Reliability factor-based mathematical model for isolating selfish nodes in MANETs Online publication date: Sat, 26-Jul-2014
by J. Sengathir; R. Manoharan
International Journal of Information and Communication Technology (IJICT), Vol. 6, No. 3/4, 2014
Abstract: In MANETs, the performance mainly depends on the cooperation among all the active mobile nodes in the network. Compromising a node to cooperate with all other nodes in the network is a difficult task due to the scarce availability of resources. Hence, mobile nodes could deny the transmission of packets of its neighbour nodes but still forward its own packets. This intentional behaviour of a node is known as selfishness. Our proposed work targets on detecting and isolating the selfishness based on the second hand reputation computed exponentially with the aid of packet deficiency factor (PDEF). The performance of this mathematical model is analysed using ns-2 simulator based on the evaluation parameters determined by varying the number of selfish nodes present in the environment. The results obtained predicts that the proposed model suits better when compared to the existing models available for isolating selfish nodes in an ad hoc environment.
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