Research on Network Survivability Based on Path Diversity

This paper proposes a simple metric of path diversity dedicated for the type of end-to-end network.End-to-end network is modeled as a directed acyclic graph,and transformed into a segmented form.The path diversity index of each segment is computed and the joint entropy of each segment is used as the diversity measurement of the overall network.Analysis is performed on survivability improving methods based on path diversity.