EBDC: An Energy-Balanced Data Collection Mechanism Using a Mobile Data Collector in WSNsReport as inadecuate




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Department of Computer Science and Information Engineering, Tamkang University, No. 151, Yingzhuan Road, Tamsui District, New Taipei City 25137, Taiwan





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Abstract The data collection problem is one of the most important issues in Wireless Sensor Networks WSNs. Constructing a tree from all sensor nodes to the sink node is the simplest way, but this raises the problem of energy unbalance since the sensors closer to the sink node would have much higher workloads from relaying data. To cope with the energy unbalance problem, a number of mobile-sink mechanisms have been proposed in recent years. This paper proposes an Energy-Balanced Data Collection mechanism, called EBDC, which determines the trajectory of a mobile data collector or mobile sink such that the data-relaying workloads of all sensors can be totally balanced. Theoretical analysis and performance evaluation reveal that the proposed EBDC mechanism outperforms the existing approaches in terms of network lifetime and the degree of energy balancing. View Full-Text

Keywords: wireless sensor networks; data collection; mobile sink; energy balancing wireless sensor networks; data collection; mobile sink; energy balancing





Author: Chih-Yung Chang * , Chih-Yu Lin and Chin-Hwa Kuo

Source: http://mdpi.com/



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