Customization of Interactive Services for QoE Enhancement in Audio-Video Transmission Over Bandwidth Guaranteed IP Networks

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This paper proposes a method of customizing interactive audiovisual communication services over bandwidth guaranteed IP networks typified by NGN in order to maximize QoE (Quality of Experience) on an individual users' basis. The method is based upon an extension of a QoE guarantee architecture GPSQ (Guarantee of Psychologically Scaled Quality), which the authors proposed previously. GPSQ extended for interactive services is referred to as interactive GPSQ, which focuses on a salient feature associated with the interactive services, i.e., the existence of the optimum playout buffering time for absorbing delay jitter.