Handling Sensor Data in Rapidly Changing Environments to Support Soft Real-Time Requirements
Anindya Datta, Igor R. Viguier · INFORMS journal on computing · 2000
The objective of this paper is to perform an in-depth study on the problem of handling sensor data in rapidly changing environments. Due to the dynamic nature of this data, as well as specific reporting patterns, the transactions that manipulate this data have particular requirements. Specifically, these requirements are recency and temporal consistency. We study strategies to satisfy these requirements, while maintaining predetermined levels of Quality of Service (QOS) in the system. We identify a number of algorithms and perform a detailed performance study. This study enables us to make certain general recommendations regarding the properties of algorithms designed to handle rapidly changing sensor data. Keywords: Sensor Data, Recency, Temporal Consistency, Soft Real-Time, QOS, Performance Evaluation 1 Introduction Database systems that attempt to model and control external environments have attracted the attention of researchers in recent times. The application domains for such...