| 摘要 |
A multi-rate statistical multiplexing system is configured to determine whether a subscriber-line is in a congested-state. The subscriber-line provides one or more channels requested by a subscriber. The system selects a version among different versions of each requested channel based on the level of congestion and an indicator of perceived quality of viewing experience of each requested channel. The system switches to the selected version of each channel and the perceived quality of viewing experience is maintained after switching.
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