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随着电信运营商和互联网运营商不断进入视频和电视服务领域，有线电视运营商面临着向用户提供越来越多节目和内容的压力，其中的很多内容可能是长尾的（longtail）、冷门的内容。但网络频率资源却是昂贵稀有的，因此就需要有更好的方案来平衡这种供需关系。
交换式广播视濒：一种电视网络带宽优化利用的方案
【摘 要】
：
随着电信运营商和互联网运营商不断进入视频和电视服务领域，有线电视运营商面临着向用户提供越来越多节目和内容的压力，其中的很多内容可能是长尾的（longtail）、冷门的内容。但网
【机 构】
：
不详
【出 处】
：
中国数字电视
【发表日期】
：
2004年期
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