Routing Load Analysis of Broadcast based Reactive Routing Protocols AODV, DSR and DYMO for MANET

The Mobile Ad-hoc Network (MANET) is a collection of self-configuring mobile node without any infrastructure. The mobile nodes with wireless radio interface are connected by wireless links where each device in a MANET is free to move independently and randomly with the capability of changing its links to other devices frequently. It is a multihop process because of the limited transmission range of energy constrained mobile nodes and thus each device in network topology acts as a router. Many protocols are reported in this field but it is difficult to decide which one is best in all scenarios. In this paper on demand routing protocols AODV, DSR and DYMO based on IEEE 802.11CSMA/CA MAC protocol are examined and characteristic summary of these routing protocols is presented. Their performance is analyzed and compared on performance measuring metrics throughput, packet delivery ratio, end-to-end delay, dropped packets due to non availability of routes, duplicate RREQ generated for route discovery and normalized routing load by varying CBR data traffic load using QualNet 5.0.2 network simulator.