Distributed fault-tolerant backup-placement in overloaded wireless sensor networks

Gal Oren, Leonid Barenboim, Harel Levin

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

4 Scopus citations

Abstract

Wireless Sensor Networks (WSNs) frequently have distinguished amount of data loss, causing data integrity issues. Sensor nodes are inherently a cheap piece of hardware - due to the common need to use many of them over a large area - and usually contain a small amount of RAM and flash memory, which are insufficient in case of high degree of data sampling. An overloaded sensor can harm the data integrity, or even completely reject incoming messages. The problem gets even worse when data should be received from many nodes, as missing data becomes a more common phenomenon as deployed WSNs grow in scale. In cases of an overflow, our Distributed Adaptive Clustering algorithm (D-ACR) reconfigures the network, by adaptively and hierarchically re-clustering parts of it, based on the rate of incoming data packages in order to minimize the energy-consumption, and prevent premature death of nodes. However, the re-clustering cannot prevent data loss caused by the nature of the sensors. We suggest to address this problem by an efficient distributed backup-placement algorithm named DBP-ACR, performed on the D-ACR refined clusters. The DBP-ACR algorithm re-directs packages from overloaded sensors to more efficient placements outside of the overloaded areas in the WSN cluster, thus increasing the fault-tolerance of the network and reducing the data loss.

Original languageEnglish
Title of host publicationBroadband Communications, Networks, and Systems - 9th International EAI Conference, Broadnets 2018, Proceedings
EditorsSaud Althunibat, Victor Sucasas, Georgios Mantas
PublisherSpringer Verlag
Pages212-224
Number of pages13
ISBN (Print)9783030051945
DOIs
StatePublished - 1 Jan 2019
Event9th International EAI Conference on Broadband Communications, Networks, and Systems, Broadnets 2018 - Faro, Portugal
Duration: 19 Sep 201820 Sep 2018

Publication series

NameLecture Notes of the Institute for Computer Sciences, Social-Informatics and Telecommunications Engineering, LNICST
Volume263
ISSN (Print)1867-8211

Conference

Conference9th International EAI Conference on Broadband Communications, Networks, and Systems, Broadnets 2018
Country/TerritoryPortugal
CityFaro
Period19/09/1820/09/18

Keywords

  • Data loss
  • Distributed backup-placement
  • Networks connectivity
  • Wireless sensor networks

ASJC Scopus subject areas

  • Computer Networks and Communications

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