MODELING SWITCHED BROADCAST VIDEO SERVICES

摘要

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.