Desigh and emulation of satellite constellation communication networks architecture based on mobile networks
基于移动式网络技术的卫星星座网络结构设计与仿真

As the on-board processing ability strengthens day by day, reducing the dependence of satellite constellation communication network to the ground network, and strengthening the ability of accessing IP service for the user segment, are the key questions which the future satellite constellation network will need to solve. The LEO satellite constellation network system structure based on the mobile network technology was proposed, the novel network strategy of satellite constellation network and the handoff model between satellite and ground were proposed, and the network performance simulation result based on the NS2 was submited. The simulation experiment indicates that, this method will be one effective method which can meet the future satellite constellation development need, and the handoff is the primary factor that influences the time delay of data transmission in satellite constellation communication networks.