A Novel Management Scheme For Multilayered Satellite Networks

Management of single-layer satellite network is complex and it will need to deploy ground station in the whole world, this will bring complicated issues of geopolitics, also it doesn’t accord with national condition. Multilayered satellite network can be divided into data plane and management plane, so it doesn’t need deploy ground station in the whole world and could increase efficiency of management.Currently multilayer satellite networks are managed in the scheme of covering domain. This will need enough management satellites and make constellation design complex, and also it makes relationship of management change frequently, what’s more, this scheme will lead to weak invulnerability and robustness. To overcome these problems, we propose a management scheme of logical domain.We first introduce the design of multilayer satellite network in our scheme, especially the management constellation design. We put all the management satellites into one orbit and study different parameter of the management orbit. Then we elaborate realization of routing protocol on the basis of network architecture, include domain partition, cluster head selection, process of routing protocol, process of packets forwarding and so on. At last we elaborate how to enhance invulnerability and robustness.To evaluate performance of logical domain scheme, we set up different simulation scenarios with STK and MATLAB. The result of simulation shows that compared with traditional scheme of covering domain, we need fewer management satellites and management domain changes less frequently, at the same time both has little difference of routing convergence time.