An Analysis of Link Disjoint and Node Disjoint Multipath Routing for Mobile Ad Hoc Network

In Mobile Ad hoc Network, path between source and destination node changes too frequently due to unpredictable behavior and movement of mobile nodes. The data delivery to the intended destination becomes very challenging. The paths exist between source and destination node may be various types. Data delivery may be done with single or multiple paths. Single path sometimes not guaranteed about data delivery, so one of the better solution is multipath data delivery. Here, in this paper, we have considered Link Disjoint and Node Disjoint multipath for data delivery. For this AOMDV protocol with node and link disjoint is considered to evaluate performance. To evaluate their performance different node pause time considered with varying number of nodes. We have computed various QoS network metrics like throughput, average end-to-end delay, routing overhead to identify in which method of data delivery perform better and in what conditions. The results obtain shows that Node Disjoint multipath method AOMDV performs better than Link Disjoint method. The simulation work carried out using Simulator NS-2.34. Index Terms—Link-Disjoint, Node-Disjoint, Throughput, end-to-end delay, routing overhead, pause time.