Extended Ad Hoc on Demand Distance Vector Local Repair Trial for MANET

Adhoc On-demand Distance Vector (AODV) is a routing schema for delivering messages in a connectedMobile Adhoc Network (MANET). In MANETs, a set of nodes are used to route the data from source todestination and it is assumed that nodes are distributed over the entire region. Connectivity between anysources to destination pair in the network exists when they are in radio range of each other. Thetechnique used to deal with the issues called Local Repair. Local Repair is an important issue in routingprotocol which is needed for minimizing flooding and performance improvement. Local Repair is one ofthe major issues in the protocol; routes can be locally repaired by the node that detects the link breakalong the end to end path. Local Repair will increase the routing protocol performance. In this paper,the existing Local Repair Trial method in AODV is extended to achieve broadcasting and minimizing theflooding. The Enhanced protocol first creates the group of mobile nodes then broadcasting can be doneand if the link breaks then local repair technique can be applied. In the network the numbers ofintermediate nodes are increased by using Diameter Perimeter Model. Enhanced AODV-Local RepairTrial (EAODVLRT) protocol is implemented on NS2 network simulator. Simulations are performed toanalyze and compare the behavior of proposed protocol (EAODVLRT) for varying parameters such assize of network, node load etc. Proposed protocol has been compared with the existing AODV-LRT interms of routing load, Data delivery ratio.