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Routing method and device based on satellite network

A satellite network and routing technology, applied in the field of satellite communication network, can solve problems such as data packets cannot be forwarded normally, packet loss, failure of satellite nodes or inter-satellite links, etc.

Inactive Publication Date: 2015-04-29
BEIJING UNIV OF POSTS & TELECOMM
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Problems solved by technology

[0004] Due to the failure of satellite nodes or inter-satellite links, if the next hop nodes in the main direction and the alternate direction between the current node and the destination node fail, it may cause a data packet transmission loop. When the packet exceeds the life cycle, it will cause packet loss, making the data packet unable to be forwarded normally

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  • Routing method and device based on satellite network
  • Routing method and device based on satellite network
  • Routing method and device based on satellite network

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Embodiment Construction

[0064] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the drawings in the embodiments of the present invention.

[0065] figure 1 For the flow chart of the satellite network-based routing method in the embodiment of the present invention, refer to figure 1 As shown, the method includes:

[0066] S101: The current node determines the main direction between the current node and the destination node according to the logical address relationship between itself and the destination node;

[0067] Specifically, the current node first determines the shortest path between the current node and the destination node according to the logical address relationship between itself and the destination node, and then determines the direction from the current node to the next hop node in the shortest path as the distance between the current node and the destination node. main direction between. by figur...

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Abstract

The embodiment of the invention discloses a routing method and device based on a satellite network. The method comprises the following steps: determining a main direction between a current node and a destination node by the current node according to a logic address relationship between the current node and the destination node; determining a next hop node of the current node on a data packet transmission path by the current node according to the main direction and a preset detection strategy and sending the data packet to the next hop node.

Description

technical field [0001] The invention relates to satellite communication network technology, in particular to a satellite network-based routing method and device. Background technique [0002] At present, the routing algorithm of the satellite communication network widely uses the Datagram Routing Algorithm (DRA, Datagram Routing Algorithm). The DRA routing algorithm simulates the satellite communication network as a network composed of virtual nodes. Each virtual node corresponds to a fixed geographical coordinate, and is mapped to the real satellite according to the distance relationship between the coordinate and the physical position of the real satellite. The DRA routing algorithm calculates the path for the received data packet in the logical plane composed of virtual nodes. [0003] The DRA routing algorithm includes a direction prediction stage and a direction enhancement stage. In the direction prediction stage, the DRA routing algorithm first calculates the minimu...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W40/02
CPCH04W40/02Y02D30/70
Inventor 李昕韩江雪齐维孔李明衣龙腾陈山枝刘子鸾金晶王莹汪伟师玉龙肖佳李可李春秀张宏王寅庆涂小刚靳赫
Owner BEIJING UNIV OF POSTS & TELECOMM
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