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Bounded recovery in distributed discrete real-time simulations
University of Skövde, School of Humanities and Informatics.
2006 (English)Report (Other (popular scientific, debate etc.))
Abstract [en]

This thesis proposal defines the problem of recovery in distributed discrete real-time simulations with external actions; real-time simulations with simulation actions in the real world. A problem that these simulations encounter is that they cannot rely on rollback-based recovery (use of checkpoints) for two reasons. First, some actions in the "real world" cannot be undone, and second, the time allowed for recovery tends to be short and bounded. As a result there is a need for some form of error masking for this category of simulations. We propose an infrastructure for these simulations with external actions based on an active distributed real-time database that features replication of the distributed simulation. The degree of replication is based on the dependability requirements of the individual nodes in the simulation.

A guideline for how to decompose a distributed real-time simulation into parts with different requirements on the replication protocol is also defined as an interesting topic to investigate further. We introduce the simulation infrastructure "Simulation DeeDS" featuring a replication-based recovery strategy for the category of simulations mentioned. We also show that some information fusion applications are indeed examples of applications that need real-time simulation with external actions and as such can benefit from the proposed infrastructure.

Place, publisher, year, edition, pages
Skövde: Institutionen för kommunikation och information , 2006.
Series
IKI Technical Reports, HS-IKI-TR-06-008
National Category
Information Science
Identifiers
URN: urn:nbn:se:his:diva-1257OAI: oai:DiVA.org:his-1257DiVA: diva2:2392
Available from: 2008-06-17 Created: 2008-06-17 Last updated: 2012-12-17Bibliographically approved

Open Access in DiVA

fulltext(325 kB)388 downloads
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Brohede, Marcus
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Total: 388 downloads
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CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • harvard1
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf