Evaluation Comparison of AODV DSR and OLSR in Ad Hoc Networks Routing Protocols

Mobile ad hoc networks (MANETs) are categorized by multi-hop wireless connectivity, frequently varying network topology and the need for efficient dynamic routing protocols plays an important role. A mobile ad hoc network (MANET) consists of mobile wireless nodes. The communication among these mobile nodes is carried out without any centralized control. MANET is a self-configurable andself-organized network where the mobile nodes move randomly. The mobile nodes can accept and forward packets as a router. Routing is a serious issue in MANET and hence the focus of this thesis along with the performance analysis of routing protocols. A variety of routing protocols targeted specifically at this environment have been developed and some performance simulations are made on numbers of routing protocols like Ad hoc On-Demand Distance Vector Routing (AODV), Dynamic Source Routing (DSR) and Open Link State Routing (OLSR).We compared three routing protocols i.e. AODV, OLSR andDSR. Our simulation tool will be OPNET modeller. The presentation of these routing protocols is examined by three metrics: delay,throughput andnetwork load. All the three routing protocols are explained in a deep way with metrics. The comparison study will be carrying out about these protocols and in the last the conclusion will be presented, that which routing protocol is the finest one for mobile ad hoc networks.