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Satellite network route establishing method based on reliability assurance

A satellite network and construction method technology, applied in the field of communication, can solve problems such as packet transmission loss, and achieve the effects of reduced routing redundancy, low delay, and high reliability

Active Publication Date: 2012-06-13
XIDIAN UNIV
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Problems solved by technology

[0006] The purpose of the present invention is to overcome the deficiencies in the prior art, and propose a method for constructing satellite network routing based on reliability guarantee, which solves the problem that packet transmission may be lost in the prior art by selecting backup nodes for the nodes of the main path of the satellite network , so as to improve the success rate of packet transmission

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  • Satellite network route establishing method based on reliability assurance
  • Satellite network route establishing method based on reliability assurance
  • Satellite network route establishing method based on reliability assurance

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Embodiment Construction

[0025] The present invention will be further described below in conjunction with the accompanying drawings.

[0026] Refer to attached figure 1 , the concrete steps of the present invention are as follows:

[0027] Step 1, build the main path

[0028] The main path is constructed by using the maximum throughput routing method RADSN (Routing Algorithm for Deep Space Communication Network) of the deep space communication network, and the nodes on the main path except the source node and the destination node are the main nodes.

[0029] The specific steps of the RADSN routing method are as follows: first, all paths that can communicate from the source node to the destination node are used as available paths; secondly, all available paths are classified into one-hop, two-hop, and multi-hop paths according to the number of hops, and classified Calculate the transmission time period of the link and the throughput of the path within a change cycle of each path, and finally select t...

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Abstract

The invention discloses a satellite network route establishing method based on reliability assurance. The method comprises the following steps of: establishing a primary path by a maximum throughput routing method RADSN of a deep-space communication network; and determining primary nodes; respectively establishing a standby node set for each primary node, and selecting the standby nodes, meeting the requirements, from the standby node set; preferentially executing message transmission of the primary, after finishing the message transmission, transmitting the message, which is same as that transmitted by the primary node, by the standby nodes, until a destination node receives the message. For solving the problem of message loss caused by sudden failure of nodes of the satellite network in the prior art, the invention provides the satellite network route establishing method based on reliability assurance, the reliability of transmission of the satellite network is improved by a method of transmitting the message, which is same as that transmitted by the primary node, by the standby nodes; and simultaneously, a plurality of paths jointly formed by the standby nodes and the primary node are used for multiple transmission of standby messages, miscellaneous property of routing is minimized, and load on the satellite network is reduced.

Description

technical field [0001] The invention belongs to the technical field of communication, and further relates to a route construction method based on reliability guarantee in a satellite network. The invention can be used to solve the problem of excessive retransmission delay or information loss caused by unstable network nodes in satellite communication. Background technique [0002] Because satellite communication has the characteristics of wide coverage, long communication distance, no geographical restrictions, good transmission quality, and flexible networking, it has important practical value in information transmission. But at the same time, there are also problems in the satellite communication network, such as prolonged link propagation time, high channel bit error rate, sparse node distribution, intermittent network connectivity, and often non-existent end-to-end paths. [0003] Aiming at the problem that the end-to-end path often does not exist, the International Spa...

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Application Information

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IPC IPC(8): H04W24/04H04W40/02H04W84/06
Inventor 李红艳刘芳萌李建东赵林靖马英红杨春刚
Owner XIDIAN UNIV
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