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A Simulation Method of Satellite Link Intermittence and Delay

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: 2021-05-18
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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  • A Simulation Method of Satellite Link Intermittence and Delay
  • A Simulation Method of Satellite Link Intermittence and Delay
  • A Simulation Method of Satellite Link Intermittence and Delay

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Embodiment Construction

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

[0037] The flow chart of the method of the present invention is as follows figure 1 As shown, the technical solution 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 scenario on STK, set the constellation structure, satellite orbit parameters, and ground station locations, obtain the satellite network topology, link duration, and link length after modeling and analysis, and form an XML configuration file. Transfer to the control node and computing node of OpenStack respectively;

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

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Abstract

The invention discloses a satellite link intermittent and delay simulation method, relates to the technical field of network simulation, and effectively solves the problem of satellite link intermittent and delay simulation in satellite network simulation. The method includes the following steps: integrating OpenStack Build a satellite network simulation platform with STK; build a satellite communication network in STK, and form an XML configuration file for the satellite network topology, link continuous communication time, and link length; load the satellite network topology configuration file in the control node, and automatically deploy virtual satellites The network simulates multi-granularity satellite nodes and initializes the satellite link status according to the satellite orbit height; loads the link continuous communication time and link length configuration files in the calculation node, detects and dynamically switches the satellite link status and delay in real time. The invention provides a satellite link intermittent and delay simulation method, which can be used for scientific research 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 field of military and mobile communication. The periodic movement of satellites in the orbital plane causes the intermittency of satellite links. Satellite links can be divided into inter-satellite links and satellite-to-ground links according to their spatial distribution. Satellite-to-ground links refer to the links between satellites and ground stations. The inter-satellite link can be further 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. Int...

Claims

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Application Information

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Patent Type & Authority Patents(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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