Modeling Switched Broadcast Video Services (2004)
By Joseph Weber and Jiong Gong, Cable Television Laboratories
Switched broadcast video services can be used to offer many more broadcast programs, using less bandwidth, than traditional broadcast services. A typical 750 MHz cable plant could theoretically offer over a thousand broadcast digital programs to subscribers, compared to a few hundred programs using traditional broadcast.
We have developed a model to predict average and peak usage of bandwidth for a switched broadcast system given service area size and expected popularity of various programs. This model can be used to plan for the equipment and capacity needed to offer a switched broadcast service.
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