  Controlling the global statuses of a network by its local dynamic parameters
is an important issue, and it is difficult to obtain the direct solution for.
The transformation method, which is originally used to control physical field
by designing material parameters, is proposed to obtain the necessary local
dynamic parameters when the global statuses of a network system are prescribed
in a space. The feasibility of this transformation method is demonstrated and
verified by two examples (a communication field cloak and a communication field
bender) in the network system. It is shown that the global system state can be
controlled by adjusting the local nodes dynamics with the transformation
method. Simulation results also show that the transformation method provides a
powerful, intuitive and direct way for the global statuses controlling of
network systems.
