End-2-End Evaluation of IP Multimedia Services, a User Perceived Quality of Service Approach

Providing Quality of Service (QoS) has always been an important task for Internet Service Providers. However, the proliferation of new multimedia content services has turned it a vital and challenging issue. The problem with QoS in nowadays Internet is what to measure and how to do it in order to provide real quality levels to end-users. Recent works in the field have focused on the service consumer, assessing the QoS as perceived by the end-user. This paper addresses the automatic evaluation of the QoS as Perceived by an end-user (PQoS) of a multimedia service. The authors present a general overview of the PQoS approach, studying the impact of different network and multimedia features on the quality as experienced by human beings.