[1794-1797]

In geographic routing each node needs location information about other nodes in the network to forward data packets to the destination. If a node maintains location information about all the nodes in the network then it is difficult to maintain the location information when the network is highly populated with many number of nodes. So that a highly scalable protocol needed to maintain location information thus a GPSR protocol maintains only information about their neighbor it does not bother about the number of nodes in the network. For highly dynamic ad hoc network the location information need to be updated very frequently to update the changes in the network nodes. The adaptive location updation strategy is used for more frequent updation with a scalable GPSR protocol is used for highly dynamic network to update the changes