Fair bandwidth sharing for video traffic sources using distributed feedback control
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United States of America Patent
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Jun 13, 2000
Grant Date -
N/A
app pub date -
Nov 9, 1995
filing date -
Nov 9, 1995
priority date (Note) -
Expired
status (Latency Note)
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Abstract
An apparatus and method providing fair bandwidth sharing by adjusting video image quality in a data packet network includes a network load detector for detecting a network load and a video encoding circuit. The network load has an uncongested state, a loaded state and a congested state. The video encoding circuit adjusts a video quality to a target video quality, by increasing the video quality when the network load is in the uncongested state and decreasing the video quality when the network load is in the congested state. The video quality is determined as a peak mean squared error between an uncompressed image and a corresponding decoded image. The network load is detected by using a forward explicit congestion notification bit.
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