Research And Implementation Of The Mobility Support Mechanism Of The Space-earth Integration Network Based On Identity Mapping System

With the continuous development and innovation of information networks and satellite communication technology,global network information is constantly infiltrating into people’s lives and changing people’s lives.The space-earth integration network based on identity mapping system combines space-earth integration network and identify network technology.While ensuring global coverage and random access,it adopts the concepts of separation of user space and network space,and separation of resources and location,and solves the disadvantages of traditional protocol systems such as poor mobility,poor security,poor real-time performance,poor intelligence,and low utilization.However,the time delay caused by the long distance between the satellite network nodes and the periodic movement and handover of the satellite network nodes affect the communication performance of the space-earth integration network based on identity mapping system.Therefore,the research on the mobility support mechanism is an important part of the development of the space-earth integration network based on identity mapping system.Aiming at how to solve the mobile-related issues such as handover management of communication terminals in the space-earth integration network based on identity mapping system,this paper studies and proposes a mobile support mechanism suitable for the space-earth integration network based on identity mapping system.The paper first analyzes the research background and significance of the space-earth integration network mobile support mechanism and the current research status of related technologies at home and abroad,and points out advantages and disadvantages of the existing technologies.Then paper introduces the related technologies of the space-earth integration network based on identity mapping system.On the basis of the above-mentioned technologies,the paper proposes and designs a mobility support mechanism: for different handover scenarios,two handover mechanisms are used to coexist.For the active handover of the terminal,identify mapping movement mechanism suitable for 16-bit protocol stack is adopted.Aiming at the handover caused by the regular movement of low orbit satellites,next time map of the identify mapping module is used to pre-switch,so as to reduce the handover delay and handover cost,and ensure the communication stability of the space-earth integration network based on identity mapping system.This paper builds a Linux experimental platform,implements the mobile handover mechanism,and tests the handover performance of the mobile handover mechanism.The results show that the mobility support mechanism with the coexistence of the two mobile handoff mechanisms is suitable for the space-earth integration network based on identity mapping system.It reduces the delay and packet loss during handover.There is a certain reference value for the further development of the space-earth integration network based on identity mapping system.Finally,this paper summarizes the work done and looks forward to the future work.