Routing Method for Satellite Networks Based on Merger of Gateway Stations

Abstract

The invention discloses a satellite network route selection method based on the combination of gateway stations, which mainly solves the problem that the existing technology cannot flexibly find the gateway stations that allow data to land as soon as possible, and because the number of gateway stations is too large and the satellite-ground connection relationship is complicated. problem of high computational complexity. The technical solution is: initialize the link cost between network nodes; merge all gateways in the network into a virtual gateway; reserve the minimum distance between the satellite node directly connected with the virtual gateway and the virtual gateway. The link cost and send it to other nodes in the network to update the link cost; the satellite calculates the shortest path in the network including the virtual gateway; the node forwards the data according to the shortest path after receiving the data. The invention can simplify the path calculation of the satellite network, send data to the ground as soon as possible, and can quickly find the shortest path while releasing the resources on the satellite in time, reducing the occupation time of the resources on the satellite, and can be used to quickly find the optimal gateway station .

Description

Technical field [0001] The present invention belongs to the field of satellite mobile communication, and in particular, the present invention relates to a satellite network routing method, which can be used to quickly find the optimal frequency management station to select the path to the path selection of the business as soon as possible. Background technique [0002] Satellite communication has a wide coverage, high communication capacity, good communication stability, facilitating global coverage, and is considered to be one of the most popular hotspot technologies in the future 6G communication age, with broad application prospects. The ground mobile communications has developed rapidly, the technology is mature, but the regional requirements are high, and the deployment base station costs have a large labor force, and it is difficult to achieve the seamless coverage of the network. Therefore, satellite communication mainly involves typical applications such as telematics, mo...

AI Technical Summary

Problems solved by technology

However, since satellites and gateways are peer-to-peer entities, when calculating the routing table, the usual practice is that the satellites should use each gateway as the destination node for calculation, and the business data will be landed at the designated gateway by default, resulting in a large amount of redundancy. At the same time as the calculation, it is not possible to flexibly find a path that allows business data to land as soon as possible, and cannot release resources on the satellite in time; at the same time, due to frequent changes in the link status of the satellite network, long-term forwarding of business data on the satellite will cause packet loss, reducing the reliability

Images