Tuning and Performance Analysis of Geographical Routing Protocol in MANET

MANET (Mobile Ad Hoc Network) is a network of mobile devices that communicates through wireless links without the use of any existing network infrastructure or centralized administration [1]. There is no fixed topology of the nodes because of the high mobility of the nodes within network. Many routing protocols for mobile ad hoc networks (MANETs) rely on additional information such as geographical locations obtained via GPS to improve the overall performance of the route discovery process. The GRP is one of such routing protocol which is proactive, distance-based, greedy algorithm which assumes that each node in the network knows its own GPS location. In this paper the major goal is to tune the performance of Geographical routing protocol (GRP) with controlled initial flooding.