A spatiotemporal query service for mobile users in sensor networks

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A spatiotemporal query service for mobile users in sensor networks (2005)

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by Chenyang Lu , Guoliang Xing , Octav Chipara , Chien-liang Fok , Sangeeta Bhattacharya

Venue:	In ICDCS ’05
Citations:	31 - 3 self

BibTeX

@INPROCEEDINGS{Lu05aspatiotemporal,
    author = {Chenyang Lu and Guoliang Xing and Octav Chipara and Chien-liang Fok and Sangeeta Bhattacharya},
    title = {A spatiotemporal query service for mobile users in sensor networks},
    booktitle = {In ICDCS ’05},
    year = {2005},
    pages = {381--390},
    publisher = {IEEE Computer Society}
}

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Abstract

This paper presents MobiQuery, a spatiotemporal query service that allows mobile users to periodically gather information from their surrounding areas through a wireless sensor network. A key advantage of MobiQuery lies in its capability to meet stringent spatiotemporal performance constraints crucial to many applications. These constraints include query latency, data freshness and fidelity, and changing query areas due to user mobility. A novel justin-time prefetching algorithm enables MobiQuery to maintain robust spatiotemporal guarantees even when nodes operate under extremely low duty cycles. Furthermore, it significantly reduces the storage cost and network contention caused by continuous queries from mobile users. We validate our approach through both theoretical analysis and simulation results under a range of realistic settings. 1

Keyphrases

mobile user spatiotemporal query service sensor network network contention storage cost user mobility many application novel justin-time prefetching algorithm simulation result query latency robust spatiotemporal guarantee data freshness query area stringent spatiotemporal performance constraint gather information theoretical analysis wireless sensor network key advantage low duty cycle realistic setting continuous query

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