Abstract
Existing mitigation strategies on wireless sensor networks (WSNs) against cascading failures cannot appropriately adapt the particular characteristics of farmland WSNs. Spider web provides a new reference for improving network invulnerability. In this study, a bionic network scheme is built based on symmetric analysis of a series of spider-web vibration transmission trials, which include networking methodology, communication rules, and load capacity model. The basic idea of this scheme is to apply the cascading-failure coping mechanism inspired by spider web into the construction and operation of farmland WSNs. We found that the link backup contributed by a topological structure and communication rules had positive effects on suppressing the spread of cascading failures. The study showed that the damages of cascading failures can be efficiently lowered by regulating the adjustment coefficient of the load capacity model. The difference between the inner-layer node failures and outer-layer node failures for network invulnerability was verified under deliberate attack circumstances. Based on these results, the proposed network scheme can be utilized to enhance the invulnerability performance of farmland WSNs.
Highlights
Wireless sensor networks (WSNs) are a distributed network system consisting of a large number of sensor nodes to wirelessly cooperate in perceiving and processing various information [1, 2]
Due to the gradient distribution of nodes, L7 disabled: the inner layers have fewer nodes than the outer layers, and Complexity the inner-layer nodes with higher load capacities can offset the negative impact of more extra traffic. erefore, based on the classical load capacity model and the topological properties of constructed farmland WSNs, we address the load capacity model to optimize the distribution of traffic and promote the network capabilities against cascade failures
On the basis of the destructive vibration testing, the mitigation mechanism of cascade failures of artificial spider web including topological structures, node deployment mode, and link backup is analyzed theoretically. e network scheme consisting of networking methodology, communication rules, and load capacity model is proposed based on the combination of the characteristics of farmland WSNs and the inspirations of artificial spider web
Summary
Wireless sensor networks (WSNs) are a distributed network system consisting of a large number of sensor nodes to wirelessly cooperate in perceiving and processing various information [1, 2]. Compared with other WSN applications, influenced by the agriculture production mode, farmland WSNs present unique characteristics in terms of network topology, information transmission, and load capacity [16]. By investigating the transmission mechanism of spider-web vibration, we can develop a bioinspired network scheme for improving the invulnerability of farmland WSNs. e objective of this study is to build a bionic network scheme of cascading-failure mitigation for farmland WSNs inspired by the vibration transmission reactions of artificial spider web under various destruction cases.
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