Mobility Investigate

Query Processing Algorithm in Wireless Sensor Networks

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Executive Summary

Sensors have a function to gather environmental data in sensor networks. They operate by limited, small-size battery depending on applications. Thus there are several kinds of research efforts to make better use of local energy. In this paper, the authors propose multi-attribute query processing algorithm (Section Bit based scheme (SB)). In the initial setup, routing path is determined based on parent-child relationship by two phases and some partial information (section bits) about the sensing data of their descendant nodes are delivered to the parent in second phase (parent selection phase); that is, an attribute is divided into the same, small size, N sections and one bit is used to each section.

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