A processing approach for event-based location aware queries in hybrid wireless sensor networks |
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Authors: | Liang Hong Yansheng Lu |
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Institution: | (1) College of Computer Science and Technology, Huazhong University of Science and Technology, Wuhan, 430074, Hubei, China |
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Abstract: | In hybrid wireless sensor networks, sensor mobility causes the query areas to change dynamically. Aiming at the problem of
inefficiency in processing the data aggregation queries in dynamic query areas, this paper proposes a processing approach
for event-based location aware queries (ELAQ), which includes query dissemination algorithm, maximum distance projection proxy
selection algorithm, in-network query propagation, and aggregation algorithm. ELAQs are triggered by the events and the query
results are dependent on mobile sensors’ location, which are the characteristics of ELAQ model. The results show that compared
with the TinyDB query processing approach, ELAQ processing approach increases the accuracy of the query result and decreases
the query response time.
Biography: HONG Liang (1982–), male, Ph.D. candidate, research direction: database system, sensor network. |
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Keywords: | query processing wireless sensor network mobility data aggregation event |
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