QoE enhancement of audiovisual IP communications by joint application of FMO and a QoE-based video output scheme

Abstract

Ahstract-This paper studies a method of enhancing QoE (Quality of Experience) in H.264-video and audio IP transmission by jointly applying FMO (Flexible Macroblock Ordering) and SCS (Switching between error Concealment and frame Skipping), which is a QoE-based video output scheme simply based on the receiver's operation. We conducted objective and subjective experiment on the method for combinations of two slice group map types (interleaved and dispersed), four contents and three picture patterns (I, 1+4P's and 1+14P's); we measured QoS (Quality of Service) and then assessed QoE in terms of the psychological scale. As a result, we find that for the patterns 1+4P's and 1+14P's, combinations of SCS and the dispersed map type work best, whereas for the pattern I, the frame skipping only (i.e., SCS without FMO) achieves the highest QoE.

[Paper] A Cache Decision Policy for QoE Enhancement of Video and Audio Transmission over ICN/CCN

“…In network services, it is vital to provide high Quality of Service (QoS) 3) to enhance service usability. The delay, delay jitter, and packet loss on the network degrade QoS largely, especially in continuous media such as video and audio.…”