Cascading failures in wireless sensor networks with load redistribution of links and nodes
Cascading failures in wireless sensor networks with load redistribution of links and nodes
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DOI：
10.1016/j.adhoc.2019.101900
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发表时间：
2019-10-01
期刊：
影响因子：
4.8
通讯作者：
Yang, Yongsheng
中科院分区：
文献类型：
--
作者：
Fu, Xiuwen;Yao, Haiqing;Yang, Yongsheng
现有的无线传感器网络级联模型不能正确反映网络的流量特性。在这项工作中，我们建立了一个更实用的级联模型的无线传感器网络，网络负载定义根据两个新的流量度量“汇面向节点介数”和“汇面向链路介数”和级联过程是由传感器节点和无线链路的负载重新分配共同推动。此外，根据“空闲容量”原则设计了负载再分配方案。仿真结果表明，网络抗毁性与容忍系数正相关，与指数系数负相关。抵抗故意节点攻击所需的最小成本比面对故意链路攻击所需的成本更昂贵。(C)2019 Elsevier B.V.版权所有。
Existing cascading models for wireless sensor networks (WSNs) cannot correctly reflect the traffic feature of WSNs. In this work, we build a more practical cascading model for WSNs, in which the network load is defined according to two new traffic metrics "sink-oriented node betweenness" and "sink-oriented link betweenness" and the cascading process is jointly propelled by the load redistribution of sensor nodes and wireless links. In addition, load-redistribution schemes are designed according to the principle of "idle capacity". Simulation results show that the network invulnerability is positively related to the tolerance coefficient and negatively related to the exponential coefficient. The minimum costs needed to resist intentional node attacks are more expensive than the costs needed when facing intentional link attacks. (C) 2019 Elsevier B.V. All rights reserved.