Evaluation of performance degradation due to the presence of bottleneck intermediate node in communication path in manet

Abstract

In order to have effective communication in any network, routing protocol must select the efficient path and forward the information through selected path in the form of packets. In MANET most of the routing protocols select the routing path by assuming that the node present in the network are supportive for networking functionalities. However, nodes present in the MANET are having constrained resources such as battery, computational capacity and memory. These limiting factors causes the networking functionalities to be vulnerable, and drop the packets form routing path. One such situation in the network layer is the formation of bottleneck intermediate node. In this paper we evaluate the performance of network during the formation of bottleneck intermediate node in the communication path. Performance results indicate that the bottleneck intermediate node is a serious problem, and conclude that the appropriate mechanisms are needed to overcome the problem of bottleneck intermediate node formation in the communication path.