A Study on Importance of Scale Link-State Routing and It’s Factors Related to Ad Hoc Networks | Original Article

ABSTRACT:

A mobile ad hoc network (MANET) consists of mobile wireless nodes in which the communication between nodes is carried out without any centralized control. MANET is a self-organized and self-configurable network where the mobile nodes move arbitrarily. The mobile nodes can receive and forward packets as a router. Routing is a critical issue in MANET. Therefore focus in this study is to compare the performance of three routing protocols DSDV, DSR and AODV for CBR traffic by varying no. of nodes in terms of packet delivery ratio, end to end delay, routing overhead and throughput. The simulation is carried out on NS2. The ad hoc nodes are mobile and the underlying communication medium is wireless. Each ad hoc node may be capable of acting as a router. It’s characterized by multihop wireless connection and frequently changing networks. we compare the performance of on-demand routing protocols for mobile ad-hoc networks are distributed cache updating for the dynamic source routing protocol(DSR) and ad hoc on demand distance vector routing (AODV).the simulation model of the medium access control(MAC) layer is evaluating the performance of MANET protocols. DSR and AODV protocols share similar behaviours. We evaluate the both on demand protocols DSR and AODV based on packet delivery ratio, packet delivery latency, mobility variation with total number of errors, packet and normalized routing overhead, end-to-end delay by varying in node density. The performance and characteristics are explained by the graph models.