Data transmission method, satellite network system, device and medium via satellite network
A data transmission method and satellite network technology, applied in the transmission system, radio transmission system, network traffic/resource management, etc., can solve the problems of large load changes of communication satellites, low throughput of communication satellites, and long transmission distances, etc., to achieve The effect of distributed computing, load balancing, and high traffic balancing capabilities
Active Publication Date: 2021-12-07
GUANGZHOU UNIVERSITY +1
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Problems solved by technology
Compared with base stations that cover densely populated areas on the ground, satellite network communication has the advantages of wide coverage and long transmission distance, allowing remote mountainous areas, the sky, and oceans to access the Internet. The disadvantage is that the number of satellites is small, and in the face of huge data volumes, It is easy to cause large changes in the load of each communication satellite, the throughput of communication satellites is low, and the insufficiency of the existing communication satellite transmission technology in determining the transmission path leads to a high delay
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[0026] In this embodiment, an application environment of the method of transmitting data through a satellite network is as follows figure 1 As shown, the ground source node needs to send a data packet p in the data stream c to the ground destination node, and the ground source node sends the data packet p to the communication satellite directly connected to the ground source node in the satellite network, that is, through the satellite The first hop in the process of transmitting data over the network. Starting from the first hop, the satellite network performs one-hop or multi-hop (hop) forwarding. Each forwarding involves two communication satellites. The satellite that sends the data packet is called the previous hop in the forwarding, and the data packet is received. The satellite is called the next hop in this forwarding. After multiple times of forwarding, the data packet p is sent to the last hop in the satellite network data transmission process, and the data packet p...
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The invention discloses a data transmission method through a satellite network, a satellite network system, a device and a storage medium. The data transmission method performs at least one-hop forwarding for a communication satellite located in a restricted area so as to send a ground source node to the satellite network. The data packet is transmitted to the ground destination node. In one forwarding, the communication satellite that currently sends the data packet is used as the previous hop, and the previous hop traverses the communication satellite corresponding to the maximum backlog measurement difference value of adjacent communication satellites in the restricted area. is the next hop, wherein the backlog metric used to determine the backlog metric difference is determined by the number of data packets buffered by the communication satellite and the distance between the communication satellite and the last hop. The invention can balance the load of each communication network, realize higher flow balancing ability, data transmission rate and throughput, and can improve the problem of high delay. The invention is widely used in the technical field of satellite communication.
Description
technical field [0001] The invention relates to the technical field of satellite communication, in particular to a data transmission method through a satellite network, a satellite network system, a device and a storage medium. Background technique [0002] With the coming 6G era, space-ground integrated network will become a future trend, and satellite communication will play a vital role in it. Satellite network is also an important part of 6G network. Compared with base stations that cover densely populated areas on the ground, satellite network communication has the advantages of wide coverage and long transmission distance, allowing remote mountainous areas, the sky, and oceans to access the Internet. The disadvantage is that the number of satellites is small, and in the face of huge data volumes, It is easy to cause a large change in the load of each communication satellite, the throughput of the communication satellite is low, and the deficiencies of the existing com...
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IPC IPC(8): H04B7/185H04W28/08
CPCH04B7/18513H04W28/08H04W28/082
Inventor 邓霞曾首元王艳
Owner GUANGZHOU UNIVERSITY