文章基本信息

标题：Connected model for opportunistic sensor network based on Katz centrality
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作者：Shu, Jian ; Xu, Lei ; Jiang, Shandong 等
期刊名称：Computer Science and Information Systems
印刷版ISSN：1820-0214
电子版ISSN：2406-1018
出版年度：2017
卷号：14
期号：3
页码：735-750
出版社：ComSIS Consortium
摘要：Connectivity is an important indicator of network performance. But the opportunistic sensor networks (OSNs) have temporal evolution characteristics, which are hard to modelled with traditional graphs. After analyzing the characteristics of OSNs, this paper constructs OSNs connectivity model based on time graph theory. The overall connectivity degree of the network is defined, and is used to estimate actual network connectivity. We also propose a computing method that uses the adjacency matrix of each snapshot. The simulation results show that network connectivity degree can reflect the overall connectivity of OSNs, which provide a basis for improving the OSNs performance.
关键词：opportunistic sensor networks; connectivity; network connectivity degree; time graph