Performance assessment of reactive routing protocols in Mobile Ad-hoc Networks under CBR traffic using NS2

Mobile Ad-hoc Network (MANET) is a physical infrastructure less network, in which there are no fixed nodes and every node in the network functions like a router, which discovers the routes for other nodes in the network, and route the data packets that are not within the direct communication. There are many protocols have been proposed for MANET. The most widely used and popular are AODV, DSR, and DSDV. In this paper, we compare the performance of reactive routing protocols under CBR traffic using NS-2.35. The performance is evaluated based on packet delivery ratio (PDR), throughput, average end-to-end delay, normalized routing load (NRL). The comparison results show that AODV performs best in medium and large network while DSR performs best in small network.