Dynamic Scheme Transition Adaptable to Variable Video Popularity in a Digital Broadcast Network
Dynamic Scheme Transition Adaptable to Variable Video Popularity in a Digital Broadcast Network
复制标题
适应数字广播网络中可变视频流行度的动态方案转换
DOI：
10.1109/tmm.2009.2012935
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发表时间：
2009
影响因子：
7.3
通讯作者：
H. Yeom
中科院分区：
文献类型：
--
作者：
Hyunjoo Kim;H. Yeom
为了通过网络提供按需视频流服务，具有高和低客户端请求速率的视频对象必须被有效地服务。在本文中，我们提出了一个动态的方案过渡，提供点播流媒体服务，有效地不管视频流行。这种方法可以通过根据请求速率转换服务方案来保持服务质量（QoS）。当视频流行度低时，服务器通过逐段地广播视频片段来提供服务，而当视频流行度高时，服务器通过周期性广播来提供服务。服务器从服务信道的数量中识别客户端请求速率的变化，并自主地确定向更有效的服务方案的转换。我们评估了该方案的各种参数和跟踪从一家公司提供流媒体服务的过渡。结果表明，方案转换的性能非常有效。
To provide on-demand video streaming services through the network, video objects with both high and low client request rates must be served efficiently. In this paper, we propose a dynamic scheme transition to provide on-demand streaming services efficiently regardless of video popularity. This approach can maintain quality-of-service (QoS) by transitioning the service scheme according to the request rate. The server provides services by heuristically broadcasting video segments when the video popularity is low and by a periodic broadcast when the video popularity is high. The server identifies the variations in client request rates from the number of service channels and determines transitions to more efficient service schemes autonomously. We evaluated this scheme transition for various parameters and traces from a company providing streaming services. The results show that the performance of scheme transition is very efficient.