Node failures on MANET Routing with Multimedia traffic

MANET is a special subset of wireless ad hoc network. Hence it is limited to power and other available resources (bandwidth, range). The paper mainly focuses on the effect and efficiency of protocol to handle node failure in the network. The failure of node results in the failure of link via that particular node and this may be due to the consequences of congestion, low energy levels and unpredictable nature of MANET. Hence we make the use of discrete event simulator known as OPNET 14.5 to evaluate the performance of protocols (AODV, DSR, OLSR and TORA) in the node failure network environment. In this paper, we present a performance comparison between above mentioned protocols in a node failure scenario.