Duty cycle aware spatial query processing in wireless sensor networks

Wireless Sensor Networks (WSNs) can be viewed as energy constrained database systems, and join query processing is a very important topic in the field of sensor based systems. Join query for WSNs in a multi-dimensional and continuous way has not been widely explored, as well as is not energy efficient enough. In this paper, we proposed a continuous Multi-attribute Join Query Processing (MJQP) within latest sampling periods for WSNs based applications. We developed a filter-based scheme to discard non-joining tuples, which the center points of filters are identified and updated. Besides, we design an optimized solution to reduce the transmission of non-joining tuples, which is very benefit on energy efficiency. Experiments on real-world data set show that our methods outperform the centralized algorithm.

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Duty cycle aware spatial query processing in wireless sensor networks

Cited by 3 publications

References 38 publications

A prediction-based asynchronous MAC protocol for heavy traffic load in wireless sensor networks

A prediction-based asynchronous MAC protocol for heavy traffic load in wireless sensor networks

Minimum Delay Query in Low-duty-cycle Sensor Networks

Multi-Attribute Join Query Processing in Sensor Networks

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