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A Distributed Routing Method for Airspace Network Based on QoS Guarantee

A distributed and networked technology, applied in advanced technology, active electrical relay system, reducing energy consumption, etc., to achieve the effects of improving efficiency, avoiding transmission waste, and long response time

Active Publication Date: 2022-05-17
NO 20 RES INST OF CHINA ELECTRONICS TECH GRP
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

At present, there is no satellite group completely composed of HEO satellites in orbit at home and abroad, but due to the inherent advantages of elliptical orbits, many satellite groups contain HEO satellites

Method used

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  • A Distributed Routing Method for Airspace Network Based on QoS Guarantee
  • A Distributed Routing Method for Airspace Network Based on QoS Guarantee

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Embodiment Construction

[0029] The present invention will be further described below in conjunction with the accompanying drawings and embodiments, and the present invention includes but not limited to the following embodiments.

[0030] The present invention is a distributed routing method capable of guaranteeing the QoS requirements of various priority services, comprising the following steps:

[0031] Step 1. Construct a GEO / HEO multi-layer satellite network. Based on the orbit characteristics of large elliptical satellites, by setting the parameters of large elliptical orbit constellations reasonably, a wider range of coverage around the target area can be achieved. In order to achieve long-term communication and early warning in the target area. The large elliptical satellite constellation is divided into a series of time slices according to the cycle, and the connectivity relationship and propagation delay between large elliptical satellites in each time slice can be obtained. Large elliptical...

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Abstract

The invention provides a Qos-guaranteed distributed routing method for space and space networks, which divides large elliptical orbit satellites into a series of time slices according to the cycle, and obtains the connectivity relationship and propagation time between large elliptical satellites in each time slice Delay; large elliptical orbit satellites grasp the visibility and propagation delay of all air nodes in the whole network to it; large elliptical orbit satellites establish corresponding network topology maps for each type of priority service; air nodes obtain network topology of various priority services Figure, calculate the most suitable path, when a certain type of priority business arrives, the large elliptical orbit satellite uses the network topology map corresponding to this type of priority business according to the priority of the business, and uses the Dijkstra algorithm to Calculate the next hop node. The invention can effectively guarantee the Qos requirements of various priority services, and can be used in the technical field of aerospace integrated network.

Description

technical field [0001] The present invention relates to the field of aerospace information network technology, in particular to a routing method capable of guaranteeing the QoS requirements of various priority services under the constellation system of large elliptical orbit satellites and high orbit satellites with interstellar links, and is used to realize space Continuous and reliable communication over a large area in the sky information network. Background technique [0002] The space network is an intelligent information system organically composed of various types of satellite systems operating in different orbits, near space platforms, ground stations and other backbone nodes, as well as air and ground users. It is an integrated communication system integrating space, space and ground. The aerospace network has the characteristics of dynamic topology changes, limited resources, long link delay, and business dynamics, which make the service quality assurance mechanism...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L45/02H04L45/30H04L45/44H04B7/185H04B7/19
CPCH04L45/02H04L45/30H04L45/44H04B7/18558H04B7/19Y02D30/70
Inventor 田万勇迟凯宋婧黎亚
Owner NO 20 RES INST OF CHINA ELECTRONICS TECH GRP
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