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Repair for distributed storage systems with erasure channels
KTH, School of Electrical Engineering (EES), Communication Theory.
KTH, School of Electrical Engineering (EES), Communication Theory.ORCID iD: 0000-0002-5407-0835
2013 (English)In: Communications (ICC), 2013 IEEE International Conference on, IEEE conference proceedings, 2013, 4058-4062 p.Conference paper (Refereed)
Abstract [en]

We study the repair problem of distributed storage systems in erasure networks where the packets transmitted from surviving nodes to the new node might be lost. The fundamental storage-bandwidth tradeoff is calculated by multicasting analysis in erasure networks. The optimal tradeoff bound can be asymptotically achieved when the number of transmission (packets) goes to infinity. For a limited number of transmission, we study the probability of successful regenerating. Then, we investigate two approaches of increasing the probability of successful regenerating, namely, by connecting more surviving nodes or by increasing the storage space of nodes. Using more nodes may pose larger delay and in certain situation it might not be possible to connect to more nodes too. We show that in addition to reducing repair bandwidth, increasing storage space can also increase reliability for repair.

Place, publisher, year, edition, pages
IEEE conference proceedings, 2013. 4058-4062 p.
, IEEE International Conference on Communications, ISSN 1550-3607
Keyword [en]
Distributed Storage Systems, Erasure Channels, Network coding
National Category
Communication Systems
URN: urn:nbn:se:kth:diva-140999DOI: 10.1109/ICC.2013.6655195ISI: 000349673804010ScopusID: 2-s2.0-84891353313ISBN: 978-146733122-7OAI: diva2:693772
2013 IEEE International Conference on Communications, ICC 2013; Budapest; Hungary; 9 June 2013 through 13 June 2013

QC 20140205

Available from: 2014-02-05 Created: 2014-02-05 Last updated: 2015-12-07Bibliographically approved

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ReferencesLink to record
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