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http://dx.doi.org/10.7472/jksii.2016.17.6.33

An Energy-Balancing Technique using Spatial Autocorrelation for Wireless Sensor Networks  

Jeong, Hyo-nam (Department of Information and Media, Seoul Women's University)
Hwang, Jun (Department of Information and Media, Seoul Women's University)
Publication Information
Journal of Internet Computing and Services / v.17, no.6, 2016 , pp. 33-39 More about this Journal
Abstract
With recent advances in sensor technology, CMOS-based semiconductor devices and networking protocol, the areas for application of wireless sensor networks greatly expanded and diversified. Such diversification of uses for wireless sensor networks creates a multitude of beneficial possibilities for several industries. In the application of wireless sensor networks for monitoring systems' data transmission process from the sensor node to the sink node, transmission through multi-hop paths have been used. Also mobile sink techniques have been applied. However, high energy costs, unbalanced energy consumption of nodes and time gaps between the measured data values and the actual value have created a need for advancement. Therefore, this thesis proposes a new model which alleviates these problems. To reduce the communication costs due to frequent data exchange, a State Prediction Model has been developed to predict the situation of the peripheral node using a geographic autocorrelation of sensor nodes constituting the wireless sensor networks. Also, a Risk Analysis Model has developed to quickly alert the monitoring system of any fatal abnormalities when they occur. Simulation results have shown, in the case of applying the State Prediction Model, errors were smaller than otherwise. When the Risk Analysis Model is applied, the data transfer latency was reduced. The results of this study are expected to be utilized in any efficient communication method for wireless sensor network monitoring systems where all nodes are able to identify their geographic location.
Keywords
wireless sensor networks; mobile sink; spatial autocorrelation;
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