A Methodology for Characterizing Real-Time Multimedia Quality of Service in Limited Bandwidth Network

Yoanes Bandung, Idi Sumardi

Abstract


This paper presents how to characterize the quality of multimedia which consists of audio and video that are transmitted in real-time communication through the Internet with limited bandwidth. We developed a methodology of characterizing the multimedia Quality-of-Service (QoS) by measuring network parameters (i.e., bandwidth capacity, packet loss rate (PLR), and end-to-end delay) of testbed network and simulating the audio-video delivery according to the measured network parameters. The analysis of network parameters was aimed to describe the network characteristics. Multimedia QoS was characterized by conducting a simulation using data which was collected from the previous network characterization. A simulation network model was built using OMNet++ representing a delivery of audio-video in real-time while a background traffic was generated to represent a real condition of the network. Apllying the methodology in a network testbed in Indonesia’s rural area, the simulation results showed that audio-video could be delivered with accepted level of user satisfaction.


Keywords


quality of service, multimedia communication, audio and video, network characterization, limited bandwidth network

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DOI: http://dx.doi.org/10.12928/telkomnika.v14i4.3295

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