关键词: IPTV服务, 用户体验质量（QoE）, 网络服务质量（QoS）

Abstract: IPTV is a new multimedia service over the Internet. Compared with cable TV and digital TV, the quality of IPTV service is more likely to be affected by the real-time impairment in network transmission because the Internet is a best-effort network which cannot guarantee the quality. In this paper, the problem of mapping from the objective QoS value to the subjective QoE value is focused on, to achieve QoE real-time measurement by monitoring QoS on the Internet. In this research, IPTV simulation platform is designed to simulate the whole process from ICP to end users which containing the network impairment. Through the testbed, QoE evaluation model is established to map QoS to QoE for different codec and different content. After that, taking into account the demand of accuracy and speed, an optimized and unified QoE evaluation model is provided to fit the need of real-time measurement. Result shows that QoE evaluation model has a high relevance to actual result.

Key words: IPTV service, Quality of Experience（QoE）, Quality of Service（QoS）