Invulnerability Evaluation of UAV Swarms Communication Network Based on Node Influence

Aiming at the damage of UAV swarms communication network in the denied environment, this paper proposes a method of invulnerability evaluation based on the node influence. Considering the node connectivity and its position in the network topology, the network efficiency reductions after node deletion and node degree are taken to measure the node influence. Based on the node influence, a network invulnerability entropy model is established, which can better represent the significance and dispersion of nodes with different influence in the network, to measure the network invulnerability when nodes are attacked. The simulation results show that the proposed method can better distinguish the difference of invulnerability between two UAV swarm communication networks with similar performance, and provide a theoretical basis for the design and optimization of the network structure.