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Construction method of accusation network cascading failure model with hierarchical structure

A failure model and hierarchical structure technology, applied in the direction of data exchange network, digital transmission system, electrical components, etc., can solve the problem of not considering the characteristics of the hierarchical structure, the cascade failure model cannot be directly applied, and it is difficult to effectively analyze the invulnerability of the command network, etc. problems, to achieve the effect of improving the ability to resist cascading failures and enhancing the survivability

Active Publication Date: 2020-09-22
DALIAN UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] In view of the fact that the existing network cascade failure model does not consider the characteristics of the hierarchical structure, it is difficult to effectively analyze the problem of the invulnerability of the accusation network, and the existing cascade failure model cannot be directly applied to the accusation network; therefore, this application proposes a accusation network with a hierarchical structure. A network cascading failure model construction method, which combines the hierarchical structure of the command and control network, and considers the strict affiliation relationship in the command and control network, can more effectively and accurately reflect the internal mechanism and external behavior of the command and control network cascading failure

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  • Construction method of accusation network cascading failure model with hierarchical structure
  • Construction method of accusation network cascading failure model with hierarchical structure
  • Construction method of accusation network cascading failure model with hierarchical structure

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Embodiment 1

[0058] A method for constructing a cascading failure model of an accusation network with a hierarchical structure, the specific steps are as follows:

[0059] S1: Define the initial load and capacity of nodes; the method for defining the initial load of the command and control network based on the hierarchy-degree takes into account the topological structure (node ​​degree) and hierarchical characteristics of the command and control network, and its formula is as follows:

[0060] f i (0)=α×k i λ +(1-α)×(D+1-d i ) γ

[0061] Among them, Fi(0) is the initial load of node vi, ki and di are the degree and command level (organization status) of node vi respectively, and D is the total command level of the command and control network. α, λ and γ are initial load adjustment coefficients, controlling the impact of node degree and organizational status on the initial load of nodes, λ, γ∈[0,∞) and α∈[0,1].

[0062] The capacity of the node is determined according to the ML cascad...

Embodiment 2

[0100] This embodiment is as the supplement of embodiment 1:

[0101] Based on the established command and control network cascading failure model, the optimal model parameters are determined. Specifically: use the control variable method to adjust each parameter in the cascading failure model, and then carry out a deliberate attack on the accusation network. The cascade invulnerability index measures the impact of model parameter values ​​on the command and control network, and then determines the optimal parameters of the model, making the command and control network the strongest anti-cascade failure capability;

[0102] Figure 6 is the simulation diagram of the effect of the initial load adjustment coefficient α on the network cascade invulnerability. In order to analyze the impact of the coefficient α on the network cascade invulnerability when the accusation network is deliberately attacked, the node survival rate G and the network carrying capacity CF are used as the...

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Abstract

The invention relates to an establishment method of a command network cascading failure model having a hierarchical structure. The method concretely comprises the following steps: S1, defining the initial load and capacity of nodes in a command network; S2, using a command network failure node load redistribution method to update the loads of all the intact nodes in the network for once; S3, evaluating the cascading anti-destruction performance of the command network; S4, establishing the command network cascading failure model; S5, adjusting parameters in the model according to the established cascading failure model, using the provided cascading anti-destruction performance evaluation to estimate the anti-destruction performance of the command network, and enabling the cascading anti-destruction performance of the command network to be optimal. The method combines the hierarchical structure of the command network and takes the strict affiliation in the command network into account, thus being capable of better reflecting the internal mechanism and extrinsic behavior of command network cascading failure effectively and accurately.

Description

technical field [0001] The invention belongs to the field of military command and control, in particular to a method for constructing a command and control network cascading failure model with a hierarchical structure. Background technique [0002] With the continuous evolution of information warfare, the command and control network, as the nerve center of information warfare system and system confrontation, has not only become the key to our victory in the war, but also the primary target of the enemy's attack. In order to meet the needs of information-based operations, the command and control network connects all types of command and control nodes at all levels into a complex network that is vertically integrated and horizontally interconnected. The accusation network shows the characteristics of scale-free structure, hierarchical load distribution, and large difference in node importance. The complexity of the accusation network also increases the vulnerability of the net...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L12/24
CPCH04L41/12H04L41/142H04L41/145
Inventor 陈波张多平王运明
Owner DALIAN UNIV
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