Abstract
In this paper, we present a system simulation framework for the design and performance evaluation of complex wireless cyber-physical systems. We describe the simulator architecture and the specific developments that are required to simulate cyber-physical systems relying on multi-channel, multihop mesh networks. We introduce realistic and efficient physical layer models and a system simulation methodology, which provides statistically significant performance evaluation results with low computational complexity. The capabilities of the proposed framework are illustrated in the example of WirelessHART, a centralized, real-time, multi-hop mesh network designed for industrial control and monitor applications.
Highlights
Cyber-physical systems (CPS) represent the tight integration of physical systems with computing and networking capabilities
This section present a cyber-physical case study, namely we investigate the stability of a typical networked control system when the sensor measurements are transmitted over a WirelessHART-like wireless mesh network
Typical wireless real-time mesh networks, such as WirelessHART and ISA100.11a by the International Society of Automation (ISA), adopt the physical layer of the IEEE 802.15.4-2006 standard [17] almost unchanged, complementing it with a proprietary Medium Access Control (MAC) scheme that is better suited for time-critical applications than the dominantly contention-based
Summary
Cyber-physical systems (CPS) represent the tight integration of physical systems with computing and networking capabilities. A very well-established example of such an approach is WirelessHART [1], a widely-used wireless industrial control/sensor protocol that offers real-time guarantees for delay-sensitive applications. Such wireless standards do not mandate specific algorithms for performance-critical tasks, such as scheduling of nodes and/or physical layer resources in the link layer or providing an end-to-end routing. We propose a novel simulation framework, which overcomes the above-mentioned limitations This framework can simulate a centralized wireless real-time mesh network efficiently.
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