Evaluation for IPTV service based on poor-quality model

This paper proposes an integrated poor-quality model to find the potential relationship between elected STB (set-top boxes) indicators and network conditions. The target is to make the IPTV network fault diagnosis more accurately and efficiently, especially for the sudden pause or blurred screen. The integrated poor-quality model consists of indicator, record and user model. Firstly, the poor-quality indicator model is in charge of selecting the effective indexes from candidate STB indicators. From the result of experiment, we conclude that jitter, abend-number and MLR (media loss rate) are the most important QoS (Quality of Service) parameters in our scenario. Secondly, the poor-quality record model has responsibility for adjustment of threshold values in order to meet the needs of higher accuracy rate with lower misjudgment ratio. Finally, the poor-quality user model takes customer's viewing time parameter into account, which can reflect end user's quality of experience objectively.