IEICE Transactions on Information and Systems
Online ISSN : 1745-1361
Print ISSN : 0916-8532
Regular Section
Efficient In-Network Processing of Continuous Grouped Aggregation Queries in Sensor Networks
Inchul SONGYohan J. ROHMyoung Ho KIM
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2015 Volume E98.D Issue 4 Pages 960-963


In this letter, we propose an energy-efficient in-network processing method for continuous grouped aggregation queries in wireless sensor networks. As in previous work, in our method sensor nodes partially compute aggregates as data flow through them to reduce data transferred. Different from other methods, our method considers group information of partial aggregates when sensor nodes forward them to next-hop nodes in order to maximize data reduction by same-group partial aggregation. Through experimental evaluation, we show that our method outperforms the existing methods in terms of energy efficiency.

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© 2015 The Institute of Electronics, Information and Communication Engineers
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