GOP size influence in high resolution video streaming over wireless mesh network

Abstract

Video transmission over IP networks requires appropriate conditions of quality of service, in order to ensure the integrity of the image, which still represents a challenge to be overcome in wireless mesh networks due to traffic capacity limitations inherent to its architecture. In this work we evaluate the performance of high-resolution video over multihop mesh networks and we propose a suitable GOP size for encoding video to be streamed, based on traffic conditions to minimize the loss of quality. Experiments were carried out in a wireless mesh network planned for real testing within a 1500m 2 area of the main UFAM campus, using the IEEE 802.11a and 802.11n network standards.

A parametric QoE video quality estimator for Wireless Networks

“…Based on a state-of-the-art analysis, it is clear that the accuracy and performance of QoE-multimedia video estimation or prediction is strongly dependent on the video characteristics, GoP length [20] [21], frame importance [22], AI technique and MOS experiments. PSQA can be regarded as a good assessment solution, although it does not consider explicit parameters to reflect the spatial-temporal activity of the videos.…”