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arXiv 1807.02548cs.ITcs.MMeess.IVmath.IT
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面向移动用户的延迟感知编码缓存

Delay-Aware Coded Caching for Mobile Users

Emre Ozfatura, Thomas Rarris, Deniz Gunduz, Ozgur Ercetin

摘要:

在这项工作中,我们研究了缓存容量和用户延迟之间的权衡合作小基站(SBS)编码缓存系统与移动用户。首先,延迟感知的编码缓存策略,它考虑到文件的流行度和最大重缓冲延迟,以最小化移动用户的平均重缓冲延迟在给定的缓存容量约束下,介绍。随后,我们解决的情况下,一些文件是由宏小区基站(MBS)时,SBS的缓存容量不足以存储库中的所有文件。对于这种情况下,我们开发了一个编码的缓存策略,最大限度地减少了平均再缓冲延迟约束下的MBS服务的平均数据量。

英文摘要:

In this work, we study the trade-off between the cache capacity and the user delay for a cooperative Small Base Station (SBS) coded caching system with mobile users. First, a delay-aware coded caching policy, which takes into account the popularity of the files and the maximum re-buffering delay to minimize the average rebuffering delay of a mobile user under a given cache capacity constraint is introduced. Subsequently, we address a scenario where some files are served by the macro-cell base station (MBS) when the cache capacity of the SBSs is not sufficient to store all the files in the library. For this scenario, we develop a coded caching policy that minimizes the average amount of data served by the MBS under an average re-buffering delay constraint.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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