AN ENHANCED STRATEGY IN BEACON OVERHEAD AND PDR IN MANET USING GEOGRAPHIC ROUTING STRATEGIES

MANET is self-configured Mobile Ad hoc network of mobile nodes connected via random topology. The main issue in MANET is the selection of best path between any two nodes. Routing in MANET is to find the efficient path to transfer the data from source to destination. APU strategy is routing strategy for geographic routing in Mobile ad-hoc network which dynamically adjust the frequency of position updates based on the mobility dynamics of the nodes and the forwarding patterns in the network. The beacon updates include the current location and velocity of the nodes. An Enhanced APU strategy in the proposed system use destination aware routing with minimum distance dynamically adjusts the beacon update intervals based on the minimum distance from source to destination, mobility dynamics of the nodes and the forwarding patterns in the network. Results of the proposed system are compared with Periodic Beaconing on the basis of packet delivery ratio, beacon overhead, energy consumption. Experiment results show a high improvement in results on the parameters discussed. Energy consumption in Periodic beacon scheme is high compared to proposed system since periodic beacon causes high energy consumption in the nodes. APU saves energy by avoiding unnecessary beacon update and do the beacon update adaptively. Beacon overhead in Periodic beacon scheme is high compared to proposed system due to periodic beacon. Proposed system reduces the beacon overhead by avoiding unnecessary beacon update and only does the beacon update process adaptively