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Exact optimized-cost repair in multi-hop distributed storage networks
KTH, School of Electrical Engineering (EES), Communication Theory.
KTH, School of Electrical Engineering (EES), Communication Theory.ORCID iD: 0000-0002-5407-0835
2014 (English)In: 2014 IEEE International Conference on Communications, ICC, IEEE Computer Society, 2014, 4120-4124 p.Conference paper, Published paper (Refereed)
Abstract [en]

The problem of exact repair of a failed node in multi-hop networked distributed storage systems is considered. Contrary to the most of the current studies which model the repair process by the direct links from surviving nodes to the new node, the repair is modeled by considering the multi-hop network structure, and taking into account that there might not exist direct links from all the surviving nodes to the new node. In the repair problem of these systems, surviving nodes may cooperate to transmit the repair traffic to the new node. In this setting, we define the total number of packets transmitted between nodes as repair-cost. A lower bound of the repair-cost can thus be found by cut-set bound analysis. In this paper, we show that the lower bound of the repair-cost is achievable for the exact repair of MDS codes in tandem and grid networks, thus resulting in the minimum-cost exact MDS codes. Further, two suboptimal (achievable) bounds for the large scale grid networks are proposed.

Place, publisher, year, edition, pages
IEEE Computer Society, 2014. 4120-4124 p.
Keyword [en]
Distributed storage systems, Exact repair, Network coding
National Category
Communication Systems
Identifiers
URN: urn:nbn:se:kth:diva-157977DOI: 10.1109/ICC.2014.6883966Scopus ID: 2-s2.0-84907001014ISBN: 978-147992003-7 (print)OAI: oai:DiVA.org:kth-157977DiVA: diva2:774186
Conference
2014 1st IEEE International Conference on Communications, ICC 2014, 10 June 2014 through 14 June 2014, Sydney, NSW, Australia
Note

QC 20141222

Available from: 2014-12-22 Created: 2014-12-18 Last updated: 2014-12-22Bibliographically approved

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Xiao, Ming

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CiteExportLink to record
Permanent link

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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
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