Location estimation based routing for mobile adhoc network

Mobile Ad hoc networks (MANET) are multi hop networks, which are self organized, self configured and their topologies are changed dynamically. The destination node may be out of range of source node and routes are changing with time due to mobility of nodes. So a routing procedure is required to establish a path between them to send packets. Based on mobility pattern of MANET nodes, we have proposed four reactive routing models of MANET, which utilize position information of GPS, enabled nodes to restrict the search of a new stable path in a smaller cone-shape request zone. Among the proposed models, first three are being recommended for open field networks whereas last one is for urban area networks. We have compared our models with LAR, LARDAR and TN-CMAD and have shown the proposed models performed better in terms of overhead packets and energy consumption but a little increase of path-finding error.