Passive Estimation of Quality of Experience

Quality of experience (qoe) is a promising method to take into account the users' needs in design ing, monitoring and manag ing networks. however, there is a challenge in finding a quick and simple way to estimate th e qoe due to the diversity of needs , habits and customs. we propose a new empirical method to approximate it automatically from passive network measurements and we compare its pros and cons with usual techniques. we apply it, as an example , on adsl traffic traces to estimate the qoe dependence on the loss rate for the most used applications . we analyze more precisely the correlations between packet losses and some traffic characteristics of tcp connections, the duration, the sizes and the inter-arrival. we define different thresholds on the loss rate for network management. a nd we propose a notion of sensitiveness to compare these correlations on different applications