Page 107 - Intelligent Communication Systems
P. 107
CHAPTER 9 / DESIGN METHODOLOGY FORTELECOMMUNiCATION SERVICES 89
FIGURE 9.4 State transition.
According to graph theory, this state transition is a directed graph, that is, a
graph where nodes are linked by a directed branch.
93 GRAPH THEORY
(1) A graph is composed of a node and a branch.
(2) A graph that has a directed branch is a directed graph (see Figure 9.5).
In the directed graph where node i is linked to node j by a directed
