文献类型：期刊文献

英文题名：SNIRD: Disclosing Rules of Malware Spread in Heterogeneous Wireless Sensor Networks

作者：Shen, Shigen[1];Zhou, Haiping[1];Feng, Sheng[1];Liu, Jianhua[1];Cao, Qiying[2]

机构：[1]Shaoxing Univ, Dept Comp Sci & Engn, Shaoxing 312000, Peoples R China;[2]Donghua Univ, Coll Comp Sci & Technol, Shanghai 201620, Peoples R China

年份：2019

卷号：7

起止页码：92881

外文期刊名：IEEE ACCESS

收录：SCI-EXPANDED(收录号：WOS:000477864400176)、、EI(收录号：20193207285228)、Scopus(收录号：2-s2.0-85073891300)、WOS

基金：This work was supported in part by the National Natural Science Foundation of China under Grant 61772018 and Grant 61572014, and in part by the Public Welfare Technology Research Project of Zhejiang Province under Grant LGG19F020007.

语种：英文

外文关键词：Heterogeneous wireless sensor networks; malware; epidemic theory; heterogeneity; equilibria; malware spread threshold

外文摘要：Heterogeneous wireless sensor networks (WSNs) are widely deployed, owing to their good capabilities in terms of network stability, dependability, and survivability. However, they are prone to the spread of malware because of the limited computational capabilities of sensor nodes. To suppress the spread of malware, a malware spread model is urgently required to discover the rules of malware spread. In this paper, a heterogeneous susceptible-iNsidious-infectious-recovered-dysfunctional (SNIRD) model was proposed, which not only considers the communication connectivity of heterogeneous sensor nodes but also reflects the characteristics of malware hiding and dysfunctional sensor nodes. Then, the fraction evolution equations of heterogeneous sensor nodes in different states in discrete time were obtained. Furthermore, the existence of equilibria for the heterogeneous SNIRD model was proved, and the malware spread threshold was obtained, which indicates whether malware will spread or fade out. Finally, the heterogeneous SNIRD model was simulated and it was contrasted with the conventional SIS and SIR models to validate its effectiveness. The results construct a theoretical guideline for administrators to suppress the spread of malware in heterogeneous WSNs.