Satellite-ground network emergency communication data cooperative transmission method

Abstract

The application provides a satellite-ground network emergency communication data cooperative transmission method and relates to the technical field of communication. Through construction of a satellite-ground cooperative communication system framework, multi-source link integration is realized, link state is dynamically perceived, and a candidate path set is generated. In combination with disaster situation service grading and a multi-service buffer queue model, a minimum queue overflow discard amount is taken as an optimization target to cooperatively determine a shunting ratio and a mirroring strategy. The method effectively alleviates the contradiction between link resource fluctuation and service demand surge, significantly reduces data packet loss risk, improves the reliability and timeliness of key service transmission, and has the advantages of improving satellite-ground link resource utilization, reducing queue overflow discard amount, and guaranteeing high-priority service transmission continuity.

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