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Method and system for analyzing link utilization ratio of satellite communication network

A satellite communication and network link technology, which is applied in aerospace communication technology and computer fields, can solve the problems that the queuing model cannot describe the parallelism and asynchrony of information services, and cannot accurately analyze the utilization rate of satellite communication network links.

Active Publication Date: 2018-09-28
CHINA UNIV OF GEOSCIENCES (WUHAN)
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Problems solved by technology

[0003] The technical problem to be solved by the present invention is that the queuing model in the prior art cannot describe the characteristics of parallelism and asynchrony of information services in the satellite network, so it is impossible to accurately analyze the link utilization rate of the satellite communication network, and provides a Method and system for link utilization analysis of satellite communication network based on stochastic colored Petri net

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  • Method and system for analyzing link utilization ratio of satellite communication network
  • Method and system for analyzing link utilization ratio of satellite communication network
  • Method and system for analyzing link utilization ratio of satellite communication network

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[0043] In order to have a clearer understanding of the technical features, purposes and effects of the present invention, the specific implementation manners of the present invention will now be described in detail with reference to the accompanying drawings.

[0044] 1. Introduction to Petri net

[0045] The Petri net was first proposed by the German scholar Dr. Carl Adam Petri in his doctoral thesis "Communication with Automata" in 1962. At that time, he used the causal relationship to describe the memory of the parallel system. With the continuous development of Petri net theory, currently widely used in performance analysis, communication protocols and production systems, Petri net has become a powerful tool for describing and researching systems with asynchronous, concurrent, distributed, parallel and non-deterministic characteristics. powerful tool. Stochastic Petri nets are gradually developed by introducing the concept of time into basic Petri nets. Its goal is to int...

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Abstract

The invention discloses a method and a system for analyzing the link utilization ratio of a satellite communication network. The method includes the steps of determining a satellite communication network model that needs to undergo link utilization ratio analysis, establishing a stochastic colored Petri net model corresponding to the satellite communication network, defining types of token in thestochastic colored Petri net model to indicate flow directions of data, limiting flow directions of the different types of token during transition, obtaining parameters involved in the satellite communication network, and calculating the link utilization ratio of the satellite communication network on the basis of the established stochastic colored Petri net model.

Description

technical field [0001] The invention relates to the fields of aerospace communication technology and computer technology, in particular to a method and system for analyzing the link utilization rate of a satellite communication network based on a randomly colored Petri net. Background technique [0002] Due to uncertain factors such as inherent mobility, node variability, and parameter variability of the satellite communication network, the modeling of the satellite network is more complicated. Modeling with general graph theory knowledge is difficult to reflect its above-mentioned characteristics, and cannot clearly describe the satellite network. At present, the performance evaluation of satellite networks at home and abroad mainly adopts queuing theory and Markov process. However, the queuing model cannot describe the characteristics of parallelism and asynchrony of information services in the satellite network, so it cannot accurately analyze the link utilization rate o...

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Application Information

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IPC IPC(8): H04B7/185H04L12/24
CPCH04B7/18519H04L41/145
Inventor 戴光明彭雷王茂才宋志明邓洋
Owner CHINA UNIV OF GEOSCIENCES (WUHAN)
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