Abstract

ABSTRACTAn industrial network system consists of small, inexpensive nodes equipped with embedded processors and wireless communication, which enables flexible deployment in the industrial applications. Multiple phases are natural in many practical industrial network systems which further have multiple ordered performance levels. The networking needs of industrial devices and applications are distinct from the consumer world, especially in terms of reliability and security. The modeling and analysis of phased-mission industrial network systems remains a challenging task due to its inherent complexity. This paper proposes a new decision-diagram-based method, called multiple-terminal binary decision diagrams (MTBDD), for the analysis of phased-mission industrial network system with multiple ordered performance levels. Various performability measures are considered. Application and advantages of the proposed method are demonstrated through examples and case study. Empirical results show that our method can offer smaller model sizes and more efficient computation of reliability and performance measures as compared to the traditional separable approach.

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