In vehicular ad hoc networks (VANETs), besides the original applications typically related to traffic safety, we nowadays can observe an increasing trend toward infotainment applications, such as IPTV services. Quality of experience (QoE), as observed by the end users of IPTV, is highly important to guarantee adequate user acceptance for the service. In IPTV, QoE is mainly determined by the ava...

In Quality of Experience (QoE) research, the concept of ’expectations’ is frequently used but seldom defined with sufficient clarity and precision. In this paper, we present theoretical and conceptual approaches originating from various research fields that deal with expectations and its measurement. In addition, we also present results from our own empirical work to exemplify how to measure an...

Live mobile streaming applications will be among the most important applications in future wireless multimedia systems. Hence, a Quality of Experience (QoE) assessment control mechanism is an essential requirement to assure the video quality level, whiling maximizing profits to service providers and keeping and attracting new customers. This paper studies the requirements to develop a video art...

Consumers of short videos on Internet can have a bad Quality of Experience (QoE) due to the long distance between the consumers and the servers that hosting the videos. We propose an optimization of the file allocation in telecommunication operators’ content sharing servers to improve the QoE through files duplication, thus bringing the files closer to the consumers. This optimization allows th...

The Quality of Experience (QoE) is a key element in the search for rapid growth of three-dimensional video technology. Research concerning the study of QoE in a 3D environment is on the move. This paper proposes a review of 3D QoE specificities. We will also present the actual findings in this area as well as the projects in process around the world. Thus, any researcher wishing to know more ab...

Department of Communication Engineering, Kwangwoon University, Korea Summary Recently, DASH (Dynamic Adaptive Streaming over HTTP) is gaining attention because it is possible to use an existing web server, and not be restricted by the firewall or NAT (Network Address Translator). However, the existing video quality adaptation methods for DASH do not consider the frequent change of video quality...

Increased access to broadband networks has led to a fast-growing demand for Voice and Video over IP (VVoIP) applications such as Internet telephony (VoIP), videoconferencing, and IP television (IPTV). For pro-active troubleshooting of VVoIP performance bottlenecks that manifest to end-users as performance impairments such as video frame freezing and voice dropouts, network operators cannot rely...

This paper studies a method of investigating effect of IP performance (QoS) degradation on quality of experience (QoE) for a Web service; it considers the usability based on the ISO 9241-11 as multidimensional QoE of a Web service (QoE-Web) and the QoS parameters standardized by the IETF. Moreover, the paper tackles clarification of the relationship between ISO-based QoE-Web and IETFbased QoS b...

Quality of Experience (QoE) drives churn in the broadband networks industry, and good QoE plays a large part in the retention of customers. QoE is known to be affected by the Quality of Service (QoS) factors packet loss probability (PLP), delay and delay jitter caused by the network. Earlier results have shown that the relationship between these QoS factors and QoE is non-linear, and may vary f...