Using mobile mules for collecting data from an isolated wireless sensor network

Yu-Chee Tseng*, Wan Ting Lai, Chi Fu Huang, Fang Jing Wu

*Corresponding author for this work

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

14 Scopus citations

Abstract

This paper considers storage management in an isolated WSN, under the constraint that the storage space per node is limited. We formulate the memory spaces of these sensor nodes as a distributed storage system. Assuming that there is a sink in the WSN that will be visited by mobile mules intentionally (e.g., pre-arranged buses) or occasionally (e.g., non-pre-arranged taxis), we address three issues: (1) how to buffer sensory data to reduce data loss due to shortage of storage spaces, (2) if dropping of data is inevitable, how to avoid higher priority data from being dropped, and (3) how to keep higher priority data closer to the sink, such that the mobile mules can download more important data first when the downloading time is limited. We propose a Distributed Storage Management Strategy (DSMS) based on a novel shuffling mechanism similar to heap sort. It allows nodes to exchange sensory data with neighbors based on only local information. To the best of our knowledge, this is the first work addressing distributed and prioritized storing strategies for isolated WSNs.

Original languageEnglish
Title of host publicationProceedings - 39th International Conference on Parallel Processing, ICPP 2010
Pages673-679
Number of pages7
DOIs
StatePublished - 6 Dec 2010
Event39th International Conference on Parallel Processing, ICPP 2010 - San Diego, CA, United States
Duration: 13 Sep 201016 Sep 2010

Publication series

NameProceedings of the International Conference on Parallel Processing
ISSN (Print)0190-3918

Conference

Conference39th International Conference on Parallel Processing, ICPP 2010
CountryUnited States
CitySan Diego, CA
Period13/09/1016/09/10

Keywords

  • Distributed computing
  • Distributed storage
  • Mule
  • Protocol
  • Wireless communication
  • Wireless sensor network

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