A space-ground integrated satellite communication network simulation system and method

Abstract

Embodiments of the invention provide a space-earth integrated satellite communication network simulation system and method. The method is applied to a topological management module in the space-earthintegrated satellite communication network simulation system. The method comprises steps of initializing a topology structure of an LEO satellite communication network; according to preset time interval for updating the topology structure of the LEO satellite communication network, updating the topology structure of the LEO satellite communication network at fixed time; according to a preset simulation time interval, determining whether to terminate simulation of the LEO satellite communication network, if not, returning to the step of updating the topology structure of the LEO satellite communication network at fixed time, and if yes, terminating simulation. In the method, the topology structure of the LEO satellite communication network is updated at fixed time, so that the LEO satellitecommunication network with millions of user nodes is simulated, and a problem of mobile management of millions of users in the space-earth integrated satellite communication network is solved.

Description

technical field [0001] The invention relates to the technical field of satellite communication simulation, in particular to a space-ground integrated satellite communication network simulation system and method. Background technique [0002] At present, the space-ground integrated satellite communication network is still in the research stage. Among them, LEO (Low Earth Orbit, Low Earth Orbit) satellite communication has many advantages such as small communication time delay, good security, and high practicability, and has become an important part of the construction of space-ground integrated satellite communication network. [0003] LEO satellites move at high speed relative to the ground, and the coverage of the target area is time-period, which makes the switching between terminals and satellites in the satellite communication network very frequent, and as the number of users continues to increase, the coverage area of ​​each LEO satellite The number of users is huge. ...

AI Technical Summary

Problems solved by technology

However, in the LEO satellite communication network, the number of users under each satellite coverage area is as high as one million. The EXata network simulation system uses a single-core task processing method by default. Even if the code is written to make it use multi-core processing, the simulation efficiency is still very low.

Therefore, the EXata network simulation platform cannot realize the mobility management of millions of large-scale users in the space-ground integrated satellite communication network

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