Research On The Performance Of Tactical Internet Backbone Based On Node Failure

Tactical Internet connects all combat units at different levels and realizes real-time sharing of battlefield information.The backbone network is the supporting network of the tactical Internet.The interference and damage to the backbone nodes can make a great influence on the tactical Internet.The influence of the node failure on the performance of the backbone network can provide the basis for the attack on the backbone network.The main work of this paper:(1)The structure and business type of the tactical Internet backbone network are introduced,and the performance index of the backbone network is studied,which lays the foundation for the modeling of the backbone network.The research method of the performance of the backbone network is compared and analyzed,and the performance of the backbone network is determined by OPNET modeling and simulation.(2)The backbone model is built.The vehicle communication equipment model and the system integrated workshop wireless channel model are constructed respectively,and the backbone network model is formed.The model is configured according to the backbone network service type.(3)Backbone network performance evaluation.Firstly,the evaluation basis and method of each performance index of backbone network are established.In view of the problem that OPNET can not synthetically evaluate the video conference service at present,an algorithm based on optimized VQM evaluation is proposed and the accuracy of the algorithm is verified.Secondly,based on OPNET simulation data,backbone network performance is evaluated.(4)The backbone network is constructed in the open scenario,assuming that the node failure due to interference,combat and other factors,simulation analysis of node failure on the backbone network performance and business performance impact.(5)The backbone network is built in the hilly scene.Firstly,the influence of the hilly terrain on the performance of the backbone network is simulated.Secondly,it is assumed that the node failure due to interference and striking is analyzed,and the influence of the node failure on the performance and service performance of the backbone network is simulated.