Abstract
Mobile Ad Hoc Networks (MANETs) are wireless networks which work without any infrastructure. Routing in these MANETs is performed by the nodes that establish the network, instead of a central access point. These nodes are constantly moving and travel at a variety of speeds, thus making the network unpredictable. MANETs also operate on limited energy because the nodes are battery powered. Therefore, an efficient routing protocol must be used based on the mobility and the energy consumption of the nodes. The paper compares and analyses four routing protocols, which are OLSR (Optimized Link State Routing), DSDV (Destination Sequenced Distance Vector), AODV (Ad hoc On Demand Distance Vector) and DSR (Dynamic Source Routing) under various conditions. The protocols were simulated using Network Simulator 3 (NS3). It was observed that AODV had the highest average receive rate and the highest average packets received. DSR was observed to consume the most energy. DSDV was found to consume the least energy and had the lowest packet receive rate and lowest average packets received.
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