An Enhanced Inter-Domain Communication among MANETs through selected Gateways

In Mobile Ad-hoc Networks(MANETs), enabling communication among different domains is becoming one of the areas of research topics as Border Gateway Protocol (BGP) is not adequate to support MANETs (Mobile Ad-hoc Networks). BGP does not scale to mobile and topological environment [14]. So there is a need to develop an efficient inter-domain routing protocol for heterogeneous MANETs. This is to improve the connectivity of the nodes present in different domains. Gateways as special nodes must be used for InterDomain communication which acts as bridge between domains and they play a major role in route updation, protocol translation and policy enforcement. Due to mobility of nodes, gateway functionality must be assigned dynamically for nodes as static assignment will not be effective. In this paper an attempt has been made to select minimum number of gateways. Nodes in different domains can communicate through the selected gateways. Data transmission occurs through minimum hops (minimum geographical distance) and least load path.