Performance Prediction of a Network-Centric Warfare System
GEORGE MASON UNIV FAIRFAX VA CENTER OF EXCELLENCE IN COMMAND CONTROL COMMUNICATIONS AND INTELLIGENCE
Pagination or Media Count:
When a system consisting of sub-systems is used for a time critical mission, the delays associated with the network connecting these sub-systems may play a critical role in battle management. Consequently, the combined models must be able to represent the network delay properly. In this paper, the architecture of a system is layered into two levels a functional layer and a physical layer. Both architectural layers are developed as executable models the functional executable model in a Colored Petri net and the physical executable model in a queueing net. Both layered executable models are synthesized to develop a performance prediction model. The message-passing pattern is generated from the Petri net using a state space analysis technique. Then, the queueing net model processes these messages preserving the message-passing pattern. Once the network delays are measured, the delay values are inserted into the Petri net model. The example in this paper shows how a small network delay in a C3 system affects the outcome of a time critical mission. It also illustrates design choices and how to develop tactics to resolve the tolerance of the network delays.
- Information Science
- Command, Control and Communications Systems