A Study of Influencing Factors on the Quality of Experience Perception in Video Streaming

Abstract

Video Services using Over-The-Top (OTI) becomes extremely popular in all countries but video streaming through unguaranteed path in Internet cause a lot of problems of keeping the Quality of Experience (QoE) on a suitable level In the previous works of authors the influence of Quality of Service (QoS) parameters on QoE were studied using subjective assessment. As a result of this study objective QoE metrics: the frequency and duration of re-buffering were chosen as main parameters of customer perception. The dependency of these metrics from QoS parameters were obtained for separate inftuence factors (packet loss, delay, bitrate). In this paper the results of studies of complex influencing factors on QoE are presented. Combination of the inftuencing QoS factors cause the degradation of the threshold after which re-buffering starts. The comparison of resistance to complex influencing factors for different video streaming technologies (Pseudo-HTIP streaming, R and HDS)were done.The results of comparison show that different streaming technologies react on combination of packet loss, throughput and delays in a various ways. The recommendations for using video streaming technologies with OTT are done