文献类型：期刊文献

英文题名：Copula-based reliability modelling of wireless sensor networks with dependent failures

作者：Zhao, M. Yang, J. F. Zhao, B. Wu, Z.

第一作者：Zhao, M.

通信作者：Yang, JF[1]

机构：[1]Univ Gavle, Dept Ind Engn & Management, Fac Engn & Sustainable Dev, S-80176 Gavle, Sweden;[2]Guizhou Inst Technol, Dept Data Sci, Sch Data Sci, Guiyang 550003, Guizhou, Peoples R China;[3]Guizhou Univ, Reliabil Ctr Guizhou Prov, Dept Math, Guiyang 550025, Guizhou, Peoples R China

第一机构：Univ Gavle, Dept Ind Engn & Management, Fac Engn & Sustainable Dev, S-80176 Gavle, Sweden

通信机构：corresponding author), Guizhou Inst Technol, Dept Data Sci, Sch Data Sci, Guiyang 550003, Guizhou, Peoples R China.|贵州理工学院;

年份：2019

卷号：31

期号：2

起止页码：90-98

外文期刊名：INTERNATIONAL JOURNAL OF SENSOR NETWORKS

收录：;Scopus(收录号：2-s2.0-85072250185);WOS:【SCI-EXPANDED(收录号:WOS:000485658600003)】；

基金：This research is supported by Technology Foundation of Guizhou Province (QianKeHeJZi[2015]2064) and Joint Foundation of Guizhou Province (QianKeHeLHZi[2016]7108).

语种：英文

外文关键词：WSN; wireless sensor network; reliability model; control system; subsystem; failure time; Dependence; Joint distribution; Copula function; Star-based WSN

摘要：Wireless sensor networks (WSNs) have widely been applied in various industries and business fields covering large geographical regions. It is therefore important to be able to model, assess and predict the reliability of WSNs since the failures can have a great effect on the monitoring or control systems that are normally depending on the WSNs. In this paper, the general WSN reliability models are developed by deleting the independent assumption of component or subsystem failures and are consequently more reasonable to characterise the failure process of WSNs. The methodology in the proposed WSN reliability models is to consider that the failure times of subsystems are dependent variables and their joint distribution is obtained by binding their marginal failure distributions together through a copula function. For specific Frank copula functions, the Star-based WSN reliability models are derived and their properties are also discussed in this paper.