MPR backup method based on link lifetime

A time-to-live and link technology, applied in radio transmission systems, digital transmission systems, 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: 2020-03-31
UNIV OF ELECTRONICS SCI & TECH OF CHINA
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  • 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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  • MPR backup method based on link lifetime
  • MPR backup method based on link lifetime
  • MPR backup method based on link lifetime

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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 link lifetime. The MPR backup method comprises the steps that a satellite node periodically broadcasts a Hello packet message outwards and receives the Hello packet message periodically broadcasted outwards from a neighbor node; a neighbor table is generated according to the Hello grouping messages of the satellite nodes and the neighbor nodesthereof, and then the link survival time between each satellite node and the neighbor node thereof in the satellite self-organizing network is predicted; and MPR nodes and alternative MPR nodes of thesatellite nodes are selected, and the MPR nodes and the alternative MPR nodes are added into the MPR set. According to the scheme, the alternative MPR nodes of the satellite nodes are introduced; when an MPR node failure problem occurs, the backup node is directly selected to forward the TC control message without waiting for the Hello message to interact again, form the neighbor table again, select the MPR node again and repair the MPR node quickly, so that the resource utilization rate and the operation efficiency are improved, and the correct formation of the whole network topology is ensured.

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 Applications(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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