Despite the growth in network capacity of wireless in-home networks, these networks often have insufficient capacity to
support multiple simultaneous Audio/Video streams. Unpredictable behavior of these networks results in a drop of video
quality for the end-user. A method for reducing the claim of an individual A/V stream on the network capacity is
controlled frame dropping. However, controlled frame dropping will only be accepted if its effect on the quality that endusers
experience is minimized. In this paper, we define an objective quality metric for frame dropping methods, to
determine when frame dropping is not effective any more. The quality metric, a fraction between 0 and 1, is related to
the characteristics of frame dropping. A quality level below 0.9 indicates that a detectable amount of frames has been
dropped. A quality level above 0.98 indicates that no significant frame drops occurred recently. The metric is validated
with simulations.
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