Abstract:

As the streaming media services are widely used, the importance of the relation between QoS indexes and user perception QoE is becoming increasingly obvious. Nevertheless, today's mapping models have not taken various indexes into consideration and ignore fuzziness and randomness in both objective indexes and subjective user perception. A new evaluation model based on cloud model is introduced and each QoS index is described using onedimension cloud, and then the corresponding multidimensional standard judging cloud and multidimensional index cloud of system are established. The results are obtained by comparing the similarity degree between standard clouds and index cloud of system. The experiment shows that this model can reflect the impact of each index on users' perception with onedimension and multidimensional index correlation model.

Key words: QoE;QoS;cloud model;streaming media services