Owing to wireless communication's broadcast nature, wireless sensor networks (WSNs) are vulnerable to denial-ofservice (DoS) attacks. It is of great importance to design an efficient intrusion detection scheme (IDS) for WSNs. In this study, the authors propose a novel IDS based on energy prediction (IDSEP) in cluster-based WSNs. The main idea of IDSEP is to detect malicious nodes based on energy consumption of sensor nodes. Sensor nodes with abnormal energy consumption are identified as malicious ones. Furthermore, IDSEP is designed to differentiate categories of ongoing DoS attacks based on energy consumption thresholds. The simulation results show that IDSEP detects and recognises malicious nodes effectively.
Many issues are considered such as the limited energy of the mine safety monitoring system, which bring about the accidents taking place frequently. In this paper, the wireless monitoring system and protocol is re-selected and continuously improved. A reliable and energy-efficient routing protocol——SPIN-RE (SPIN-Reliable and Energy efficient) is proposed to improve the efficiency of the node energy and prolong the lifetime of the wireless sensor network. It is based on the SPIN which is the traditional routing protocol. It adds not only the energy threshold but also the memory list in the REQ message to balance the energy consumption between the single node and the whole network in the process of the data transmission. The result of the simulation shows that this protocol has a great improving in saving energy compared with the SPIN routing protocol.
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