Study on stability of complex networks via community structure

Abstract：Complex networks were initiated through the generating algorithm which aimed to simulating the real world process of the rumor short messages propagation.Then, the community structures of the complex networks were analyzed and categorized.On account of that, the improved node dynamic cascading failure model was available.Cascading failure on the networks was investigated based on the new model.In the different density values of community structures, the stability of networks was explored, respectively.Simulation result show that the stability of networks weakened at first and then enhanced with the increase of the community structures density value, and there exists threshold value which is related with the scale and capacity coefficient of networks.

Keyword：community structure;GN algorithm;cascading failure;networks stability;