Fair bandwidth sharing for video traffic sources using distributed feedback control
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United States of America Patent
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May 17, 2005
Issued Date -
N/A
app pub date -
Jul 19, 2002
filing date -
Nov 9, 1995
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
An apparatus and a smethod providing fair bandwidth sharing by adjusting video image quality in a data packet network comprises a network load detection means for detecting a network load and a video encoding control circuit. The network load has an uncongested state, a loaded state, and a congested state. The video encoding control 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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