Quality of Service in Mobile Ad Hoc Network

Mobile Ad hoc Network is co-operative collection of mobile computers communicating with each other through wireless links, without any centralized administration or existing infrastructure. In this work, a probabilistic approach is used that can help in finding the availability of future routes. Availability of a route in future mainly depends on the availability of links between the nodes forming the route. Therefore, it is important to predict the future availability of a link that is currently available. We have introduced an analytical model for link prediction using Pareto distribution, Laplace distribution and Normal distribution. Since, the exact distribution of link availability is not known, we have applied Pareto, Laplace and Normal distribution to represent epoch length interval. In addition to Epoch length, other factors such as, energy consumption, fading, change in velocity of nodes, etc. also contributes to link failures. We have considered the cumulative contribution of these factors as one of the parameters.