5.6 Networked stochastic systems
In the previous discussions, we have assumed a single sensor and a single controller. However, in practice, there can be many sensors and controllers in a CPS. For example, in smart grids, there may be thousands of sensors (PMUs) and controllers (since each generator has a controller). Hence in this section, we discuss the relationship between entropy and communications in a networked CPS.
5.6.1 System Model of Networked CPS
Physical dynamics
We consider N nodes with coupled physical dynamics in a cyber physical system (e.g., N generators in a power grid). These nodes form a network, in which i ∼ j means that nodes i and j are adjacent. We assume that the graph is connected; i.e., there are no isolated components. ...
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