ABSTRACT

Adhoc network consists of peer-to-peer communicating nodes that are highly mobile. As such, an ad-hoc network lacks infrastructure and the topology of the network changes dynamically. The task of routing data from a source to a destination in such a network is challenging. Both proactive and reactive routing protocols prove to be inefficient under these circumstances. Most of the ad-hoc protocols support presence of the bidirectional links but in reality the Adhoc network may consists of heterogeneous nodes with different transmission ranges. Thus, unidirectional links are formed. In this paper we consider a routing protocol called the Enhanced Zone Routing Protocol (ZRP) combines the advantages of the proactive (table driven) and reactive (demand driven) approaches to provide scalable routing and to create bidirectional links in the Adhoc networks. It is also proposed that, the stable routes and a query enhancement mechanism in enhanced Zone Routing Protocol to maximize the throughput and for effective utilization of bandwidth.