Simulation Based Analysis of VOIP over MANET

In the last decade, Mobile Ad hoc Network (MANET) routing protocols studies have concentrated more on proactive routing protocols with various specifics to data traffic. Only some works have covered the issues of reactive protocols endorsing voice application. This research work examines the VoIP application performance in MANET set up with Temporary Ordered Routing Algorithm (TORA) routing protocol as ondemand routing protocol. The VoIP application is measured by employing four different parameters i.e. MAC protocol, codec, node density and mobility by using OPNET Simulator. The quality of transmission was evaluated by employing different performance metrics i.e. Mean Opinion Score (MOS), jitter, throughput and end-to-end delay. Results indicate that major metrics that had high effect on the network performance involving node density and mobility. This research showed that communication in an ad hoc network utilizing TORA is more effective and productive and effective with less nodes.