GeoTORA Optimization

Abstract

Geocasting is a variation on the notion of multicasting. Geocasting is useful for sending messages to nodes in a speci ed geographical region. This region is called the geocast region. This work tries to improve a protocol, named Geo-TORA, for geocasting in mobile ad hoc networks. The modi ed GeoTORA protocol combines routing with clustering to implement geocasting. Thus, GeoTORA requires two phases for routing. First, it divides the group of nodes into regions and then anycasting is performed which is done by modifying the Temporally-Ordered Routing Algorithm (TORA)(unicast) routing protocol. Subsequently clusters are formed within the geocast region to deliver the messages to nodes within the region. This integration of TORA and Clustering can signifi cantly reduce the overhead of control packet overhead, while maintaining reasonable accuracy. Also this Protocol works on large MANET with accuracy and delivers optimized output.