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Multi-node routing path switching method and related equipment

A path switching and multipath technology, applied in electrical components, wireless communications, etc., to solve problems such as link interruption, adaptive adjustment, and network performance degradation

Inactive Publication Date: 2020-06-30
航天行云科技有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] However, the above methods cannot perform adaptive adjustments in real time according to problems in the network, resulting in link interruption and network performance degradation

Method used

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  • Multi-node routing path switching method and related equipment
  • Multi-node routing path switching method and related equipment
  • Multi-node routing path switching method and related equipment

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Embodiment Construction

[0026] It should be understood that the specific embodiments described here are only used to explain the application, not to limit the application. The terms "first", "second" and the like in the description and claims of the present application and the above drawings are used to distinguish similar objects, and not necessarily used to describe a specific sequence or sequence. It is to be understood that the terms so used are interchangeable under appropriate circumstances such that the embodiments described herein can be practiced in sequences other than those illustrated or described herein. Furthermore, the terms "comprising" and "having", as well as any variations thereof, are intended to cover a non-exclusive inclusion, for example, a process, method, system, product or device comprising a series of steps or modules need not be limited to the expressly listed Those steps or modules, but may include other steps or modules that are not clearly listed or inherent to these pr...

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Abstract

The invention discloses a multi-node routing path switching method and related equipment. The method comprises the steps that a source node floods out of a mobile agent, a relay node forwards the mobile agent, a destination node replies the mobile agent, and the number of replies is filled in a path number domain; the relay node reads the value of the path number domain in the mobile agent; the hop count carried by the mobile agent is recorded into a hop count domain, corresponding to the path number, of the routing table; the mobile agent is forwarded to a source node, the source node updatesrouting table entries reaching a destination node to establish multiple paths, in the path establishment process, the source node calculates to obtain end-to-end time delay estimation values of the first path and the second path, a Q learning algorithm is utilized to update a Q value, and the lifetime of the path is reset. And the source node evaluates the running state of the network according to the updated Q value, if the change trend of the network develops towards a stable direction, the path lifetime is prolonged, and otherwise, the path lifetime is shortened. Self-adaptive adjustment is carried out in real time according to problems occurring in the network, so that the possibility of routing interruption is reduced, and the performance of the network is improved.

Description

technical field [0001] The present invention relates to the technical field of wireless communication, in particular to a multi-node routing path switching method and related equipment. Background technique [0002] Interstellar link (ISL) is widely used in low-orbit satellite communication systems. As satellites continue to move along their respective orbits, the topology of the entire satellite network will change rapidly and regularly. Correspondingly, the routing algorithm also needs to adapt to It is dynamically updated when the topology changes. However, low-orbit satellite routing faces two main problems: stable routing under dynamic conditions and high routing overhead. [0003] Although the topological changes of the low-orbit satellite network are regular and predictable, the dynamic source routing protocol (Dynamic Source Routing, DSR) of the low-orbit satellite (LEO) network, which introduces the idea of ​​logical location, can shield satellite mobility from aff...

Claims

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Application Information

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IPC IPC(8): H04W40/02H04W40/12H04W40/22H04W40/36
CPCH04W40/12H04W40/22H04W40/023H04W40/36
Inventor 双炜
Owner 航天行云科技有限公司
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