 | 2014 | 2013 | 2012 | 2011 | 2010 | 2009 | 2008 | 2007 | 2006 | 2005 | 2004 | 2003 | 2002 | 2001 | 2000 | 1999 |

2015

Timo Lindhorst, Edgar Nett
Dependable communication for mobile robots in industrialwireless mesh networks
In: Cooperative Robots and Sensor Networks 2015. - Cham [u.a.] : Springer International Publ., S. 207-227 - (Studies in Computational Intelligence; 604) ; ISBN: 978-3-319-18299-5 DOI: 10.1007/978-3-319-18299-5_10
http://www.springerprofessional.de/010---dependable-communication-for-mobile-robots-in-industrial-wireless-mesh-networks/5739414.html
Mobile robots inevitably require a wireless network for communication. Wireless mesh networks (WMNs) allow for increased flexibility and an easy integration of mobile robots. Hence, they are well suited for present and future cyber-physical industrial applications. The high dependability requirements of that application domain, however, issue particular challenges to the communication network, especially regarding the mobility of stations. In this chapter, we present various approaches and mechanisms to provide dependable communication for mobile robots in industrial WMNs. These comprise different cross-layer techniques to allow for seamless mobility and an admission control that explicitly considers station mobility to avoid network overload. Evaluation results are gathered by both simulation and real-world experiments while case-studies supplement the results. The outcome is a network architecture that allows for seamless communication even for mission-critical applications on mobile robots.

2014

Timo Lindhorst, Burkhard Weseloh, Edgar Nett
Dependable Admission Control for Mission-Critical Mobile Applications in Wireless Mesh Networks
Proceedings of the 33rd IEEE Symposium on Reliable Distributed Systems
Wireless Mesh Networks (WMNs) provide a promising foundation for a flexible
and reliable communication infrastructure in industrial environments. Meeting
the QoS demands of industrial applications, though, requires the deployment of
an admission control to avoid network overload. The presence of mobile
stations, however, causes dynamics within the network that severely impacts
the available capacity. For instance, if a communication route switches from
one to two hops, twice the resources are consumed due to self-interference. To
neither jeopardize QoS guarantees nor having to cancel present flows, our
dependable admission control scheme foresees and considers those dynamics
during resource reservation to handle station mobility.
We describe a highly dependable approach and further propose an estimation
method that improves network efficiency. The evaluation results show that our
novel approach allows for a dependable admission control even in presence of
mobile stations and thus enables the network to provide a new class of
guarantee for mission-critical mobile applications.
@InProceedings{srds14,
  Title                    = {Dependable Admission Control for Mission-Critical Mobile Applications in Wireless Mesh Networks},
  Author                   = {Timo Lindhorst and Burkhard Weseloh and Edgar Nett},
  Booktitle                = {Proceedings of the 33rd IEEE Symposium on Reliable Distributed Systems},
  Year                     = {2014},
  note = {to appear},
}
Jana Fruth, Edgar Nett
Uniform Approach of Risk Communication in Distributed IT Environments Combining Safety and Security Aspects
Kongressband, Computer Safety, Reliability, and Security - SAFECOMP 2014 Workshop-Proceedings, s. 298-300, September 8-12, 2014, Florence, Italy
The trend to compose real time systems with standard IT known from conventional office domains results in heterogeneous technical environments. Examples are modern industrial process automation networks. It is a challenging task, because of potential impacts of security incidents to the system safety. For example, robot control units could be manipulated by malicious codes. The term “risk communication” is introduced, to describe alarm communication in human-machine
interaction scenarios. User adapted risk communication between humans and industrial automation systems, including home robotics, can prevent hazards and/or threats to the entire system safety and security. Current safety and security risk communication standards are compared to examine the adequacy for our uniform approach. This paper focuses on alarm
system standards in the industrial process automation domain and intrusion detection systems from the conventional desktop IT domain. A uniform model based approach for risk communication in distributed IT environments is introduced.
Timo Lindhorst, Burkhard Weseloh, Edgar Nett
Maintaining Dependable Communication Service for Mobile Stations in Wireless Mesh Networks by Tracking Capacity Demands
Proceedings of the 28th IEEE International Parallel & Distributed Processing Symposium
Wireless Mesh Networks (WMNs) provide a promising foundation for a flexible
and reliable communication infrastructure in industrial environments. Meeting
the QoS demands of industrial applications, though, requires the deployment of
an admission control to avoid network overload. The presence of mobile
stations, however, causes dynamics within the network that severely impacts
the available capacity. For instance, if a communication route switches from
one to two hops, twice the resources are consumed due to self-interference. To
neither jeopardize QoS guarantees nor having to cancel present flows, our
dependable admission control scheme foresees and considers those dynamics
during resource reservation to handle station mobility.
We describe a highly dependable approach and further propose an estimation
method that improves network efficiency. The evaluation results show that our
novel approach allows for a dependable admission control even in presence of
mobile stations.
@InProceedings{Lindhorst14dpdns,
  Title                    = {Maintaining Dependable Communication Service for Mobile Stations in Wireless Mesh Networks by Tracking Capacity Demands},
  Author                   = {Timo Lindhorst and Burkhard Weseloh and Edgar Nett},
  Booktitle                = {Proceedings of the 28th IEEE International Parallel \& Distributed Processing Symposium},
  Year                     = {2014},
  Publisher                = {IEEE}
}

2013

Henning Trsek, Tim Tack, Omid Givehchi, Juergen Jasperneite, and Edgar Nett
Towards an Isochronous Wireless Communication System for Industrial Automation
18th IEEE International Conference on Emerging Technologies and Factory Automation, September 10-13, 2013 Cagliary, Italy
Deploying wireless technologies in industrial automation becomes more and more common. It is an enabler for many innovative applications where moving system components are involved, e. g. rotating parts of machines. However, many of such applications impose high temporal requirements on the wireless system, for instance isochronous data communication. Today, these requirements can not be met by existing solutions, such as IEEE 802.11 Wireless Local Area Networks (WLANs). In this paper, an isochronous wireless communication system is investigated. It mainly consists of a deterministic medium access control, based on IEEE 802.11, which is extended with additional features for isochronous communication. The presented preliminary analysis shows the system’s feasibility for the targeted industrial applications and presents promising performance improvements in comparison with standard mechanisms.
Timo Lindhorst, Georg Lukas, Edgar Nett
Wireless Mesh Network Infrastructure for Industrial Applications - A Case Study of Tele-operated Mobile Robots
18th IEEE International Conference on Emerging Technologies and Factory Automation, September 10-13, 2013 Cagliary, Italy
The deployment of wireless communication networks in industrial facilities allows for increased flexibility and seamless integration of mobile participants. Time-critical control applications are generally realized with dedicated wireless sensor networks while common WLAN infrastructure networks allow high-throughput best-effort communication. To provide high-capacity communication as well as real-time service quality, we developed and implemented a Wireless Mesh Network (WMN) infrastructure for industrial applications. An example application that requires these properties is the video-based tele-operation of a mobile robot, which we present as case study in this work. It shows the applicability of our infrastructure as well as the necessity of its comprised components.
@INPROCEEDINGS{Lindhorst13,
  author = {Timo Lindhorst, Georg Lukas and Edgar Nett},
  title = {Wireless Mesh Network Infrastructure for Industrial Applications
        - A Case Study of Tele-operated Mobile Robots},
  booktitle = {18th IEEE International Conference on Emerging Technologies \& Factory
        Automation (ETFA)},
  year = {2013},
  file = {:Lindhorst13.pdf:PDF},
  owner = {timo},
  timestamp = {2013.09.18}
}
Frank Engelhardt, Timo Lindhorst, Edgar Nett
Tolerating Packet Losses in Wireless Mesh Networks
2013 IEEE 27th International Symposium on Parallel & Distributed Processing Workshops and PhD Forum, 20-24 May 2013, Boston (MA) USA
Wireless Mesh Networks (WMNs) provide a promising foundation for a flexible and reliable communication infrastructure in industrial environments. Meeting the QoS demands of real-time applications, though, requires the deployment of various advanced mechanisms. Compared to wired networks, applications face higher packet loss rates in wireless networks due to the inherent unreliability of wireless communication. Furthermore, if mobile stations are involved, links that fail due to node movement frequently cause packet losses. In this paper, we present an approach to tolerate those specific losses by locally recovering lost packets and transiently re-routing them over an alternative path. The evaluation in real-world experiments shows that we can completely prevent packet loss without significantly increasing the end-to-end latency. This allows the deployment of WMNs for real-time applications without explicitly considering the increased error-proneness of wireless communication and station mobility.
Svilen Ivanov, Edgar Nett
Localization-Based Radio Model Calibration for Fault-Tolerant Wireless Mesh Networks
Industrial Informatics, IEEE Transactions on , vol.9, no.1, pp.246-253, Feb. 2013

2012

Svilen Ivanov, Edgar Nett
Achieving Fault-Tolerant Network Topology in Wireless Mesh Networks (Buchkapitel)
Wireless Mesh Networks - Efficient Link Scheduling, Channel Assignment and Network Planning Strategies, ISBN: 978-953-51-0672-2 ; DOI: 10.5772/50173
http://www.intechopen.com/articles/show/title/achieving-fault-tolerant-network-topology-in-wireless-mesh-networks
B. Malinowsky, J. Grønbæk, H.P. Schwefel, A. Ceccarelli, A. Bondavalli, E. Nett
Timed Broadcast via Off-the-Shelf WLAN Distributed Coordination Function for Safety-Critical Systems
In Proceedings of 9th European Dependable Computing Conference (EDCC 2012), Seite 144-155, Sibiu, Romania, 08-11.Mai 2012
http://ieeexplore.ieee.org/xpls/abs_all.jsp?arnumber=6214769
Svilen Ivanov, Edgar Nett
Using Localization for Fault-tolerant Radio Coverage in Wireless Mesh Networks
In Proceedings of 26th IEEE International Parallel and Distributed Processing Symposium (IPDPS 2012), 17th IEEE Workshop on Dependable Parallel, Distributed and Network-Centric Systems (DPDNS 2012), Shanghai, China, 21-25. Mai 2012

2011

Timo Lindhorst, Georg Lukas and Edgar Nett
Modeling Medium Utilization for Admission Control in Industrial Wireless Mesh Networks
In Proceedings of the 30th IEEE International Symposium on Reliable Distributed Systems, October 4-7, 2011. Madrid, Spain
@inproceedings{Lukas2011srds,
  author = {Georg Lukas and Timo Lindhorst and Edgar Nett},
  title = {Modeling Medium Utilization for Admission Control in Industrial Wireless Mesh Networks},
  booktitle = {IEEE International Symposium on Reliable Distributed Systems},
  publisher = {IEEE},
  year = {2011}
}

2010

Timo Lindhorst, Georg Lukas, Edgar Nett, and Michael Mock
Data-mining-based Link Failure Detection for Wireless Mesh Networks
In Proceedings of the 29th IEEE International Symposium on Reliable Distributed Systems, 31 October - 4 November, 2010, New Delhi, India
Mobile robot applications operating in wireless environments require fast detection of link failures in order to enable fast repair. In previous work, we have shown that cross-layer failure detection can reduce failure detection latency significantly. In particular, we monitor the behavior of the WLAN MAC layer to predict failures on the link layer. In this paper, we investigate data mining techniques to determine which parameters, i.e., the events, or combination and timing of events, occurring on the MAC layer most probably lead to link failures. Our results show, that the parameters revealed with the data mining approach produce similar or even more accurate failure predictions than achieved so far.
@inproceedings{Lindhorst2010-srds,
  author = {Timo Lindhorst and Georg Lukas and Edgar Nett and Michael Mock},
  title = {Data-mining-based Link Failure Detection for Wireless Mesh Networks},
  booktitle = {IEEE International Symposium on Reliable Distributed Systems},
  publisher = {IEEE},
  year = {2010},
  month = {November}
}
Svilen Ivanov and Edgar Nett
Fault-tolerant Base Station Planning ofWireless Mesh Networks in Dynamic Industrial Environments
In Proceedings of the IEEE International Conference 2010 - Emerging Technologies and Factory Automation, 13 - 16 Semptember, 2010, Bilbao, Spain
Ansgar Bredenfeld, Manuela Kanneberg, Timo Lindhorst, and Edgar Nett
Im Praxistest
In A&D Vorsprung Automation, November 2010, München, pp. 120-122
Die Universität Magdeburg bietet Informatikstudenten die Möglichkeit, in Software-Projekten die Theorie in die Praxis umzusetzen. Das Projekt Teamrobotik vermittelte so anhand von mobilen VolksBot-RT3-Robotern unter anderem Erfahrungen im Bereich Bildverarbeitung, Navigation und Hinderniserkennung.
@article{praxistestAD,
  author = {Ansgar Bredenfeld and Timo Lindhorst and Manuela Kanneberg and Edgar Nett},
  title = {Im Praxistest},
  journal = {A\&D Vorsprung Automation},
  year = {2010},
  volume = {November},
  pages = {120-122}
}
Timo Lindhorst, Georg Lukas, and Edgar Nett
Modeling Fast Link Failure Detection for Dependable Wireless Mesh Networks
In Proceedings of the 9th IEEE International Symposium on Network Computing and Applications, 15 - 17 July, 2010, Cambridge, MA, USA
Wireless Mesh Networks (WMN) provide a flexible and inexpensive way to expand network applications to mobile entities. However, high communication reliability demands can not be met by regular WMNs due to mobility and inherent properties of wireless communication. Failing links are common events which impose a major challenge for providing a dependable communication service. By the use of suitable cross-layer models, we provide a timely detection of failed links without compromising the network stability. It is shown that the packet loss caused by a link failure can be reduced from a time-dependent value to at most four consecutive packets. For a typical control application this means an improvement by a factor of 100. In addition to an empirical evaluation we demonstrate the applicability of the mechanism by utilizing it in a real-world WMN to allow the tele-operation of a mobile robot.
@inproceedings{Lindhorst2010,
  author = {Timo Lindhorst and Georg Lukas and Edgar Nett},
  title = {Modeling Fast Link Failure Detection for Dependable Wireless Mesh Networks},
  booktitle = {IEEE International Symposium on Network Computing and Applications},
  publisher = {IEEE},
  year = {2010},
  month = {July},
  doi = {http://doi.ieeecomputersociety.org/10.1109/NCA.2010.13}
}
Timo Lindhorst, Manuela Kanneberg, Edgar Nett and Ansgar Bredenfeld
VolksBot mit CompactRIO und LabVIEW - Erfahrungen aus der Lehrveranstaltung "Teamrobotik"
15. Technologie- und Anwenderkongress VIP 2010 - „Virtuelle Instrumente in der Praxis“ ; 27.-28. Oktober 2010, Fürstenfeld bei München, Germany
@inproceedings{VIP2010,
  author = {Ansgar Bredenfeld and Timo Lindhorst and Manuela Kanneberg and Edgar Nett},
  title = {VolksBot mit CompactRIO und LabVIEW - Erfahrungen aus der Lehrveranstaltungsreihe "Teamrobotik"},
  booktitle = {Virtuelle Instrumente in der Praxis 2010},
  publisher = {VDE Verlag},
  year = {2010},
  month = {October}
}

2009

Georg Lukas, André Herms, Svilen Ivanov, E. Nett
Dependable Wireless Mesh Networks: An integrated approach
International Journal of parallel, Emergent and Distributed Systems, April 2, 2009
Volume 24, Issue 2 April 2009, pages 151-169
Wireless Mesh Networks (WMNs) are gaining popularity in many application areas because of their low cost and high flexibility. Technically, a WMN forms a distributed network-centric system which aims to provide communication services to the application layer, but has no built-in dependability provisions. To make the network dependable, many problems have to be solved on different layers. With this paper, we describe our ongoing work to provide an integrated solution to increase the dependability of WMNs. Our approach combines network coverage planning on the physical layer, bandwidth management on the link layer and live network monitoring to improve the reliability, availability and maintainability of a WMN. We provide fine-grained means to improve the predictability of the network components, thus making the WMN more dependable. In this paper, we present first results of our work, and describe how they are interleaved.
@article{cite:Lukas2009,
  author = {Georg Lukas and Andr{\'e} Herms and Svilen Ivanov and Edgar Nett},
  title = {{Dependable Wireless Mesh Networks: An Integrated Approach}},
  journal = {International Journal of Parallel, Emergent and Distributed Systems},
  year = {2009},
  month = {April},
  volume = {24},
  number = {2},
  pages = {1--21},
  url = {http://ivs.cs.uni-magdeburg.de/EuK/forschung/publikationen/pdf/2009/ijpeds\_lhin2009.pdf},
  doi = {10.1080/17445760802544086}
}

2008

Georg Lukas, André Herms, Svilen Ivanov, E. Nett
An Integrated Approach for Reliability and Dependability of Wireless Mesh Networks
13th IEEE Workshop on Dependable Parallel, Distributed and Network-Centric Systems DPDNS '08, 2008
Wireless Mesh Networks (WMNs) are gaining popularity in many application areas because of their low cost and high flexibility. Technically, a WMN forms a distributed network-centric system which aims to provide communication services to the application layer, but has no built-in dependability provisions. To make the network dependable, many problems have to be solved on different layers. With this paper, we describe our ongoing work to provide an integrated solution to increase the dependability of WMNs. Our approach combines network coverage planning on the physical layer, bandwidth management on the link layer and live network monitoring to improve the reliability, availability and maintainability of a WMN. We provide fine-grained means to improve the predictability of the network components, thus making the WMN more dependable. In this paper, we present first results of our work, and describe how they are interleaved.
@inproceedings{cite:LHIN2008,
  author = {Georg Lukas and Andr{\'e} Herms and Svilen Ivanov and Edgar Nett},
  title = {An Integrated Approach for Reliability and Dependability of Wireless Mesh Networks},
  booktitle = {13th IEEE Workshop on Dependable Parallel, Distributed and Network-Centric Systems DPDNS '08},
  year = {2008},
  url = {http://ivs.cs.uni-magdeburg.de/EuK/forschung/publikationen/pdf/2008/dependable_wmn_camera_ready.pdf}
}
Svilen Ivanov, E. Nett, Stefan Schemmer
Automatic WLAN Localization for Industrial Automation
in '7th IEEE International Workshop on Factory Communication Systems (WFCS 2008), May 20-23, 2008, Dresden, Germany'.
[PDF]
Georg Lukas, E. Nett, Svilen Ivanov
Distributed Event Synconization for Diagnosing Wireless Mesh Networks
Int. Workshop on Dependable Network Computing and Mobile Systems (DNCMS 08); Naples, Italy, October 5th, 2008
in conjunction with the 27th IEEE Int. SRDS 2008
@inproceedings{cite:Lukas2008,
  author = {Georg Lukas AND Edgar Nett AND Svilen Ivanov},
  title = {{Distributed Event Synchronization for Diagnosing Wireless Mesh Networks}},
  booktitle = {{Proceedings of the International Workshop on Dependable Network Computing and Mobile Systems, DNCMS'08}},
  year = {2008},
  url = {http://ivs.cs.uni-magdeburg.de/EuK/forschung/publikationen/pdf/2008/dncms08-enett.pdf}
}
Svilen Ivanov, E. Nett
Fault-Tolerant Coverage Planning in Wireless Networks
27th IEEE Int. Symposium on Reliable Distributed Sytems (SRDS), Naples, Italy, October 6-8, 2008
ISBN: 978-0-7695-3410-7 Seiten 175-184
[PDF]
Svilen Ivanov, E. Nett, André Herms
Feedback-controlled WLAN: Achieving Channel-Availability in Mesh Networks
in '7th IEEE International Symposium on Network Computing and Applications (IEEE NCA08), 10 - 12 July, Cambridge, MA USA'.
[PDF]
E. Nett, André Herms, Stefan Schemmer
Real-Time Mesh Networks for Industrial Applications
Proceedings of 17th International Federation of Automatic Control World Congress (IFAC'08), Seoul, Korea, July 6-11, 2008

2007

Svilen Ivanov, E. Nett, Stefan Schemmer
Planning Available WLAN in Dynamic Production Environments
FeT'2007, 7th IFAC International Conference on Fieldbuses and Networks in Industrial and Embedded Systems, Toulouse, France, November 7 - 9, 2007
[PDF]
E. Nett, C. Tres, L. Buss Becker
Real-Time Tasks Scheduling with Value Control to Predict Timing Faults during Overload
10th IEEE International Symposium on Object and component-oriented Real-time distributed Computing (ISORC 2007), May 7-9 2007, Santorini, Greece

2006

Manuela Kanneberg, Edgar Nett
Roboterwettbewerbe als Benchmark für mechatronische Systeme
4. Internationale Maschinenbaukonferenz COMEC 2006, 7.-9.11.2006, Santa Clara, Cuba

2005

Schemmer, S. and E. Nett
Achieving Reliable and Timely Task Execution in Mobile Embedded Applications
Int. Journal of Computer System Science and Engineering, 2005
[PDF]
C. Tres, E. Nett, L. Buss Becker
Controlling Real-Rime Tasks Schedule Using the Value Parameter
Proc. 8th Brazilian Workshop on Real-Time Systems (WTR 2006), Curituba, Brasilien, Juni 2006
E. Nett, M. Kanneberg
Kooperative Roboter im studentischen Softwarepraktikum
35. Jahrestagung der Gesellschaft für Informatik e.V.(GI); 19.-22.September in Bonn, Germany; Informatik 2005 - Informatik LIVE Band 1 S. 153 ISBN: 3-88579-396-2
Kooperative Roboter im studentischen Softwarepraktikum.pdf © by Gesellschaft für Informatik e.V. (GI), Bonn 2005
M. Kanneberg, E. Nett
Roboter in der Ausbildung, Proceedings of microCAD 2005
10.-11. März 2005, Miskolc, Hungary.
Becker, L.B., E. Nett, S. Schemmer, and M. Gergeleit
Robust Scheduling in Team-Robotics
Journal of Systems and Software, 77(1), p. 3-16, 2005 (statt 2003)
E. Nett, Miroslaw Malek, Neeraj Suri (Herausgeber)
Service Availability
Second International Service Availibility Symposium, ISAS 2005, Berlin, Germany, April 2005 Revised Selected Papers
ISBN : 3-540-29103-2, Springer Verlag, 211 Seiten
[URL]
E. Nett
WLAN in Automation - More Than an Academic Excercise?
Dependable Computing - Second Latin-American Symposium, LADC 2005, Salvador, Brazil, October 2005 Proceedings, (Seite 4), Springer Verlag
[URL]

2004

Nett, E. and Schemmer, S.
A Middleware Architecture to Support Cooperating Mobile Embedded Systems in Proceedings of Workshop on Dependable Embedded Syste
in conjuction with 23rd International Symposium on Reliable Distibuted Systems.
Oct. 17, 2004, Florianopolis, Brazil.
Nett, E. and Schemmer, S.
An Architecture to Support Cooperating Mobile Embedded Systems
In Proc. 2004 ACM Computing Frontiers Conference, April 14. - 17. 2004, Ischia, Italy.
M. Kanneberg, E. Nett
Roboter in der Ausbildung
III. Internationale Maschinenbaukonferenz COMEC 2004,
9.-11.11.2004, Santa Clara, Cuba
Becker, L.B., E. Nett, S. Schemmer, and M. Gergeleit
Robust Scheduling in Team-Robotics
Journal of Systems and Software
[PDF]

2003

Schemmer, S. and E. Nett
Achieving Reliable and Timely Task Execution in Mobile Embedded Applications
In Proc. 9th IEEE International Workshop on Object-oriented Real-time Dependable Systems (WORDS 2003F),
Capri Island,Italy. October 1-3, 2003
[PDF]
Schemmer, S. and E. Nett
Managing Dynamic Groups of Mobile Systems
In Proc. 6th International Symposium on Autonomous Decentralized Systems, Pisa, Italy. April 9-11, 2003
[PDF]
Nett, E. and S. Schemmer
Realizing Virtual Sensors by Distributed Multi-Level Sensor Fusion
In Proc. 2003 International Workshop on Multi-Robot Systems, Washington, D.C, Kluwever Academic Publishers. March 17-19, 2003
Nett, E. and S. Schemmer
Reliable Real-Time Communication in Cooperative Mobile Applications
IEEE Transactions on Computers 52(2):166-180. Feb. 2003
[PDF]
M. Gergeleit, L. Buss Becker, E. Nett
Robust Scheduling in Team-Robotics
11th International Workshop on Parallel and Distributed Real-Time Systems (WPDRTS 2003), in conjunction with IPDPS 2003, April 22-24, 2003, Nizza, Frankreich
Becker, L. B., M.Gergeleit, S. Schemmer, and E. Nett
Using a Flexible Real-Time Scheduling Strategy in a Distributed Embedded Application
In Proc. 9th IEEE International Conference on Emerging Technologies and Factory Automation (ETFA), Lisbon, Portugal. September 16-19, 2003
[PDF]

2002

E. Nett, M. Mock
A Recovery Model for Cooperative Computations
June 2002, Kapitel im Buch: Concurrency in Dependable Computing von Paul Ezhilchelvan, Alexander Romanovsky; Kluwer Academic Publishers, Bosten Hardbound, ISBN 1-4020-7043-8, S. 328 pp.
E. Nett, M. Gergeleit, M. Mock
Drahtlose Netze für Buisiness-Anwendungen
Buchtitel im Jahrbuch 2002 Datenkommunikation, H. Roessel, Hrsg., Addison-Welsey, 2001, S. 237-278
S. Schemmer, T. Ihme, E. Nett
Kollisionsvermeidung durch Planung in räumlich definierten, dynamischen Robotergruppen
Robotik 2002 - Leistungsstand-Anwendungen-Visionen-Trends, Tagung Ludwigsburg, 19. bis 20. Juni 2002. In Reihe: VDI-Berichte, Bd. 1679, VDI/VDE-Gesellschaft Mess- und Automatisierungstechnik. Düsseldorf: VDI-Verl., 2002, S. 153-158. ISBN 3-18-091679-6
[PDF]
E. Nett
Rechnerunterstützte Kooperation von autonomen mobilen Systemen
Magdeburger Wissenschaftsjournal, Otto-von-Guericke-Universität Magdeburg, Ausgabe 1/02, ISSN 0949-5304
Nett, E., S. Schemmer, and M. Gergeleit
Verlustraten im WLAN - Messungen beim RoboCup
Proc. Informatik 2002, Dortmund, Germany, 30.09.-03.10.2002
[PDF]

2001

L. B. Becker, M. Gergeleit, E. Nett, C. E. Pereira
An Integrated Environment for the Complete Development Cycle of an Object-Oriented Distributed Real-Time System
International Journal of Computer Systems Science & Engineering, Vol 16 No 2 March 2001, Special issue: ISORC '99, ISSN 0267 6192
[URL]
L. B. Becker, M. Gergeleit, E. Nett
Approach for Implementing Object-Oriented Real-Time Models on Top of Embedded Targets
OMER-2 - Workshop on Object-oriented Modeling of Embedded Real-time Systems, Herrsching am Ammersee, Germany, May 10-12, 2001
Michael Mock, Stefan Schemmer, Edgar Nett
Bewertung eines Echtzeit-Protokolls zur Gruppenkommunikation auf WavelLAN und Windows NT
GMA-Kongress 2001 "Automatisierungstechnik im Spannungsfeld neuer Technologien" der VDI/VDE-Gesellschaft Mess- und Automatierungstechnik, Baden-Baden, 22./23.Mai 2001
Edgar Nett, Michael Mock, Martin Gergeleit
Das drahtlose Ethernet; Der IEEE 802.11-Standard: Grundlagen und Anwendung
Buch, erschienen bei Addison-Wesley, Februar 2001, ISBN 3-8273-1741-X, 272 Seiten
[URL]
M. Mock, E. Nett, S. Schemmer
Drahtloses LAN im Feld: Lösungsansätze auf der Basis von IEEE 802.11
Automatisierungstechnische Praxis (atp), Ausgabe 9/2001, Oldenbourg Verlag
E. Nett, M. Gergeleit, and M. Mock
Enhancing O-O Middleware to become Time-Aware
Special Issue on Real-Time Middleware in Real-Time Systems, 20 (2): 211-228, March2001, Kluwer Academic Publishers. ISSN- 0922-6443
[URL]
Edgar Nett, Martin Gergeleit, Michael Mock
Mechanisms for a Reliable Cooperation of Vehicles
in Proceedings of the Sixth International Symposium on High Assurance Systems Engineering (HASE 2001), Boca Ration, Florida, Oct. 2001
M. Gergeleit, E. Nett, S. Trikaliotis
Messung der gegenseitigen Störungen von Funk-Netzwerken
Die Jahrestagung der GI in Wien: Informatik 2001, 25. bis 28. September 2001
Stefan Schemmer, Edgar Nett, Michael Mock
Reliable Real-Time Cooperation of Mobile Autonomous Systems
In Proceedings 20th Symposium on Realiable Distributed Systems (SRDS 2001), October 28-31, 2001, S. 238 - 246, ISBN 0-7695-1366-2
[PDF]

2000

M. Mock, R. Frings, E. Nett, S. Trikaliotis
Clock Synchronization for Wireless Local Area Networks
12th Euromicro Conference on Real-Time Systems, Stockholm, June 2000.
Mock, M., Frings, R., Nett, E., Trikaliotis, S.
Continuous Clock Synchronization in Wireless Real-Time Applications
19th IEEE Symposium on Reliable Distributed Systems (SRDS), Nürnberg, Germany, October 16-18, 2000.
[PDF]
Mock, M., Schemmer, S., and Nett, E.
Evaluating a Wireless Real-Time Communication Protocol on Windows NT and WaveLAN
In Proceedings of WFCS'2000 3rd IEEE International Workshop on Factory Communication Systems, Porto, Portugal, September, 2000
[PDF]
M. Mock and E. Nett
Integrating Hard and Soft Real-Time Communication in Autonomous Robot System
Special Issue on Autonomous Decentralized Systems of the IEICE Transactions on Communications, Vol. E83-B, No. 5, pp. 1067-1074, 2000.
M. Mock, M. Gergeleit, E. Nett
Monitoring Distributed Real-Time Activities in DCOM
3nd IEEE International Symposium on Object-oriented Real-time distributed Computing (ISORC'2K), Newport Beach, Ca., USA, March 15-17, 2000
[PDF]
M. Mock and E. Nett
On the coordination of Autonomous Systems
5th IEEE International Workshop on Object-Oriented Real-Time Dependable Systems, Monterey, 1999 (proceedings published in 2000).
[PDF]
Sandrini, F., Di Giandomenico F., Bondavalli, A., Nett, E.
Scheduling Solutions for the Integrated Tolerance to Value and Timing Faults
3nd IEEE International Symposium on Object-oriented Real-time distributed Computing (ISORC'2K), Newport Beach, Ca., USA, March 15-17, 2000.

1999

Michael Mock, Reiner Frings, Edgar Nett
An Approach to Fault Tolerant Clock Synchronization for Wireless Local Area Networks
Proceedings of the 15. GI/ITG-Fachtagung ARCS'99: Architektur von Rechnersystemen, Jena, Oct 4.-7., 1999, Seiten 61-67, Druck: Universität Jena, ISSN 0949-3042
[PDF]
L. B. Becker, M. Gergeleit, E. Nett, C. E. Pereira
An Integrated Environment for the Complete Development Cycle of an Object-Oriented Distributed Real-Time System
2nd IEEE International Symposium on Object-oriented Real-time distributed Computing (ISORC'99), Saint-Malo, France, May 2 - 5, 1999, Seiten 165-171, ISBN 0-7695-0207-5
[URL]
M. Mock, E. Nett, S. Schemmer
Efficient Reliable Real-Time Group Communication for Wireless Local Area Networks
Third European Dependable Computing Conference EDCC-3, Prague, Czech Republic, Sep. 15-17, 1999, Seiten 380-397, ISBN 3-540-66483-1, Springer
[PDF]
Martin Gergeleit and Edgar Nett
JewelNT: Monitoring of Distributed Real-Time Application on Windows NT
Proceedings of the 3rd Annual IASTED International Conference on Software Engineering and Applications (SEA'99), Scottsdale, Arizona, USA, October 6-8, 1999, pp. 325-328, ISBN 0-88986-273-7
[PDF]
Martin Gergeleit, Edgar Nett, Jörg Fitzner
On-line Prediction of Execution Times - A Basis for Adaptive Scheduling
Fourth International Workshop on Object-oriented Real-time Dependable Systems, Santa Barbara, California, February 1999, ISBN 0-7695-0101-X, Seiten 186 - 194
[URL]
Michael Mock, Edgar Nett
Real-Time Communication in Autonomous Robot Systems
The Fourth International Symposium on Autonomous Decentralized Systems (ISADS'99), Tokyo, Japan, March 21-23, 1999, Seiten 34 - 41, ISBN 0-7695-0137-0
[PDF]
Edgar Nett
Windows CE and Real Time - More than a Marketing Message?
Seminário Nacional de Controle e Automação, Industrial, Elétrica e de Telecomunicações, Salvador, Brasilien, Nov. 10 - 12, 1999