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mpr backup method based on link lifetime

A time-to-live and link technology, applied in digital transmission systems, data exchange networks, electrical components, etc., can solve problems such as lowering the operating efficiency of routing protocols and broken topological links, so as to improve resource utilization and operating efficiency, and ensure correctly formed effect

Active Publication Date: 2021-03-23
UNIV OF ELECTRONICS SCI & TECH OF CHINA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0006] Aiming at the above-mentioned deficiencies in the prior art, the MPR backup method based on the link lifetime provided by the present invention solves the problem that fast-changing topology link breaks reduce the operating efficiency of the entire routing protocol

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Embodiment Construction

[0023] The specific embodiments of the present invention are described below so that those skilled in the art can understand the present invention, but it should be clear that the present invention is not limited to the scope of the specific embodiments. For those of ordinary skill in the art, as long as various changes Within the spirit and scope of the present invention defined and determined by the appended claims, these changes are obvious, and all inventions and creations using the concept of the present invention are included in the protection list.

[0024] In order to avoid ambiguity in the description, the 1-hop neighbor node and the 2-hop neighbor node are explained here: all the 1-hop neighbor nodes and 2-hop neighbor nodes in this scheme refer to the 1-hop neighbor node and the 2-hop neighbor node of the satellite node. Hop neighbor nodes.

[0025] refer to figure 1 , figure 1 Shows a flow chart of the MPR backup method based on the link lifetime; as figure 1 As...

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Abstract

The invention discloses an MPR backup method based on the link survival time, which comprises a satellite node periodically broadcasting a Hello group message and receiving the Hello group message periodically broadcasted from a neighbor node; The Hello group message generates a neighbor table, and then predicts the link survival time between each satellite node and its neighbor nodes in the satellite self-organizing network; selects the MPR node and the candidate MPR node of the satellite node to join the MPR set. After this solution introduces the candidate MPR node of the satellite node, when the failure of the MPR node occurs, its backup node is directly selected to forward the TC control message, without waiting for the Hello message to interact again, to re-form the neighbor table, and then re-select the MPR node, quickly The restoration of MPR nodes improves resource utilization and operating efficiency, and ensures the correct formation of the entire network topology.

Description

technical field [0001] The invention relates to a satellite self-organizing network, in particular to an MPR node backup method of an OLSR routing protocol in the satellite self-organizing network. Background technique [0002] In the satellite self-organizing network, each satellite node plays two roles. One is the terminal node for sending and receiving data, and the other is the routing node for forwarding data. After research, a large number of satellite ad hoc network routing protocol schemes have been proposed one after another. According to different standards, satellite ad hoc network routing protocols have different classification methods. Aiming at the satellite self-organizing network routing problem, according to the different routing establishment methods, it can be divided into post-response routing protocols and pre-response routing protocols. [0003] Responsive routing protocols, also known as on-demand routing protocols, do not need to maintain network to...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L12/751H04L12/703H04L12/721H04B7/185H04L45/02H04L45/28
CPCH04L45/02H04L45/026H04L45/28H04L45/14H04B7/18521
Inventor 张艺章小宁马世忠曾志豪黄镐
Owner UNIV OF ELECTRONICS SCI & TECH OF CHINA
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