Research On Failure Of Interdependent Network Based On Asymmetric Load-capacity Model

Different network systems in the real world are being interdependent, which makes researchers focus on the failure of interdependent networks. Most of the previous researches are on two research basis: the important level for the nodes of each subnetwork is equal and each subnetwork obeys the same cascading rule or mechanism. To break these two bases, this study adds asymmetric important level and asymmetric transfer rule of load to general load-capacity model, which generates the asymmetric load-capacity model.Compared with the general load-capacity model, the simulation illustrate following results: asymmetric transfer rule of load accelerates the failure of heterogeneous interdependent networks. The sub-network with high asymmetric important level has great impact on the failure of the interdependent networks. The heterogeneous interdependent networks generate more failure. Interdependent networks with high interdependent level spread more failure. Interdependent networks with high clustering coefficient generate more failure. The failure of the node with lowest degree can trigger most failure in interdependent ER networks, while the failure of the node with highest degree can trigger most failure in interdependent BA networks. According to the simulation results, relative resistance strategies were put forward.