Currently geographic / location based routing protocols are more frequently used than topology based routing protocol in highly dynamic mobile ad hoc network. Greedy Perimeter Stateless Routing algorithm (GPSR) is the most commonly used location based routing protocol.
Neighbors of the source are identified
Distance from each neighbor to destination is calculated
Neighbor having least distance is selected as nexthop
Data transmission is carried out using selected nexthop
Nexthop follows from step 1-4 and this process continues till destination is reached