Evaluation of Reactive and Proactive Routing Protocols for MANET

Mobile Ad-hoc networks (MANET) have been an interested field for researchers. MANET is a network doesn't need an infrastructure to build and it's also a self-organization network. These types of networks do not have any requisite for a fixed infrastructure or a central control entity, such as Base Stations (BS) or Access Points (AP). Thus, the Ad-hoc networks can build for scenarios those have a special proposes and goals. Every node in network is freely to move randomly, such a flexibility causing continues changes to the network topology since the nodes are moving, and the routing became a critical issue and an efficient routing protocol needs to be chosen to make the MANET reliable. In this paper a performance comparison where performed, four types of M!NET's routing protocols where chosen in this study: Ad-hoc On-demand Distance Vector (AODV), Dynamic Source Routing (DSR) Optimized link State Protocol (OLSR) and Geographic Routing Protocol (GRP). The performances have been analyzed with are average delay, throughput, load in the network and packet losses/drops. The simulation results indicate that OLSR outperforms AODV, DSR, and GRP in terms of delay and packets dropped, but the AODV better than GRP in throughput when the size of network increases. GRP and DSR have dramatic reduction in performance when the network size increase and mobility is high.