Detecting malicious node in network using packet delivery ratio
Sanjay Tyagi, Girdhar Gopal, Vikas Garg · International Conference on Computing for Sustainable Global Development · 2016
The major function of sensor networks is to gather the data from various sensor nodes which are used to transmit the data at different base stations. Due to fault or presence of malicious node in the network, collected data might be wrong or hijacked. It is important and difficult to detect the unsafe work done by any malicious node. There are many factors involved such as packet delivery ratio, jamming signal, tempering, which help to defend against malicious node or to detect the malicious node. In this paper, malicious node detection based on packet delivery ratio (PDR) has been proposed. The packets in network must reach the destination in order to provide the reliability in network, but the malicious nodes may tamper some of the packets and make the communication fail. Total number of packets sent by the sender may or may not be received by the receiver and it depends on whether there is any malicious node present or not in the network. So one can use this delivered packet information and calculate the packet delivery ratio to find out the malicious node. Simulation in this paper shows that the proposed scheme finds the malicious nodes in the network in efficient and effective manner.