Cascading failure in the wireless sensor scale-free networks  

作　　者：刘浩然 董明如 尹荣荣 韩丽 

机构地区：[1]School of Information Science and Engineering, Yanshan University [2]Key Laboratory of Special Optical Fiber and Optical Fiber Sensing, Yanshan University [3]School of Electrical Engineering, Yanshan University

出　　处：《Chinese Physics B》2015年第5期293-299,共7页中国物理B（英文版）

基　　金：supported by the Natural Science Foundation of Hebei Province,China(Grant No.F2014203239);the Autonomous Research Fund of Young Teacher in Yanshan University(Grant No.14LGB017);Yanshan University Doctoral Foundation,China(Grant No.B867)

摘　　要：In the practical wireless sensor networks （WSNs）, the cascading failure caused by a failure node has serious impact on the network performance. In this paper, we deeply research the cascading failure of scale-free topology in WSNs. Firstly, a cascading failure model for scale-free topology in WSNs is studied. Through analyzing the influence of the node load on cascading failure, the critical load triggering large-scale cascading failure is obtained. Then based on the critical load, a control method for cascading failure is presented. In addition, the simulation experiments are performed to validate the effectiveness of the control method. The results show that the control method can effectively prevent cascading failure.In the practical wireless sensor networks （WSNs）, the cascading failure caused by a failure node has serious impact on the network performance. In this paper, we deeply research the cascading failure of scale-free topology in WSNs. Firstly, a cascading failure model for scale-free topology in WSNs is studied. Through analyzing the influence of the node load on cascading failure, the critical load triggering large-scale cascading failure is obtained. Then based on the critical load, a control method for cascading failure is presented. In addition, the simulation experiments are performed to validate the effectiveness of the control method. The results show that the control method can effectively prevent cascading failure.

关 键 词：wireless sensor network scale-free topology cascading failure 

分 类 号：TP212.9[自动化与计算机技术—检测技术与自动化装置] TN929.5[自动化与计算机技术—控制科学与工程]