This chapter presents a model for the estimation of user-perceived quality, or Quality of Experience (QoE), from network and/or service performance and/or quality parameters (QoS) in multimedia services, and specifically in Triple-Play (3P) services: television (TV), telephony and data services, managed and offered by a single operator as a single package.
In particular, it focuses on 3P convergent services (deployed over a common, IP-based transport network), and the relationship between the quality perceived by the users of such services and the performance parameters of the underlying network. Specifically, it contributes to the online estimation of such quality (i.e. during service delivery, in real or near-real time).
User QoE is a determining factor for the success or failure of these services and, thus, its proper management is a key element for their successful deployment. QoE is easy to understand, but difficult to implement in real systems, mainly because of the difficulty of its modeling, evaluation and translation in terms of Quality of Service (QoS) parameters. While QoS is easy to measure, monitor and control, QoE is still very difficult to manage.
A complete methodology for the management of QoE must include at least: ...