A novel strategy for data rate adaptation in IEEE 802.11g in the case of video streaming

In this paper we compare the use of two metrics that could be used as indicators of the quality of streamed video in a wireless home network based on 802.11g. One of the metrics is throughput which is a traditional performance metric. The other metric is based on the perceived quality of a video clip. Based on the perceived video quality and throughput results, a comparison study is carried out between the conventional strategy (i.e. throughput) and a new strategy based on perceptual video quality measurements for data rate adaptation. The results demonstrate that the throughput metric underestimates the perceived quality of video meaning that it is not a satisfactory indicator of the quality of video clips.