Date of Publication :15th April 2024

Abstract: VoIP provides high-quality services via the use of Vehicular Ad-hoc Networks (VANET). These networks encounter many challenges in order to provide voice interactions with satisfactory quality of service (QoS). The performance of VoIP applications on the VANET network is analysed using the OLSR Routing Protocol. Subsequent to the execution of the OLSR algorithm, the network underwent testing. The testing focused on evaluating Quality of Service (QoS) characteristics, such as end-to-end latency, delay variation (jitter), and chance of packet loss. This was done using the ITU G.711 VoIP codec, and the tests were conducted between multiple nodes in multi-hop ad-hoc networks under different scenarios. After measuring the QoS parameters for packet loss, jitter, and delay for different scenarios, the approach got average packet loss about 0.37%, average jitter 10.65%, and average delay is 90.21%. The OLSR performed well during the first four hops. By including more hops, the delay significantly rising, above the threshold of 400ms, therefore violating the established criteria set by ITU-T. Rather of employing a simulation, this was accomplished by constructing a testbed to extract the needed findings.

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