Normalized reliability index weighted by total capacity and its algorithm for a communication network

Exchange nodes, links and transmission capacity are three parameters for any communication network. In order to evaluate the reliability of communication network comprehensively in theory, the normalized reliability index weighted by total capacity is presented, which integrates three factors above. If a network state can work and its capacity is smaller than the designed value, it is not excluded but endowed with a normalized weight which is smaller than 1. A total algorithm is studied, for which algebraic or logic calculations are realized in all the calculating procedures including finding routes, calculating disjoint network set and achieving the corresponding capacity, which is easy to design program and avoids the complexity of manual calculations. The correctness and rationality of the algorithm is briefly demonstrated and the calculating course is explained through an example.