User access method and device for minimizing transmission delay in space-air-ground convergence network

A converged network and transmission delay technology, applied in the field of air-space-ground converged network, can solve problems such as communication link interruption
CN113395101AActive Publication Date: 2021-09-14HARBIN INST OF TECH
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Patent Information

Authority / Receiving Office
CN ยท China
Patent Type
Applications(China)
Current Assignee / Owner
HARBIN INST OF TECH
Publication Date
2021-09-14

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Abstract

The invention discloses a user access method and device for minimizing transmission delay in a space-air-ground convergence network, and relates to the technical field of space-air-ground convergence networks. At present, a space-air-ground fusion network is adopted to assist data transmission process summarization in remote areas, and the link state is always dynamically changed, so that the reliability of a communication link becomes poor. According to the method, signal receiving forms of aircraft and satellite receiving ends are obtained respectively, the receiving signal-to-noise ratio of the aircraft end is calculated, then the outage probability of a ground user-aircraft and satellite communication link is obtained, then the average sending frequency of user-aircraft and satellite data packets is calculated, data transmission time delay is obtained, and when a user faces various air platforms, a user access method with the purpose of minimizing transmission delay is planned, an optimization problem is decomposed into some independent sub-problems, and a user access result is obtained according to a heuristic user access algorithm provided by the method. The method can be widely applied to the field of space-air-ground fusion networks.
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Description

technical field

[0001] The present invention relates to the technical field of space-space-ground fusion network, in particular to a user access method for minimizing transmission time delay in space-space-ground fusion network. Background technique

[0002] The current mobile communication has developed to the fifth generation, and the effectiveness and reliability of the communication system have reached an unprecedented new stage. For commercial reasons, mobile network operators tend to build traditional cellular base stations in densely populated areas. At present, the coverage rate of terrestrial broadband wireless signals is only 10%, and data transmission in remote areas is still relatively difficult, and there is still a long way to go to achieve the goal of seamless communication coverage.

[0003] The air-space-ground fusion network greatly expands the communication coverage of the traditional terrestrial cellular network due to the introduction of satellites, air...

Claims

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