Tree-Structured Network Based Hierarchical Complex Event Processing in Wireless Sensor Networks

2014 ◽  
Author(s):  
Mengyuan Xu ◽  
Zhihan Liu ◽  
Jinglin Li
Keyword(s):  
Wireless Sensor Networks ◽  
Sensor Networks ◽  
Complex Event Processing ◽  
Wireless Sensor ◽  
Event Processing

scholarly journals An Adaptive Parallel Processing Strategy for Complex Event Processing Systems over Data Streams in Wireless Sensor Networks

Sensors ◽  
2018 ◽  
Vol 18 (11) ◽  
pp. 3732 ◽  
Author(s):  
Fuyuan Xiao ◽  
Masayoshi Aritsugi
Keyword(s):  
Wireless Sensor Networks ◽  
Sensor Networks ◽  
Parallel Processing ◽  
Data Streams ◽  
Time Window ◽  
Complex Event Processing ◽  
Wireless Sensor ◽  
Event Processing ◽  
Processing Strategy ◽  
Event Stream

Efficient matching of incoming events of data streams to persistent queries is fundamental to event stream processing systems in wireless sensor networks. These applications require dealing with high volume and continuous data streams with fast processing time on distributed complex event processing (CEP) systems. Therefore, a well-managed parallel processing technique is needed for improving the performance of the system. However, the specific properties of pattern operators in the CEP systems increase the difficulties of the parallel processing problem. To address these issues, a parallelization model and an adaptive parallel processing strategy are proposed for the complex event processing by introducing a histogram and utilizing the probability and queue theory. The proposed strategy can estimate the optimal event splitting policy, which can suit the most recent workload conditions such that the selected policy has the least expected waiting time for further processing of the arriving events. The proposed strategy can keep the CEP system running fast under the variation of the time window sizes of operators and the input rates of streams. Finally, the utility of our work is demonstrated through the experiments on the StreamBase system.

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