Satellite link intermittent and delay simulation method

A satellite link and simulation method technology, applied in the field of network simulation, can solve the problems of large link propagation delay and long transmission distance, etc., achieve rapid configuration and reconstruction, satisfy scientific research, and improve efficiency and accuracy

Active Publication Date: 2018-11-02
JIANGNAN UNIV
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Problems solved by technology

The transmission distance between satellites is long, and the link has a large propagation delay

Method used

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  • Satellite link intermittent and delay simulation method
  • Satellite link intermittent and delay simulation method
  • Satellite link intermittent and delay simulation method

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Embodiment Construction

[0036] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.

[0037] The flow chart of the inventive method is as figure 1 As shown, the technical scheme is as follows:

[0038] S1: Integrate OpenStack and STK to build a satellite network simulation platform, use multi-granularity virtualization technology to simulate virtual satellite nodes, and build virtual satellite links through OpenvSwitch (ovs for short);

[0039] S2: Build a satellite network scene on STK, set the constellation structure, satellite orbit parameters, and ground station location, obtain the satellite network topology, link continuous communication time, and link length after modeling and analysis, form an XML configuration file, and upload the configuration file They are transmitted to the control node and computing node of OpenStack respectively;

[0040] S3: According to the satellite network topology built in STK, the virtual s...

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Abstract

The invention discloses a satellite link intermittent and delay simulation method, which relates to the technical field of network simulation and effectively solves the problem of intermittent and delay simulation of satellite links in satellite network simulation. The method includes the following steps: integrating OpenStack and an STK to construct a satellite network simulation platform; constructing a satellite communication network in the STK, and enabling the satellite network topology, the continuous communication time of the link and the link length to form an XML configuration file; loading a satellite network topology configuration file in a control node, automatically deploying a virtual satellite network, simulating a multi-granularity satellite node according to the height ofa satellite orbit, and initializing the satellite link state; and loading the configuration file of the continuous communication time of the link and the link length in a computing node, and real-timely detecting and dynamically switching the satellite link state and delay. The invention provides the satellite link intermittent and delay simulation method, which can be used for scientific researches of different satellite network scenarios.

Description

technical field [0001] The invention relates to the technical field of network simulation, in particular to a satellite link intermittent and delay simulation method. Background technique [0002] Satellite network occupies an important position in global data communication, handles a large number of data transmission services, and has been widely used in the military field and mobile communication field. The periodic movement of satellites in the orbital plane causes the intermittent nature of satellite links. Satellite links can be divided into inter-satellite links and satellite-ground links according to their spatial distribution. Satellite-ground links refer to the links between satellites and ground stations. The inter-satellite link can be divided into the inter-satellite link of the same orbital plane and the inter-satellite link of the adjacent orbital plane. The transmission distance between satellites is long, and the link has a large propagation delay. Satellit...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L12/24H04B7/185
CPCH04B7/18519H04L41/14
Inventor 刘渊张浩李剑锋毕小红邱常伶
Owner JIANGNAN UNIV
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