XIE Zhijun, YE Hongwu. Connected Key Node Set-Based Skyline Query Processing over Wireless Sensor Networks[J]. Chinese Journal of Electronics, 2015, 24(4): 717-724. doi: 10.1049/cje.2015.10.009
Citation: XIE Zhijun, YE Hongwu. Connected Key Node Set-Based Skyline Query Processing over Wireless Sensor Networks[J]. Chinese Journal of Electronics, 2015, 24(4): 717-724. doi: 10.1049/cje.2015.10.009

Connected Key Node Set-Based Skyline Query Processing over Wireless Sensor Networks

doi: 10.1049/cje.2015.10.009
Funds:  This work was supported by the National Natural Science Foundation of China (No.51303157), the Municipal Natural Science Foundation of Ningbo (No.2013A610044, No.2015A610119), the Ningbo Municipal Technology Innovation Team (No.2011B81002), and the Open Fund for a Key-Discipline of Information and Communication Engineering of Zhejiang Province.
  • Received Date: 2014-07-21
  • Rev Recd Date: 2015-01-29
  • Publish Date: 2015-10-10
  • Skyline query has been applied widely in sensor networks. We propose a connected key node set-based skyline Efficient skyline query processing (EffiSky) algorithm to minimize communication traffic for resources-limited sensor networks. In the EffiSky algorithm, we discover a Connected key node set (CKNS) used to transmit and collect queries and results among the sensor nodes, which can reduce the average communication cost of the networks significantly. We set up a two-level filtering scheme that prunes many useless dominated tuples. Both the theoretical analysis and experiment results demonstrate that EffiSky excels the existing work in terms of network traffic, scalability in network expansion, node density, and dimension change.
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