Objective and subjective measurement QoE in SDN networks
Tasnim Abar, Asma Ben Letaïfa, Sadok El Asmi · 2017
The need for more efficient transmission of video stream over the network has become more exigent due to the use of video in several domains(video conference, VOD, etc). The video quality is much affected because of delay, packet loss, etc in the network which degrades the user's perceptions. In this paper, we introduce some of objective metrics (network parameters and encoding video parameters) of video streaming that can affect users' quality of experience (QoE) over SDN networks. Our ultimate goal is to understand how the network parameters and encoding video parameters affect the QoE of video streaming in SDN network and obtain a correspondence between objective QoE and subjective QoE. We conclude that the packet loss is the most factor can affect the quality of video and with VQM strictly lower than 0.52, we can highlight that the video quality is excellent. So to realize this work we use Mininet as simulator of the network SDN and floodlight (SDN controller).