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Two-Layer Coding in Distributed Storage Systems With Partial Node Failure/Repair
KTH, School of Electrical Engineering (EES), Information Science and Engineering.
KTH, School of Electrical Engineering (EES), Information Science and Engineering.ORCID iD: 0000-0002-5407-0835
KTH, School of Electrical Engineering (EES), Information Science and Engineering.ORCID iD: 0000-0002-7926-5081
2017 (English)In: IEEE Communications Letters, ISSN 1089-7798, E-ISSN 1558-2558, Vol. 21, no 4, 726-729 p.Article in journal (Refereed) Published
Abstract [en]

We a distributed storage system where parts of the stored packets in storage nodes are subject to being lost. In a process, termed as the partial repair, the lost packets in a faulty node are recovered by the transmitted packets from other storage nodes and the available packets in the faulty node. To improve reliability of the stored data, and reduce the transmission costs, we propose a scheme that implements two-layer coding for storing files in the system. We study the minimum possible partial-repair bandwidth, and the codes that achieve the optimal bound.

Place, publisher, year, edition, pages
IEEE, 2017. Vol. 21, no 4, 726-729 p.
Keyword [en]
Network coding, Data storage systems, Optimization
National Category
Electrical Engineering, Electronic Engineering, Information Engineering
Identifiers
URN: urn:nbn:se:kth:diva-208260DOI: 10.1109/LCOMM.2016.2646678ISI: 000399388400010Scopus ID: 2-s2.0-85018173583OAI: oai:DiVA.org:kth-208260DiVA: diva2:1114105
Note

QC 20170622

Available from: 2017-06-22 Created: 2017-06-22 Last updated: 2017-06-22Bibliographically approved

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