Joint assessment of Network- and Perceived-QoS in video delivery networks

Given the increasing number of IP streaming video customers, service providers are seeking an efficient way to monitor in real time the offered quality of service, as perceived by each end user. Since real-time video quality assessment via image processing algorithms is quite bandwidthand processing-power-demanding, a feasible alternative could be to monitor the network-level quality of service (NQoS) and associate it with the perceived QoS (PQoS). This article presents a network-agnostic framework for the joint assessment of Nand PQoS, with the aim of correlating these two parameters for a specific network and service configuration. This framework/architecture is implemented with open source software tools and is being demonstrated in an actual WiMAX streaming video distribution platform.