Access Types Effect on Internet Video Services and Its Implications on CDN Caching

doi:10.1109/TCSVT.2017.2652487

	Access Types Effect on Internet Video Services and Its Implications on CDN Caching
	Xie, Gaogang 1; Li, Zhenyu 1; Kaafar, Mohamed Ali 2; Wu, Qinghua 1
	2018-05-01
发表期刊	IEEE TRANSACTIONS ON CIRCUITS AND SYSTEMS FOR VIDEO TECHNOLOGY
ISSN	1051-8215
卷号	28 期号:5 页码:1183-1196
摘要	Video providers heavily rely on geographically distributed content distribution networks (CDNs) to place video content as close to users as possible, with an aim of improving video quality and avoiding single point of failure at the server side. The effectiveness of CDNs is mostly dependent on the content consumption patterns. Currently, video providers are offering access to content from different platforms (e.g., mobile devices and PC clients), which might result in distinct video content consumption patterns and finally affect the efficiency of CDN caching. Nevertheless, the access type effect on Internet videos is not well understood. In this paper, using a data set consisting of 26 million video requests of a large-scale commercial video-on-demand system, we study the effect of three main access types, i.e., proprietary software on PC clients, Web browser, and mobile apps. Several observations suggest that access types should be considered carefully in CDN design. In particular, the user engagement, user interests in content, and video popularity dynamics patterns, three important factors for video caching, vary remarkably in the three access types. Leveraging off our findings, we propose an access type-aware CDN caching system that associates a cache for each access type and also several optimizations, including partial caching of videos based on chunk-level caching, cross-platform read-only cache access, and prefiltering of the least popular videos. Trace-driven simulations demonstrate that the access type-aware CDN caching achieves high cache hit rate and, more importantly, greatly reduces the disk load that is measured by the number of cache replacement operations.
关键词	Access type caching content distribution network (CDN) Internet video service measurement
DOI	10.1109/TCSVT.2017.2652487
收录类别	SCI
语种	英语
资助项目	National Natural Science Foundation of China[61572475] ; National Natural Science Foundation of China[61502460] ; National Natural Science Foundation of China[61602448] ; National High-tech Research and Development Program of China[2015AA010201]
WOS研究方向	Engineering
WOS类目	Engineering, Electrical & Electronic
WOS记录号	WOS:000431955000011
出版者	IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
引用统计	被引频次：16[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://119.78.100.204/handle/2XEOYT63/5294
专题	中国科学院计算技术研究所期刊论文_英文
通讯作者	Xie, Gaogang
作者单位	1.Chinese Acad Sci, Inst Comp Technol, Beijing 100190, Peoples R China 2.CSRIO Data61, Sydney, NSW 2015, Australia
推荐引用方式 GB/T 7714	Xie, Gaogang,Li, Zhenyu,Kaafar, Mohamed Ali,et al. Access Types Effect on Internet Video Services and Its Implications on CDN Caching[J]. IEEE TRANSACTIONS ON CIRCUITS AND SYSTEMS FOR VIDEO TECHNOLOGY,2018,28(5):1183-1196.
APA	Xie, Gaogang,Li, Zhenyu,Kaafar, Mohamed Ali,&Wu, Qinghua.(2018).Access Types Effect on Internet Video Services and Its Implications on CDN Caching.IEEE TRANSACTIONS ON CIRCUITS AND SYSTEMS FOR VIDEO TECHNOLOGY,28(5),1183-1196.
MLA	Xie, Gaogang,et al."Access Types Effect on Internet Video Services and Its Implications on CDN Caching".IEEE TRANSACTIONS ON CIRCUITS AND SYSTEMS FOR VIDEO TECHNOLOGY 28.5(2018):1183-1196.