Impact of packet loss and delay variation on the quality of real-time video streaming
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The aim of this work is to bring complex view on video streaming service performance within IP-based networks. Video quality as a part of multimedia technology has a crucial role nowadays due to this increase. Since architecture of IP network has not been designed for real-time services like audio or video, there are many factors that can influence the final quality of service, especially packet loss and delay variation (also known as Jitter). The research was focused on the quality of video data delivery in many scenarios included different packet loss rate and simulating of different delay variation values in the network. Performed tests were evaluated by using of video objective methods. Based on results of these measurements, an extended QoS model for estimation of triple play services was designed. The proposed model allows us to compute the estimated objective quality parameters that describe the final quality of video service as a part of triple play services.
KeywordsDelay variation Packet loss Prediction model VQM SSIM Video quality assessment
This work was supported by Grant of the SGS No. SP2015/82 and was partially supported by the European Regional Development Fund in the IT4Innovations Centre of Excellence project (CZ.1.05/1.1.00/02.0070).
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