Analyzing MANET uncertainty with the probability and possibility theory

MANET i.e. a mobile ad hoc network does not have a fixed infrastructure and is a self configuring one. So the nodes are mobile and due to this mobility the uncertainty arises. This uncertainty affects the node's behavior and also choice of other nodes for proper communication with each other. The evaluation of the uncertainty is needed so that the less uncertain nodes can be considered for participating in the network communication. The uncertainty can be calculated using different theories namely probability, fuzzy theory, etc. The paper gives proposed possibility theory based on fuzzy basics mathematical model which is used to evaluate the uncertainty of the nodes. Also the proposed model is compared with the probability theory. The mathematical model is integrated in the AODV protocol with direct and indirect observation. Simulations are done under different varying parameters like number of malicious nodes and pause time. The result shows the effectiveness of proposed model in terms of throughput, packet delivery ratio and other metrics.