Abstract:

A model of military information grid cascading failure is constructed, and the characteristic of military information grid (MIG) cascading failure is thoroughly analyzed, based on which a robustness strategy of MIG building is proposed. Based on the theoretic analysis model of interdependence networks, MIG is divided into communicating basic net and information service net. The algorithm of betweenness is improved, so affection of service relation to communicating flux could be validated. The proposed model defines the judging regulation of node cascading, and studies the reassigning rules of communicating load and service load of cascading nodes, so the principle of cascading spread can be studied too. By introducing the punish function of cost and the concept of mainstay nodes, a mathematical model for studying robustness strategy of MIG building is built, which gives consideration to investment cost and resistance-failure. Simulation experiments show that, resistance-cascading failure of MIG can be prompted obviously just by enhancing capacity of a few of mainstay nodes.