Node Importance Measurement Method in Heterogeneous Information Satellite Network

Jingling Li; Jun Li; Wei Liang; Tao Cui; Yi Zhang

doi:10.11959/j.issn.2096-8930.2022021

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Node Importance Measurement Method in Heterogeneous Information Satellite Network

Special Issue: Satellite Internet Space Payload | 更新时间：2024-06-03

- Node Importance Measurement Method in Heterogeneous Information Satellite Network
- Space-Integrated-Ground Information Networks Vol. 3, Issue 2, Pages: 56-62(2022)
- 作者机构：
- 作者简介：
- 基金信息：
- DOI：10.11959/j.issn.2096-8930.2022021
  CLC： TP927.2
- Published Online：2022-06，
  
  Published：20 June 2022
- 稿件说明：
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Jingling Li, Jun Li, Wei Liang, et al. Node Importance Measurement Method in Heterogeneous Information Satellite Network[J]. Space-integrated-ground information networks, 2022, 3(2): 56-62.
DOI：

Jingling Li, Jun Li, Wei Liang, et al. Node Importance Measurement Method in Heterogeneous Information Satellite Network[J]. Space-integrated-ground information networks, 2022, 3(2): 56-62. DOI： 10.11959/j.issn.2096-8930.2022021.

摘要

卫星网络中不同节点对于网络连通性及吞吐量的影响不同，为了避免卫星网络关键节点失效导致的网络通信失常现象，可通过衡量卫星网络节点重要度提前进行网络规划。针对卫星网络信息异质的特点，定义卫星虚拟节点及虚拟子层，并提出卫星多层异质信息关联网络模型，定义虚拟节点的归一化度数、归一化节点介数及虚拟节点关联因子，并通过所定义参数提出网络节点重要度计算函数，可精准衡量卫星多层异质信息网络中的节点重要度。基于典型实例对网络连通度及吞吐量指标进行分析，结果表明本文所提算法与经典图论算法相比，能够综合考虑数据信息对于网络节点重要度的影响，更精准描述卫星多层异质信息网络的连通度指标。

Abstract

In satellite network

different nodes have different effects on network connectivity and throughput.In order to avoid network communication disturbances caused by the failure of key nodes in the satellite network

network planning can be carried out in advance by measuring the importance of satellite network nodes.According to the characteristics of satellite network information heterogeneity

satellite virtual nodes and virtual sub-layers were defined

and the satellite multi-layer heterogeneous information correlation network model was proposed.The normalized degree

normalized node betweenness and virtual node correlation factor of virtual nodes were defi ned

and the network node importance calculation function was proposed through the defined parameters

which could accurately measured the node importance in the satellite multi-layer heterogeneous information network.Based on typical examples

the network connectivity and throughput indicators were analyzed.The results showed that the proposed algorithm was better than the classical graph theory algorithm

which could comprehensively considered the impact of data information on the importance of network nodes

and more accurately described the connectivity index of satellite multi-layer heterogeneous information networks.

关键词

Keywords

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