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1. 华南理工大学电子与信息学院 广州 510640
2. 中国电信股份有限公司广东研究院 广州 510630
[ "邓字珊,女,华南理工大学电子与信息学院硕士生,主要研究方向为信号处理。" ]
[ "陈戈,男,中国电信股份有限公司广东研究院高级工程师,主要研究方向为CDN及IP网络。" ]
[ "张军,男,博士,华南理工大学电子与信息学院副教授,主要研究方向为信号处理。" ]
[ "梁洁,女,中国电信股份有限公司广东研究院技术总监,主要研究方向为CDN 及IP网络。" ]
网络出版日期:2015-01,
纸质出版日期:2015-01-20
移动端阅览
邓字珊, 陈戈, 张军, 等. 基于流行度分类的流媒体分段策略[J]. 电信科学, 2015,31(1):146-151.
Yushan Deng, Ge Chen, Jun Zhang, et al. Segmentation Strategy of Streaming Media Based on Popularity Classifying[J]. Telecommunications science, 2015, 31(1): 146-151.
邓字珊, 陈戈, 张军, 等. 基于流行度分类的流媒体分段策略[J]. 电信科学, 2015,31(1):146-151. DOI: 10.11959/j.issn.1000-0801.2015034.
Yushan Deng, Ge Chen, Jun Zhang, et al. Segmentation Strategy of Streaming Media Based on Popularity Classifying[J]. Telecommunications science, 2015, 31(1): 146-151. DOI: 10.11959/j.issn.1000-0801.2015034.
对流媒体内部、外部流行度的特点以及流媒体外部流行度与缓存替换次数的关系进行了分析,并在此基础上,针对流媒体的缓存替换通常集中在某一小段流行度范围的特点,提出了一种基于外部流行度分类的流媒体分段方法,令替换频繁的视频采用较小的分段,而其他替换不频繁的视频采用较大的分段,从而提高缓存空间的利用率。实验结果表明,与均匀分段相比,提出的流媒体分段方法可以用更少的分段数目达到相同的命中率。
The characteristics of external and internal popularity of streaming media and the relationship of external popularity and the number of cache replacement were analyzed. Respecting the characteristics that cache replacements are focus on a small rang of popularity
a segmentation method based on popularity classifying of streaming media
which uses smaller segments on videos replaced frequently and bigger segments on the other videos
was proposed. The experimental result shows that the segmentation method can effectively reduce the number of segments compared with the uniform segmentation method under the same conditions of the byte hit ratio.
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