A Hybrid Routing Method for Sky-Ground Integration

Abstract

The invention provides a space-ground integrated hybrid routing method, including calculating the link distance between satellites in the orbital plane and based on the time-varying link distance between orbital satellites, establishing a time-varying two-way Manhattan satellite network model; The queue delay between the satellite and the neighbor satellite node and the queue delay between the satellite-ground link with the ground node; calculate the time interval that does not affect the network routing performance, and predict the link transmission time between the neighbor node and the second nearest neighbor node within the time interval Delay and queue delay; according to the satellite routing algorithm based on predicting the next nearest neighbor, calculate the link delay of satellite network routing; when the source terminal communicates with the destination terminal, based on the minimum mean square error prediction mechanism, predict each link on the ground route The queue delay of the route; under the 5G-satellite integrated architecture, the goal is to minimize the total link delay of the space-ground integrated hybrid route, and select the optimal path for the on-satellite 5G-satellite node and the off-satellite 5G-satellite node , to get the set of integrated hybrid routes of heaven and earth.

Description

technical field [0001] The invention relates to the technical field of space-ground integration, including a hybrid routing method of space-ground integration. Background technique [0002] 5G pursues ubiquitous coverage, ensuring uninterrupted traffic services from dense urban scenes to sparsely populated areas or in between. High-capacity dense cells combined with fiber optic backhaul provide the best performance in the hottest parts of the city. However, as users move away from urban centers, fiber deployment becomes scarce and expensive, so satellite technology will play a major role. In fact, satellite communications are considered the most affordable technology to meet 5G coverage requirements. [0003] To improve efficiency, 5G moves from a fixed solution that can adapt to different service needs to a flexible solution. However, today's 6 GHz wireless backhaul networks consist of fixed topologies designed through spectrum planning. Their ability to handle failure ...

AI Technical Summary

Problems solved by technology

Therefore, they cannot dynamically adapt the network topology to adapt to changes in traffic, cannot automatically respond to link failures, and cannot integrate newly joined nodes in the network, which are essential features in future 5G dense deployments

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