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Network maintenance method for space-sky information network

An aerospace information network and network maintenance technology, which is applied in the field of network maintenance for aerospace information networks, and can solve problems affecting the speed of path reconstruction

Inactive Publication Date: 2014-08-06
HARBIN INST OF TECH SHENZHEN GRADUATE SCHOOL
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  • Abstract
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Problems solved by technology

This method ensures the optimality of routing, but collecting state information of the entire network will affect the speed of path reconstruction

Method used

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  • Network maintenance method for space-sky information network
  • Network maintenance method for space-sky information network
  • Network maintenance method for space-sky information network

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Embodiment Construction

[0051] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.

[0052] The invention designs a network maintenance method oriented to the space and space information network aiming at the sudden situations in network operation such as network node damage and node congestion. By designing the network state information base and controlling the information structure and interaction process, a more reliable path is selected for data transmission, so as to realize network maintenance. When the normal node is damaged, the present invention adopts the combination of local route reconstruction and global route reconstruction to ensure the continuity of data transmission, and quickly restores to the optimal path; when the management satellite is damaged, multiple satellites in the middle orbit satellite layer Jointly undertake the task of managing satellites to ensure reliable transmission of control information; wh...

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Abstract

The invention relates to the field of space-sky information networks, in particular to a network maintenance method for a space-sky information network. When a common node is damaged, local routing reconstruction and overall routing reconstruction are combined to guarantee the continuity of data transmission, and the optimal path is quickly restored; when a management satellite is damaged, a plurality of satellites in a medium-earth orbit satellite layer undertake tasks of the management satellite to guarantee reliable transmission of control information; when node congestion possibly happens, an additional cost is set to prevent a congested node from forwarding more data, and the transmission path of original services is kept through forced routing to avoid node congestion and frequent change of the service path. By means of the method, certain data transmission capacity of the network can be kept in an emergency, and the reliability and damage resistance of the space-sky information network are improved.

Description

technical field [0001] The invention relates to the field of aerospace information network, in particular to a network maintenance method for the aerospace information network. Background technique [0002] The aerospace information network is a comprehensive communication network that includes various satellites, near-space platforms, various aircraft, and ground communication stations. It can be used as an emergency communication system in disaster and war environments, or as The expansion of traditional ground communication network and satellite communication network has broad application prospects. [0003] The backbone nodes of the aerospace information network are composed of various satellites and near-space platforms, and data are transmitted through multi-hop wireless channels. Compared with wired channels, wireless channels are open, information is easily intercepted and interfered, and faces greater security threats. Compared with terrestrial network facilities,...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L12/703H04L12/24H04L45/28
Inventor 张钦宇吴伟强陈培培罗冰妮王玉鹏张曼曼
Owner HARBIN INST OF TECH SHENZHEN GRADUATE SCHOOL
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