Simulation and Analysis of Quality of Service (QoS) of Voice over IP (VoIP) through Local Area Networks

A Local Area Network is designed and simulated to investigate the effect of Quality of Service (QoS) on the performance of the network. The experiment examines the performance of non-QoS scenario and QoS scenario. Voice Jitter, Voice Mean Opinion Score value, Voice Packet End-to-End Delay, Voice Packet Delay Variation, Voice traffic received, and Voice traffic sent are used as performance parameters. The result demonstrates that QoS scenario outperformed non-QoS scenario. Therefore, the Quality of Service (QoS) has improved the overall performance of the network.