Abstract
In dynamic topology of the MANET's nodes are having the high mobility in nature. Because of the dynamic nature of nodes very difficult to find the exact location of node in network for data delivery. Here we proposed that to find the exact location of node and ensure the data delivery to destination. In existing system, the location aided routing mechanism where used to find location of node. In this there is load balancing problem and drop tail problem is there. To overcome drop tail problem to implement using the TCP protocol in the geographical routing. Greedy Perimeter Routing protocol which is used to reduce link cost and improve the routing performance. We propose the Adaptive Position Update (APU) strategy for geographic routing, which dynamically adjusts the frequency of position updates based on the mobility dynamics of the nodes and the forwarding patterns in the network. APU is based on two simple principles: 1) nodes whose movements are harder to predict update their positions more frequently (and vice versa), and (ii) nodes closer to forwarding paths update their positions more frequently (and vice versa).
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