Dynamically Adjusting the Request Zone in GeoAODV Protocol

Geographical AODV (GeoAODV) Rotate is a variation of a regular GeoAODV scheme that aims to reduce the control message overhead introduced by ad-hoc on-demand distance vector (AODV) routing protocol. GeoAODV reduces the route discovery overhead by searching only a portion of the network that is likely to contain the desired node. The search area is computed based on the nodes’ location coordinates obtained via the Global Positioning System (GPS). GeoAODV Rotate improves the performance of regular GeoAODV by dynamically adjusting the search area during the route discovery process. The paper also discusses the results of a comprehensive simulation study, conducted using OPNET Modeler version 16.0 software package, which compares the performance of GeoAODV Rotate against the AODV, regular GeoAODV, and two variations of Location-Aided Routing (LAR) protocol.