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As 5G mobile communication is making its powerful progress towards full deployment in the near fu-ture, we have witnessed tremendous growth of smart mobile devices capable of various video streaming and sharing services. Mobile video services account for majority of the current Intet and wireless data services. Unlike other type of data services, the quality of video service is primarily goved by the end users who are watching videos on the receiving display terminals. The perception and experi-ence of the end users should be the true criteria to assess the quality of the video services. For emerging video communica-tion services, it is the quality of experience, or QoE in short, of the users that should be the most important measure for system-atic design for next generation mobile communications.