PERFORMANCE ESTIMATION OF ADHOC ROUTING PROTOCOLS WITH NS2 SIMULATOR

A mobile adhoc network is a collection of wireless mobile nodes dynamically creating a temporary network without usage of any prevailing network infrastructure or consolidated management. Several routing protocols like Dynamic Source Routing (DSR), Adhoc On-Demand Distance Vector Routing (AODV) and Destination Sequenced Distance-Vector (DSDV) have been implemented. In this paper, an attempt has been made to compare the performance of two prominent on-demand reactive routing protocols for mobile ad hoc networks: DSR and AODV, along with the traditional proactive DSDV protocol. A simulation model with MAC and physical layer models is used to study interlayer interactions and their performance inferences. The On-demand protocols, AODV and DSR perform better than the table-driven DSDV protocol. Although DSR and AODV share similar on-demand performance, the differences in the protocol mechanics can lead to significant performance differentials. A variation of workload and scenarios, as characterized by mobility, load and size of the ad hoc network were simulated. The performance analysis is evaluated by means of varying network load, mobility, and network size. These simulations are conceded out based on the Rice Monarch Project that has made considerable additions to the NS-2 network simulator to track adhoc simulations.