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A topology reconfiguration method for fast networking of inter-satellite laser communication

A topology reconstruction and laser communication technology, applied in the field of inter-satellite optical communication, can solve the problems of inability to meet the rapid response of multiple temporary services, waste of energy and consumption of extra spectral resources, etc.

Active Publication Date: 2021-02-26
BEIJING UNIV OF POSTS & TELECOMM +1
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Problems solved by technology

Traditional relatively fixed and redundant inter-satellite links can reduce link establishment and recovery time, but also cause additional waste of spectral resources and energy consumption, and cannot meet the rapid response to multiple temporary services in emergency situations

Method used

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  • A topology reconfiguration method for fast networking of inter-satellite laser communication
  • A topology reconfiguration method for fast networking of inter-satellite laser communication

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Embodiment Construction

[0023] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. The topology reconstruction method for fast networking of inter-satellite laser communication described in the present invention can be deployed but not limited to LEO / MEO double-layer satellite network, and is applicable to all satellite networking scenarios with the characteristics of fast switching of network topology states. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0024] Such as figure 1 As shown, an example of the present invention provides a schematic diagram of a scene of LEO / MEO two-layer sa...

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Abstract

The present invention provides a fast topology generation method for LEO / MEO inter-satellite optical links. The rules are iteratively deleted according to the bandwidth utilization rate; the inter-satellite optical link business bearer is redistributed according to the forwarding hops and connectivity constraints; the inter-satellite optical link closes the redundant link. In the case of sudden temporary business scenarios, using this invention can find the minimum set of inter-satellite laser links that meet business requirements while maintaining the basic QoS requirements, improve the speed and efficiency of inter-satellite network deployment, and realize inter-satellite laser communication Fast and flexible networking.

Description

technical field [0001] The invention relates to the field of inter-satellite optical communication, in particular to a topology reconstruction method for rapid networking in a Low / Middle Earth Orbit (LEO / MEO) double-layer satellite network. Background technique [0002] As an important part of the air-space-ground integrated network, the satellite network has the ability to quickly provide large-area coverage access. With the current development trend of high-bandwidth, wide-coverage, and dense-access networks, it is of great significance to network multiple satellites to provide data communication services. Compared with the single-layer satellite network structure, the establishment of a LEO / MEO double-layer satellite network will have the characteristics of higher spectrum utilization efficiency, invulnerability, lower delay and lower network congestion rate, and is regarded as One of the satellite networking technologies with the most application prospects and practical...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L12/24H04B7/185H04B10/118
CPCH04B7/18519H04B7/18521H04B10/118H04L41/12
Inventor 顾仁涛王海涛邢真战勇杰纪越峰董涛殷杰刘志慧
Owner BEIJING UNIV OF POSTS & TELECOMM
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