Myung-Eun Kim, Cheonyong Kim, Yongbin Yim, Sang-Ha Kim, Young-Sung Son

KIPS Transactions on Computer and Communication Systems, Vol. 7, No. 12, pp. 301-312, Dec. 2018
https://doi.org/10.3745/KTCCS.2018.7.12.301,   PDF Download:
Keywords: Continuous Objects, Sink Mobility, Energy Efficiency, IWSNs
Abstract

In industrial wireless sensor networks, the continuous object detection such as fire or toxic gas detection is one of major applications. A continuous object occurs at a specific point and then diffuses over a wide area. Therefore, many studies have focused on accurately detecting a continuous object and delivering data to a static sink with an energy-efficient way. Recently, some applications such as fire suppression require mobile sinks to provide real-time response. However, the sink mobility support in continuous object detection brings challenging issues. The existing approaches supporting sink mobility are designed for individual object detection, so they establish one-to-one communication between a source and a mobile sink for location update. But these approaches are not appropriate for a continuous object detection since a mobile sink should establish one-to-many communication with all sources. The one-to-many communication increases energy consumption and thus shortens the network lifetime. In this paper, we propose the origin-centric communication scheme to support sink mobility in a continuous object detection. Simulation results verify that the proposed scheme surpasses all the other work in terms of energy consumption.

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