Dynamic and Static Hybrid Routing Method for Space-Ground Integrated Network

Abstract

The invention discloses a space-ground integrated network dynamic and static hybrid routing method, which aims to provide a method that adapts to the continuous dynamic change of the space-ground integrated network topology, the load capacity of the node star is limited, the transmission time of the inter-satellite link is prolonged, and the distribution of the carrying data flow A hybrid routing method that integrates dynamic and static features such as imbalance. The present invention is realized through the following technical solutions: the static road sends the motion trajectory information of the satellite-based nodes to the ground operation and maintenance management and control center, initiates a routing request, and obtains the motion trajectory information of the satellite-based nodes; the operation and maintenance management and control center adopts a time-virtualized routing algorithm, Carry out time slice division, virtual topology map construction and original routing table creation; satellite-based nodes respond to routing requests, and after accepting tasks, construct task routes according to static routing tables, obtain on-board load tasks, and judge whether sending data packets is successful. If it fails, the DSR routing algorithm is used to dynamically reconstruct the route. If the data packet is sent successfully, the data packet transmission is completed.

Description

Technical field [0001] The present invention relates to the field of satellite measuring and control network communication protocol, and in particular, there is a dynamic static mixing routing method that can be used in data traffic transmission of high low-track satellite nodes in the heaven and earth integrated network. Background technique [0002] Due to the limitations of the ground network and the traditional network unable to achieve a true global coverage, combined with the delay small and satellite networks of the terrestrial network, the coverage of the ground network and the space network combined with the space network are integrated. The empty-air integrated network is interconnected by physical transmission technologies such as wireless network, and the main node and link are relatively fixed. The transmission is short when the transmission is low, and the change in link space is small. [0003] The end-to-end data transmission of the empty day needs to span multipl...

AI Technical Summary

Problems solved by technology

Multi-path routing can make full use of network bandwidth and improve network throughput, but multi-path routing will cause out-of-order arrival of TCP connection data

In addition, the star-to-ground switching in the low-orbit satellite network will also cause data packet disorder

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