Research Of The Access Network Mechanism And Network Management Method For Distributed Aircraft

The efficient network access technology of distributed aircraft is the basic content of modern tactical communication technology research.It is used to realize the interconnection and transmission between multiple nodes,formations and formations.For aircraft formations that perform battlefields or detect disaster relief missions,in order to meet the efficient transmission of aircraft nodes,it is necessary to manage them uniformly so as to achieve the purpose of optimizing channel resources and improving communication efficiency.The network access scheme proposed in this paper can improve the reliability of the system and the effectiveness of data transmission while ensuring the rapid establishment of the network,dynamic maintenance of the topology and management hierarchy.In view of the shortcomings of the current network access plan,this article has carried out the research and design of a highly efficient hierarchical network access management solution for aircraft.The network access plan supports multiple policy switchings to adapt to the complex task scenarios,topology configurations,and special communications environment characteristics of different air and sky platforms.The network access plan describes the network management of the aircraft node in two parts.At the same time,it combines the node capability status and location information to build a management hierarchy.Through the establishment of hierarchical structure selection and maintenance methods,failure recovery mechanisms and other technical details of management nodes such as late entry network,node exit network,node dropout,node overreach,change in management structure,formation split and reorganization and other situations in the formation maintenance,and then achieve protection the purpose of task execution quality and efficiency.In addition,this article addresses issues that need to be improved in the selection of control information exchange paths and information forwarding strategies often used in current network access plans.From the perspectives of reducing the complexity of the solution,improving the efficiency of information exchange,and ensuring the balance of network load,a multi-path information forwarding strategy was introduced that introduces the "sleep" state.In order to improve the interaction success rate and reduce the end-to-end interaction delay and the number of failed nodes,the self-adaptive adjustment of the information forwarding probability,the next hop maintenance and update scheme,and the failure suppression strategy guarantee the reliability of network access control information transmission efficient,At the same time,node load balancing is implemented,and premature failure of some nodes due to energy exhaustion is avoided.This article also makes a brief analysis of the MAC layer and uses a contention-based access protocol to match the operation of the network access management method in the aerospace network scenario by comparing it with a resource reservation mechanism.In general,the distributed aircraft network management method proposed in the paper mainly improved from the four aspects of network access process design,information forwarding strategy,selection and maintenance of hierarchical management structure,failure suppression,and restoration support.At the end of the article,OPNET was used as a simulation platform to build and validate the model and the strategy for all the improvements proposed above.The experimental results show that the network access program is effective in building the network,maintaining the maintenance and topology of the management structure,as well as the performance of network access delay,network throughput,information exchange rate,and network lifetime.