Ms. Yan Zheng Profile

Yan Zheng

at Heilongjiang Institute of Technology

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Proceedings Article | 27 March 2015 Paper

Parallel multi-join query optimization algorithm for distributed sensor network in the internet of things

Yan Zheng

Proceedings Volume 9436, 94360Y (2015) https://doi.org/10.1117/12.2085636

KEYWORDS: Sensors, Internet, Databases, Sensor networks, Optimization (mathematics), Data storage, Data communications, Data processing, Evolutionary algorithms, Genetic algorithms

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Internet of things (IoT), focusing on providing users with information exchange and intelligent control, attracts a lot of attention of researchers from all over the world since the beginning of this century. IoT is consisted of large scale of sensor nodes and data processing units, and the most important features of IoT can be illustrated as energy confinement, efficient communication and high redundancy. With the sensor nodes increment, the communication efficiency and the available communication band width become bottle necks. Many research work is based on the instance which the number of joins is less. However, it is not proper to the increasing multi-join query in whole internet of things. To improve the communication efficiency between parallel units in the distributed sensor network, this paper proposed parallel query optimization algorithm based on distribution attributes cost graph. The storage information relations and the network communication cost are considered in this algorithm, and an optimized information changing rule is established. The experimental result shows that the algorithm has good performance, and it would effectively use the resource of each node in the distributed sensor network. Therefore, executive efficiency of multi-join query between different nodes could be improved.

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