AUGMENTED ZRP AS A ROUTING PROTOCOL FOR MANET

A Wireless ad hoc network is a collection of mobile nodes like Laptop computers and personal digital assistants with no pre-defined infrastructure and has wireless interface and communicate independently with each other via radio or infrared. With the recent advances in infrastructure less network MANET came into existence. MANETs have several salient characteristics such as Dynamic topologies, Bandwidth-constrained, Energy-constrained operation, Limited physical security etc. Routing is an important challenge in wireless adhoc networks. Proactive and Reactive both have some disadvantages therefore we use hybrid routing protocols to enhance the performance of adhoc networks In this paper, an attempt has been made to compare performance of existing ZRP with modified one (Extended ZRP) on basis of their performance in MANETs. While analyzing existing ZRP some undesirable effects as longer delays, higher routing overhead and lower packet delivery are encountered due to increase in congestion. Subsequently, ZRP is extended by introducing some new parameters so that enhanced performance in MANETs can be achieved while using ZRP as a routing protocol.