A mobility-aware approach for maintaining data consistency in unstructured mobile P2P systems

Chuan Chi Lai, Chuan Ming Liu

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

In unstructured mobile peer-to-peer systems (MP2P), the frequent link breakages lead frequent topology mismatching problems and data transmission failures due to high mobility of nodes. The overhead of data transmission and synchronization cannot be neglected. In order to keep the data consistent, flooding is a fundamental and straightforward data synchronization mechanism since a mobile node doesn't know which else has the same shared data item. However, data flooding causes the broadcast storm problem. In this paper, we propose a mobility-aware data update approach (MADU) to improve the data dissemination and to reduce the overhead of maintaining the consistency of shared data items in an MP2P network. We use safe-time which is derived from the neighbor's location and speed to determine the time for a node to do the checking and updating between the neighbor nodes and itself. We also consider the mobile nodes connectivity and access frequency of a data item as the factors to trigger the update process. By combining the mobility information of nodes, network connectivity, and access frequency of data items, we set a reasonable data update mechanism, which can significantly decrease the number of retransmissions and redundant messages so as to reduce the overhead of maintaining the data consistency.

Original languageEnglish
Title of host publicationICUFN 2015 - 7th International Conference on Ubiquitous and Future Networks
PublisherIEEE Computer Society
Pages695-700
Number of pages6
ISBN (Electronic)9781479989935
DOIs
StatePublished - 7 Aug 2015
Event7th International Conference on Ubiquitous and Future Networks, ICUFN 2015 - Sapporo, Japan
Duration: 7 Jul 201510 Jul 2015

Publication series

NameInternational Conference on Ubiquitous and Future Networks, ICUFN
Volume2015-August
ISSN (Print)2165-8528
ISSN (Electronic)2165-8536

Conference

Conference7th International Conference on Ubiquitous and Future Networks, ICUFN 2015
CountryJapan
CitySapporo
Period7/07/1510/07/15

Keywords

  • data consistency
  • data synchronization
  • mobile peer-to-peer systems
  • mobility-awareness
  • safe-time

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    Lai, C. C., & Liu, C. M. (2015). A mobility-aware approach for maintaining data consistency in unstructured mobile P2P systems. In ICUFN 2015 - 7th International Conference on Ubiquitous and Future Networks (pp. 695-700). [7182633] (International Conference on Ubiquitous and Future Networks, ICUFN; Vol. 2015-August). IEEE Computer Society. https://doi.org/10.1109/ICUFN.2015.7182633