Energy-Efficient Reverse Skyline Query Processing over Wireless Sensor Networks
Energy-Efficient Reverse Skyline Query Processing over Wireless Sensor Networks
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DOI：
10.1109/tkde.2011.64
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发表时间：
2012-07
影响因子：
8.9
通讯作者：
Guoren Wang;Junchang Xin;Lei Chen;Yunhao Liu
中科院分区：
文献类型：
--
作者：
Guoren Wang;Junchang Xin;Lei Chen;Yunhao Liu
Reverse skyline query plays an important role in many sensing applications, such as environmental monitoring, habitat monitoring, and battlefield monitoring. Due to the limited power supplies of wireless sensor nodes, the existing centralized approaches, which do not consider energy efficiency, cannot be directly applied to the distributed sensor environment. In this paper, we investigate how to process reverse skyline queries energy efficiently in wireless sensor networks. Initially, we theoretically analyzed the properties of reverse skyline query and proposed a skyband-based approach to tackle the problem of reverse skyline query answering over wireless sensor networks. Then, an energy-efficient approach is proposed to minimize the communication cost among sensor nodes of evaluating range reverse skyline query. Moreover, optimization mechanisms to improve the performance of multiple reverse skylines are also discussed. Extensive experiments on both real-world data and synthetic data have demonstrated the efficiency and effectiveness of our proposed approaches with various experimental settings.
