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http://dx.doi.org/10.5392/JKCA.2010.10.8.051

A TDMA Based Data Collection Scheme Considering the Variability of Data in Sensor Networks with Mobile Sink  

Park, Hyoung-Soon (매크로임팩트(주))
Yeo, Myung-Ho (국방과학 연구소)
Seong, Dong-Ook (충북대학교 정보통신 공학과)
Yoo, Jae-Soo (충북대학교 정보통신 공학과)
Publication Information
Abstract
In data collection using a mobile sink, the time that sensor nodes are included in its communication radius is not uniform. The data collection schedule in non-uniform time is needed between a mobile sink and sensor nodes for efficient data collection. The existing data collection schemes using a mobile sink considered staying time in its communication range and data collected by the mobile sink. However, they did not consider the characteristics of data collected in sensor networks. In this paper, we propose a TDMA based schedule scheme that consists of the data collection period by each sensor nodes and the data collection period between a mobile sink and sensor nodes. Moreover, we propose a data collection scheme considering the variability of data in sensor networks. The proposed data collection scheme collects only data that changed larger than the threshold set by the user. In order to show the superiority of the proposed scheme, we compare it with DWEDF that aims to collect data uniformly. As a result, our experimental results show that the proposed scheme reduces about 23% energy consumption and the data collection failure of sensor nodes over the DWEDF.
Keywords
Sensor Network; Mobile Sink; Data Collection;
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Times Cited By KSCI : 1  (Citation Analysis)
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