Audiovisual and Haptic Interactive IP Communications Over Wireless LANs and Their QoE

This paper assesses QoE of audiovisual and haptic interactive communications over wireless LANs. We evaluate the effect of two intra-stream synchronization control methods: the media adaptive buffering that sets appropriate playout buffering time for each media and the conventional buffering that sets the same playout buffering time for all the three media. We deal with three network configurations that differ access lines to our campus network; the configurations include wireless LAN access. Then, we assess QoE of the intra-stream synchronization control methods. As a result, even in the case of wireless LAN access, we find that the media adaptive buffering achieves higher QoE than the conventional buffering.