LAUSR

The Mobile Ad-hoc Network (MANET) is self-healing, infrastructure less network. In which, the Quality of Service (QoS) is the main issue in MANET, for number of real time applications. However, problem of cache is very crucial in reactive routing protocols. Therefore, in this paper, we have developed cache update scheme for multipath environment on Dynamic Source Routing protocol, based on cache expiry, prediction based on link breakage and explicit route error message distributedly. Simulation is carried out in Network Simulator by Monarch Group, using QoS metrics. The simulation result obtained using proposed approach shows that, QoS-Updated Multipath Dynamic Source Routing (UMDSR) protocol gives improved performance compare to unipath QoS-UDSR protocol with reduced delay, which can provide stringent QoS to various real time applications.