QoE Enhancements for Video Traffic in Wireless Networks through Selective Packet Drops

This paper proposes a queuing technique for important video frame packets with the objective to improve the performance of video transmission as perceived by the end users, across the IEEE 802.11e network. The proposed mechanism preserves the video Quality of Experience (QoE) by avoiding the I-Frames transmitted as part of the Group of Pictures (GoP) from being dropped during queue congestion. The method is evaluated using the NS-3 simulator with the Evalvid module and the results demonstrate the video flows will have better in Mean Opinion Score from the subjective evaluation point of view compared to the original IEEE 802.11e queueing.