Caching-Based Scalable Video Transmission Over Cellular Networks

被引：36
|
作者：
Wu, Liang [1 ,2 ]
Zhang, Wenyi [1 ,2 ]
机构：
[1] Chinese Acad Sci, Key Lab Wireless Opt Commun, Hefei 230027, Peoples R China
[2] Univ Sci & Technol China, Dept Elect Engn & Informat Sci, Hefei 230027, Peoples R China
来源：
IEEE COMMUNICATIONS LETTERS | 2016年 / 20卷 / 06期
关键词：
Wireless caching; constrained backhaul; scalable video coding; stochastic geometry; DELIVERY;
D O I：
10.1109/LCOMM.2016.2555298
中图分类号：
TN [电子技术、通信技术];
学科分类号：
0809 ;
摘要：
In this letter, caching-based scalable video transmission over cellular networks under constrained backhaul is considered, where popular videos encoded by scalable video coding are cached at base stations. Joint caching and transmission schemes are proposed considering the impacts of two intrinsic characteristics of videos, namely, popularity and quality. Moreover, mutually dependent relationship between the backhaul capacity and caching-based transmission scheme is also studied. A comprehensive analysis is conducted leveraging tools from stochastic geometry. It is shown that the proposed caching-based transmission schemes not only reduce reduplicative traffic by improving backhaul traffic offloading, but also enhance user satisfaction by providing differentiated user services and reduced video transmission delay.
引用
收藏
页码：1156 / 1159
页数：4
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