Design Methodology of a Sensor Network Architecture Supporting Urgent Information and Its Evaluation

Tetsuya KAWAI  Naoki WAKAMIYA  Masayuki MURATA  

IEICE TRANSACTIONS on Communications   Vol.E91-B   No.10   pp.3232-3240
Publication Date: 2008/10/01
Online ISSN: 1745-1345
DOI: 10.1093/ietcom/e91-b.10.3232
Print ISSN: 0916-8516
Type of Manuscript: PAPER
Category: Network
sensor networks,  urgent information,  latency,  reliability,  

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Wireless sensor networks are expected to become an important social infrastructure which helps our life to be safe, secure, and comfortable. In this paper, we propose design methodology of an architecture for fast and reliable transmission of urgent information in wireless sensor networks. In this methodology, instead of establishing single complicated monolithic mechanism, several simple and fully-distributed control mechanisms which function in different spatial and temporal levels are incorporated on each node. These mechanisms work autonomously and independently responding to the surrounding situation. We also show an example of a network architecture designed following the methodology. We evaluated the performance of the architecture by extensive simulation and practical experiments and our claim was supported by the results of these experiments.